UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                            -------------------------

(Mark One)

[X]      QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
         EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2000
                               -------------

                                       or

[   ]    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
         EXCHANGE ACT OF 1934

For the transition period from __________________ to __________________

Commission file number  0-19377
                        -------

                                TCSI CORPORATION
             (Exact name of registrant as specified in its charter)


               NEVADA                                  68-0140975
----------------------------------------    ------------------------------------
   (State or other jurisdiction of          (I.R.S. Employer Identification No.)
   incorporation or organization)


                 1080 Marina Village Parkway, Alameda, CA 94501
--------------------------------------------------------------------------------
                    (Address of principal executive offices)
                                   (Zip Code)

                                 (510) 749-8500
                                 --------------
              (Registrant's telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days.

Yes     X           No
     -------           ---------

            23,144,219 shares of Common Stock of the Registrant were outstanding
as of August 10, 2000.


<PAGE>

                                TABLE OF CONTENTS

                                                                         PAGE

PART I - FINANCIAL INFORMATION

Item 1.  Consolidated Financial Statements                                  3

         Consolidated Balance Sheets as of
              June 30, 2000 (UNAUDITED) and December 31, 1999               3

         Consolidated Statements of Operations for the three and six
              months ended June 30, 2000 and 1999 (UNAUDITED)               4

         Consolidated Statements of Cash Flows for the
              six months ended June 30, 2000 and 1999 (UNAUDITED)           5

         Notes to Consolidated Financial Statements (UNAUDITED)             6

Item 2.  Management's Discussion and Analysis of Financial
         Condition and Results of Operations                                9

Item 3.  Quantitative and Qualitative Disclosures about Market Risk        18

PART II - OTHER INFORMATION

Item 1.  Legal Proceedings                                                N/A

Item 2.  Changes in Securities                                            N/A

Item 3.  Defaults Upon Senior Securities                                  N/A

Item 4.  Submission of Matters to a Vote of Security Holders               19

Item 5.  Other Information                                                N/A

Item 6.  Exhibits and Reports on Form 8-K                                  19

Signature                                                                  20


                                       2
<PAGE>

PART I - FINANCIAL INFORMATION
ITEM 1.  CONSOLIDATED FINANCIAL STATEMENTS

                                TCSI CORPORATION

                           CONSOLIDATED BALANCE SHEETS

               (IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)
<TABLE>
<CAPTION>
<S>                                                                                       <C>                <C>
                                                                                        JUNE 30,           DECEMBER 31,
                                                                                          2000                 1999
                                                                                    ------------------------------------
                                                                                      (Unaudited)
ASSETS
Current assets:

     Cash and equivalents                                                            $      21,055         $       8,788
     Marketable securities                                                                  15,344                22,926
     Receivables, net                                                                        4,284                12,134
     Other receivables                                                                         345                   879
     Other current assets                                                                    1,291                 1,314
                                                                                     -------------         -------------
         Total current assets                                                               42,319                46,041
Furniture, equipment and leasehold improvements, net                                         7,077                 8,457
Other assets                                                                                 3,609                 3,665
                                                                                     -------------         -------------
                  Total assets                                                       $      53,005         $      58,163
                                                                                     =============         =============

LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:

     Accounts payable                                                                $       2,535         $       3,449
     Accrued liabilities                                                                     3,268                 3,157
     Deferred revenue                                                                          579                 1,029
     Income taxes payable                                                                    1,486                 1,046
                                                                                     -------------         -------------
         Total current liabilities                                                           7,868                 8,681
                                                                                     -------------         -------------

Shareholders' equity:
     Preferred shares, par value $0.01 per share; 5,000,000 shares authorized;
         none issued and outstanding
                                                                                                 -                     -
     Common shares, par value $0.10 per share; 75,000,000 shares authorized;
         23,060,486 and 22,686,724 shares issued and outstanding, as of June 30,

         2000 and December 31, 1999, respectively                                            2,306                 2,268
     Additional paid-in capital                                                             52,447                51,265
     Accumulated other comprehensive income                                                     55                    25
     Accumulated deficit                                                                    (9,671)               (4,076)
                                                                                     -------------         -------------
         Total shareholders' equity                                                         45,137                49,482
                                                                                     -------------         -------------
                  Total liabilities and shareholders' equity                         $      53,005            $   58,163
                                                                                     ==============        =============
</TABLE>

          See accompanying notes to consolidated financial statements.

                                       3
<PAGE>


                                TCSI CORPORATION
                      CONSOLIDATED STATEMENTS OF OPERATIONS
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
                                   (UNAUDITED)
<TABLE>
<CAPTION>
                                                               THREE MONTHS ENDED                SIX MONTHS ENDED
                                                                    JUNE 30,                         JUNE 30,
                                                          ------------------------------  -------------------------------
                                                              2000            1999             2000            1999
                                                          ------------    ------------    --------------   -------------
<S>                                                              <C>           <C>              <C>              <C>
Revenues:
     Services                                             $      3,014    $      8,176    $        6,304   $      14,633
     Software licensing fees                                     2,426           1,979             4,483           5,591
                                                          ------------    ------------    --------------   -------------
          Total revenues                                         5,440          10,155            10,787          20,224

Costs, expenses, and special items:
     Services                                                    2,416           5,019             4,763           9,951
     Product development                                         2,201           3,898             5,570           7,861
     Selling, general and administrative                         3,550           3,940             6,733           7,608
     Nonrecurring special items                                      -               -               364               -
                                                          ------------    ------------    --------------   -------------
          Total costs, expenses, and special items               8,167          12,857            17,430          25,420
                                                          ------------    ------------    --------------   -------------

Loss from operations                                            (2,727)         (2,702)           (6,643)         (5,196)

Interest / other income                                            544             477             1,048           1,159
                                                          ------------    ------------    --------------   -------------
Loss before income tax provision                                (2,183)         (2,225)           (5,595)         (4,037)
Income tax provision                                                 -             387                 -             387
                                                          ------------    ------------    --------------   -------------
Net loss                                                  $     (2,183)   $     (2,612)   $       (5,595)  $      (4,424)
                                                          ============    ============    ==============   =============

Net loss per share-basic and diluted                      $      (0.09)   $      (0.12)  $         (0.24)  $       (0.20)
                                                          ============    ============    ==============   =============
Shares used in computing net loss per share -
   basic and diluted                                            23,054          22,578            22,965          22,454
                                                          ============    ============    ==============   =============
</TABLE>

          See accompanying notes to consolidated financial statements.

                                       4
<PAGE>

                                TCSI CORPORATION
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
                                   (UNAUDITED)
<TABLE>
<CAPTION>

                                                                                            SIX MONTHS ENDED
                                                                                                JUNE 30,
                                                                                -------------------------------------
                                                                                     2000                   1999
                                                                                --------------           ------------
  CASH FLOWS FROM OPERATING ACTIVITIES:
<S>                                                                                 <C>                  <C>
       Net loss                                                                     $   (5,595)          $     (4,424)
       Adjustments to reconcile net loss to net cash provided by (used in)
          operating activities:
           Depreciation and amortization                                                 2,273                  2,714
           Gain on disposal of fixed assets                                                (10)                     -
           Compensation related to executive stock options                                  45                      -
           Net changes in operating assets and liabilities:
              Receivables, net                                                           7,850                   (781)
              Other receivables                                                            534                   (830)
              Other assets                                                                (435)                (1,736)
              Accounts payable                                                            (914)                (3,204)
              Accrued liabilities                                                          111                    573
              Deferred revenue                                                            (450)                  (973)
              Income taxes payable                                                         440                    533
                                                                                --------------           ------------
                    Net cash provided by (used in) operating activities                  3,849                 (8,128)

  CASH FLOWS FROM INVESTING ACTIVITIES:
       Capital and leasehold improvement expenditures, net                                (369)                (1,428)
       Purchases of marketable securities                                               (3,012)               (18,472)
       Redemptions and sales of marketable securities                                   10,624                 23,381
                                                                                --------------           ------------
                    Net cash provided by investing activities                            7,243                  3,481

  CASH FLOWS FROM FINANCING ACTIVITY:
       Proceeds from issuance of common stock                                            1,175                    372

  Effect of exchange rate changes on cash and equivalents                                    -                     31
                                                                                --------------           ------------
  Net increase (decrease) in cash and equivalents                                       12,267                 (4,244)
  Cash and equivalents at the beginning of the period                                    8,788                 22,308
                                                                                --------------           ------------
  Cash and equivalents at the end of the period                                 $       21,055           $     18,064
                                                                                ==============           ============

  SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
  Cash refunds received for income taxes, net                                   $         (200)          $       (156)
                                                                                ==============           ============
</TABLE>


          See accompanying notes to consolidated financial statements.

                                       5
<PAGE>



                                TCSI CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

NOTE 1 - BASIS OF PRESENTATION

         The unaudited consolidated interim financial statements of TCSI
Corporation ("TCSI" or the "Company"), included herein, have been prepared on
the same basis as the December 31, 1999 audited consolidated financial
statements and include all adjustments, consisting of normal recurring
adjustments, necessary to present a fair statement of the results for the
interim periods presented. The results of operations for current interim periods
are not necessarily indicative of results to be expected for the current year or
for any other period. These consolidated financial statements should be read in
conjunction with the audited consolidated financial statements and notes thereto
for the fiscal year ended December 31, 1999 included in the Company's Annual
Report on Form 10-K (File No. 0-19377).

         The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosures of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting periods. Actual results could differ from those estimates.

NOTE 2 - RECEIVABLES AND CREDIT RISK

         Receivable balances are primarily from large, credit-worthy customers
in the telecommunications industry. The Company performs ongoing credit
evaluations of its customers and does not require collateral. The Company does
not anticipate any significant default from a customer's inability to make a
payment for products received and/or for services rendered. Allowances are
maintained for potential credit losses.

Receivables consist of the following:

<TABLE>
<S>                                                     <C>                    <C>
                                                  JUNE 30,           DECEMBER 31,
                                                    2000                1999
                                               --------------     ----------------
                                                (Unaudited)

                                                         (IN THOUSANDS)

     Billed receivables                        $       4,836        $     11,763
     Unbilled receivables                                476               1,579
     Allowance for doubtful accounts                  (1,028)             (1,208)
                                               -------------        ------------
                                               $       4,284        $     12,134
                                               =============        ============
</TABLE>


NOTE 3 - FURNITURE, EQUIPMENT AND LEASEHOLD IMPROVEMENTS, NET

         Furniture, equipment and leasehold improvements are stated at cost.
Amortization is provided for leasehold improvements over the life of the lease
utilizing the straight-line method. Straight-line depreciation is provided for
equipment and furniture in amounts sufficient to relate the cost of depreciable
assets to operations over their estimated service lives of three to five years.

                                       6
<PAGE>
                                TCSI CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

                                  (CONTINUED)


Furniture, equipment and leasehold improvement balances consist of the
following:
<TABLE>
<CAPTION>
                                                                   JUNE 30,           DECEMBER 31,
                                                                     2000                 1999
                                                               -----------------    --------------
                                                                 (Unaudited)
                                                                           (IN THOUSANDS)
<S>                                                               <C>                  <C>
     Furniture and fixtures                                    $       4,253         $     4,206
     Computer and lab equipment                                       19,935              19,672
     Leasehold improvements                                            7,055               6,995
                                                               -------------         -----------
                                                                      31,243              30,873
     Accumulated depreciation and amortization                       (24,166)            (22,416)
                                                               -------------         -----------
                                                               $       7,077         $     8,457
                                                               =============         ===========
</TABLE>

NOTE 4 - INCOME TAXES

         Due to uncertainties regarding the amount and timing of future taxable
income, the Company, as of June 30, 2000, had no deferred tax assets due to the
establishment of a full valuation allowance against its deferred tax assets.

NOTE 5 - NET LOSS PER SHARE

Per Share Information

         Basic net loss per share is computed using the weighted average number
of common shares outstanding. Diluted net loss per share is computed using the
weighted average number of shares outstanding and dilutive common stock
equivalents from the Company's stock option plans, calculated using the treasury
stock method. The following table sets forth the computation of basic and
diluted net loss per share:

<TABLE>
<CAPTION>
                                                                     THREE MONTHS ENDED                SIX MONTHS ENDED
                                                                          JUNE 30,                         JUNE 30,
                                                                ------------------------------    --------------------------
                                                                    2000             1999            2000           1999
                                                                -------------     ------------    -----------   ------------
                                                                          (In thousands, except per share amounts)
                                                                                         (UNAUDITED)
NUMERATOR
<S>                                                             <C>               <C>
   Numerator for basic net loss per share                       $    (2,183)      $    (2,612)     $ (5,595)     $   (4,424)
                                                                ===========       ===========      ========      ==========
DENOMINATOR
  Denominator for basic loss per share
     - weighted-average common shares                                23,054            22,578        22,965          22,454
  Effect of dilutive securities-employee stock options                   -                 -              -              -
                                                                -----------       -----------      --------      ----------
  Denominator for diluted loss per share                             23,054            22,578        22,965          22,454
                                                                ===========       ===========      ========      ==========
  Net loss per share-basic and diluted                          $     (0.09)      $     (0.12)     $  (0.24)     $    (0.20)
                                                                ===========       ===========      ========      ==========
</TABLE>

         Since the Company had net losses during the three and six months ended
June 30, 2000 and June 30, 1999, weighted-average common shares (with an
exercise price less than the average market price of the Company's stock) were
not included in the computations because their effects would be antidilutive.

                                       7
<PAGE>

                                TCSI CORPORATION

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

                                  (CONTINUED)


NOTE 6 - COMPREHENSIVE LOSS

         The following is a summary of comprehensive loss for the three and
six-month periods ended June 30, 2000 and 1999, respectively:
<TABLE>
<CAPTION>

                                                           THREE MONTHS ENDED                 SIX MONTHS ENDED
                                                                JUNE 30,                          JUNE 30,
                                                      ------------------------------    ------------------------------
                                                          2000             1999             2000             1999
                                                      -------------    -------------    --------------   --------------
                                                                              (In thousands)
                                                                                (UNAUDITED)
<S>                                                   <C>              <C>              <C>                     <C>
Net loss                                              $      (2,183)   $     (2,612)   $       (5,595)    $     (4,424)
Translation gain (loss)                                           -            (230)                -               31
Unrealized gains on marketable securities                        30              12                31               12
                                                      -------------    ------------    --------------    -------------
Comprehensive loss                                    $      (2,153)   $     (2,830)   $       (5,564)    $     (4,381)
                                                      =============    =============    =============     ============
</TABLE>



                                       8
<PAGE>

                                TCSI CORPORATION

         IN ADDITION TO HISTORICAL INFORMATION CONTAINED HEREIN, THIS
MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
OPERATIONS CONTAINS FORWARD-LOOKING STATEMENTS. THE FORWARD-LOOKING STATEMENTS
CONTAINED HEREIN ARE SUBJECT TO CERTAIN FACTORS THAT COULD CAUSE ACTUAL RESULTS
TO DIFFER MATERIALLY FROM THOSE REFLECTED IN THE FORWARD-LOOKING STATEMENTS.
SUCH FACTORS INCLUDE, BUT ARE NOT LIMITED TO, THOSE DISCUSSED BELOW AND IN THE
COMPANY'S FORM 10-K FOR THE YEAR ENDED DECEMBER 31, 1999.

OVERVIEW

         TCSI currently operates in one segment, which is providing integrated
software products and services for the global telecommunications ("telecom")
industry. The Company's two product lines are: (1) Catalant(R), which offers
carrier-class network management application and platform capabilities,
targeting next generation voice, data and wireless networks and (2) WorldWin(R),
which offers integrated Operations Support System ("OSS") solutions, including
provisioning, service assurance, mediation and billing functionality for
emerging service providers worldwide.

         The Company provides services to customers under time-and-material and
fixed-price contracts. The Company recognizes revenues under time-and-material
contracts as the services are performed. For fixed-price contracts, the Company
recognizes revenues using the percentage-of-completion method, which is based on
the percentage of contract costs incurred in relation to total estimated
contract costs. The scope and size of the Company's system solutions can be
large and complex, often requiring delivery over several quarters. From time to
time, customers have established payment milestones, which can be achieved only
after completion of the related services. In limited cases, some customers have
disputed fees charged for services provided. Although the Company has been, and
is, under no obligation to compromise its billed amounts, the Company has
periodically reduced its accounts receivable when such disputes could not be
amicably resolved and may do so in the future. Additionally, a portion of the
Company's revenues has been, and is expected to continue to be, derived from
software licensing fees from a limited number of customers. The Company also
licenses software to customers under contracts, which do not require significant
production, modification or customization of software. The Company recognizes
revenues under these contracts when a non-cancelable license agreement has been
signed, the product has been shipped, the fees are fixed and determinable,
collectibility is probable and vendor-specific objective evidence of fair value
exists to allocate the total fee to elements of the arrangement.

         The licensing and implementation of the Company's software products
generally involve a significant commitment of resources by prospective
customers. As a result, the Company's sales process is subject to delays
associated with lengthy approval processes typically accompanying such
significant capital expenditures. Accordingly, the Company is substantially
dependent on its customers' decisions as to the timing and level of expenditures
and resource commitments. The variability in the timing of such expenditures
could cause material fluctuations in the Company's business, operating results
and financial condition. As a result, the Company's 2000 and 1999 quarterly
results for the three and six months ended June 30, have been adversely affected
by delays in decisions to purchase software licenses and related services.

         A substantial portion of the Company's revenues is derived from the
sale of the Company's software products and services to major telecom service
providers and equipment manufacturers. Due to the complex nature of the element,
network, and service management systems being developed, successful deployment
of these systems can contain significant technological risks. The Company has in
the past relied, and will in the future rely, on its development and
implementation expertise. Development and implementation of these systems often
occurs over several quarters.

         Management believes that revenue growth is highly dependent upon the
development and enhancement of software products that meet market needs.
Management intends to target Company-funded product development spending at
levels consistent with the Company's growth objectives and improving its
competitive position. Furthermore, management expects that, from time to time,
it may periodically acquire businesses, products, or technologies to enhance the
Company's current product offerings.

                                       9
<PAGE>
                                TCSI CORPORATION


RESULTS OF OPERATIONS

         REVENUES. The Company generates revenues from licensing its software
products and providing related services to the telecom industry. Total revenues
for the three months ended June 30, 2000 decreased 47% to $5.4 million, from
$10.2 million for the comparable 1999 period. Total revenues for the six months
ended June 30, 2000 decreased 47% to $10.8 million, from $20.2 million for the
comparable 1999 period. The decline in revenues was due to the completion of
several major projects in 1999, which were not replaced during 2000.

         Revenues from services for the three months ended June 30, 2000
decreased 63% to $3.0 million, from $8.2 million for the comparable 1999 period.
Revenues from services for the six months ended June 30, 2000 decreased 57% to
$6.3 million, from $14.6 million for the comparable 1999 period. The decreases
resulted primarily from the completion of several major projects in 1999, which
were not replaced during 2000. Revenue from software licensing fees for the
three months ended June 30, 2000 increased 20% to $2.4 million, from $2.0
million for the comparable 1999 period. The increase resulted from run-time
license revenue from primarily two customers in the second quarter of 2000.
Revenue from software licensing fees for the six months ended June 30, 2000
decreased 20% to $4.5 million, from $5.6 million for the comparable 1999 period.
The decrease resulted primarily from the inclusion in the first quarter of 1999
of revenues for certain one-time licenses. Excluding such one-time licenses,
software licensing fees for the six months ended June 30, 2000 would have
increased 10% from $4.1 million for the same period of 1999.

         Revenues outside of the United States accounted for 61% of the
Company's total revenues for the three months ended June 30, 2000 compared to
76% for the comparable 1999 period. Revenues outside of the United States
accounted for 60% of the Company's total revenues for the six months ended June
30, 2000 compared to 69% for the comparable 1999 period. Revenues from the
Asia-Pacific region for the three months ended June 30, 2000 decreased 49% to
$2.4 million, from $4.7 million for the comparable 1999 period. Revenues from
the Asia-Pacific region for the six months ended June 30, 2000 decreased 56% to
$3.6 million, from $8.2 million for the comparable 1999 period. Revenues from
the Americas region for the three months ended June 30, 2000 decreased 13% to
$2.1 million, from $2.4 million for the comparable 1999 period. Revenues from
the Americas region for the six months ended June 30, 2000 decreased 29% to $4.4
million, from $6.2 million for the comparable 1999 period. Revenues from the
European region for the three months ended June 30, 2000 decreased 71% to $0.9
million, from $3.1 million for the comparable 1999 period. Revenues from the
European region for the six months ended June 30, 20000 decreased 52% to $2.8
million, from $5.8 million for the comparable 1999 period. The Company expects
the geographical mix of revenues to vary from period to period as it responds to
global buying habits and develops relationships with new and existing partners
and channels.

         To date, a portion of revenues has been concentrated among a limited
number of customers. Two customers accounted for more than 10% of the Company's
revenue during the three months ended June 30, 2000, with NEC and Zaffire, Inc.
contributing 36% and 16% of total revenues, respectively. For the three and six
months ended June 30, 2000, the concentration of revenues from the Company's
five largest customers was 70% and 57%, respectively, compared to 70% and 71%,
for the comparable 1999 periods. The revenues from these customers represent
many separate and distinct projects that are geographically dispersed throughout
the world. (See "Certain Factors That May Affect Future Results and Market Price
of Stock-Customer Concentration")

         COSTS OF SERVICES. The Company incurs direct costs in the development
and deployment of its customers' software solutions. The major components of
direct costs are employee compensation, subcontractor fees, training costs, and
other billable direct costs, including travel expenses. Direct costs also
include an allocation for benefits, facilities, telephone expenses, information
systems support, depreciation, and amortization of intangibles. Costs of
services for the three months ended June 30, 2000 decreased 52% to $2.4 million,
from $5.0 million for the comparable 1999 period. Costs of services for the six
months ended June 30, 2000 decreased 52% to $4.8 million, from $10.0 million for
the comparable 1999 period. The decrease in costs of services in 2000 is
primarily due to reduced headcount and related

                                       10
<PAGE>
                                TCSI CORPORATION

expenses. As a percentage of service revenues, costs of services for the three
months ended June 30, 2000 were 80% of service revenues compared to 61% for the
comparable 1999 period. As a percentage of service revenues, costs of services
for the six months ended June 30, 2000 were 76% of service revenues compared to
68% for the comparable 1999 period. The cost of service percentage may remain at
or increase from the second quarter 2000 level until existing and future
customers increase their development efforts.

         PRODUCT DEVELOPMENT. Product development expenses include employee
compensation, subcontractor fees, training costs and other product development
costs for existing and potential new products, along with an allocation for
benefits, facilities, telephone expenses, information systems support,
depreciation and amortization of intangibles. For the three months ended June
30, 2000, the Company invested $2.2 million, or 40% of revenues, in internally
funded product development compared to $3.9 million, or 38% of revenues for the
three months ended June 30, 1999. For the six months ended June 30, 2000, the
Company invested $5.6 million, or 52% of revenues, in internally funded product
development compared to $7.9 million, or 39% of revenues for the six months
ended June 30, 1999. The decrease in product development expenses in 2000 is due
to the Company's expense reduction efforts as well as reductions in employee
headcount and related costs. The Company expects to continue to invest in its
new component-based applications. There can be no assurance, however, that the
Company's product development spending will result in the successful
introduction of new products.

         SELLING, GENERAL AND ADMINISTRATIVE EXPENSES. Selling expenses include
sales and marketing, employee compensation, promotional material, trade shows,
travel, and facilities expenses. General and administrative expenses include
compensation costs related to executive management, finance and administrative
personnel, along with the other administrative costs including recruiting, legal
and accounting fees, insurance and bad debt expense. Selling, general and
administrative expenses for the three months ended June 30, 2000 decreased 8% to
$3.6 million, from $3.9 million for the comparable 1999 period. Selling, general
and administrative expenses for the six months ended June 30, 2000 decreased 12%
to $6.7 million, from $7.6 million for the comparable 1999 period. The decrease
in such expenses in 2000 is primarily due to reductions in employee headcount
and related costs and lower rent expense resulting primarily from the
consolidation of the Company's operations. Selling, general and administrative
expenses as a percentage of revenues for the three months ended June 30, 2000
were 65% of revenues, compared to 39% of revenues for the comparable 1999
period. Selling, general and administrative expenses as a percentage of revenues
for the six months ended June 30, 2000 were 62% of revenues, compared to 38% of
revenues for the comparable 1999 period. The increase in selling, general and
administrative expenses as a percentage of revenues in 2000 resulted primarily
from the reduction of such costs at a rate less than that of the reduction in
revenues.

         NONRECURRING SPECIAL ITEMS. For the three months ended June 30, 2000,
the Company did not record any nonrecurring special items. For the six months
ended June 30, 2000, $0.4 million of nonrecurring special charges were recorded
and were related primarily to severance costs associated with the Company's
reorganization of its operations.

         INCOME TAX PROVISION (BENEFIT). Due to uncertainties regarding the
amount and timing of future taxable income, the Company, as of June 30, 2000,
had no deferred tax assets due to the establishment of a full valuation
allowance against its deferred tax assets.

LIQUIDITY AND CAPITAL RESOURCES

OPERATING ACTIVITIES

         Net cash provided by operating activities was $3.8 million for the six
months ended June 30, 2000 compared to net cash used in operating activities of
$8.1 million for the comparable 1999 period. The increase in cash provided by
operations was primarily the result of the increased collection of outstanding
accounts receivable, partially offset by a reduction in accounts payable.

                                       11
<PAGE>

                                TCSI CORPORATION

INVESTING ACTIVITIES

         Net cash provided by investing activities was $7.2 million for the six
months ended June 30, 2000 compared to net cash provided by investing activities
of $3.5 million for the comparable 1999 period. During the six months ended June
30, 2000, the net of the purchases, sales and redemptions of marketable
securities was $7.6 million, compared to $4.9 million of net marketable
securities for the comparable 1999 period.

FINANCING ACTIVITIES

         Net cash provided by financing activities was $1.2 million for the six
months ended June 30, 2000 compared to $0.4 million for the comparable 1999
period. The increase was primarily the result of increased stock option
exercises and stock purchases pursuant to the Company's Employee Stock Purchase
Plan ("ESPP"), which is a function of market conditions and investment decisions
made by employees. The proceeds from stock option exercises and ESPP purchases
for the six months ended June 30, 2000 were $1.0 million and $0.2 million,
respectively.

ADDITIONAL INFORMATION ON LIQUIDITY AND CAPITAL RESOURCES

         As of June 30, 2000, the Company had cash and equivalents and
marketable securities of $36.4 million, a $4.7 million, or 15% increase, from
December 31, 1999. The Company believes that existing cash balances (including
equivalents and marketable securities), together with other potential sources of
liquidity, including cash flows from operating activities, will provide adequate
cash to fund its operations for at least the next twelve months.

CERTAIN FACTORS THAT MAY AFFECT FUTURE RESULTS AND MARKET PRICE OF STOCK

         STATEMENTS IN THIS REPORT WHICH ARE PREFACED WITH WORDS SUCH AS
"EXPECTS," "ANTICIPATES," "BELIEVES" AND SIMILAR WORDS AND OTHER STATEMENTS OF
SIMILAR SENSE, ARE FORWARD-LOOKING STATEMENTS. THESE STATEMENTS ARE BASED ON THE
COMPANY'S CURRENT EXPECTATIONS AND ESTIMATES AS TO PROSPECTIVE EVENTS AND
CIRCUMSTANCES WHICH MAY OR MAY NOT BE WITHIN THE COMPANY'S CONTROL AND AS TO
WHICH NO FIRM ASSURANCES CAN BE GIVEN. THESE FORWARD-LOOKING STATEMENTS, LIKE
ANY OTHER FORWARD-LOOKING STATEMENTS, INVOLVE RISKS AND UNCERTAINTIES THAT COULD
CAUSE ACTUAL RESULTS TO DIFFER MATERIALLY FROM THOSE PROJECTED OR ANTICIPATED.
THE FOLLOWING DISCUSSION HIGHLIGHTS SOME OF THE RISKS THE COMPANY FACES.

POTENTIAL FLUCTUATIONS IN FUTURE OPERATING RESULTS

         The Company has experienced and expects to continue to experience
significant fluctuations in revenues and operating results on a quarterly and/or
an annual basis as a result of a number of factors, many of which are beyond the
control of the Company. These factors include the cancellation, modification, or
non-renewal of service, license, or maintenance agreements; the size and timing
of significant customer engagements and license fees; the relative proportion of
services and software licensing fees; personnel changes; capital spending
patterns of the Company's customers; concentration of the Company's customers;
the lengthy sales cycles of the Company's products and services; industry
acceptance of the Company's products and services; changes in operating
expenses; new product introductions and product enhancements by the Company or
its competitors; the ability of the Company to develop, introduce, and market
new products and product enhancements on a timely basis; changes in pricing
policies by the Company or its competitors; regulatory changes, currency
fluctuations, and general economic factors. These factors are difficult to
forecast, and these or other factors could have a material adverse effect on the
Company's business, operating results, and financial condition.

         Historically, a portion of the Company's revenue has been derived from
software licensing fees from a limited number of customers. Variability in the
timing of such license fees has caused, and may continue to cause, material
fluctuations in the Company's business, operating results, and financial
condition. The Company's products and services generally require significant
capital expenditures by customers as well as the commitment of resources to
implement, monitor, and test the Company's enhancements to such systems.
Accordingly, the Company is substantially dependent on its customers' decisions
as to the timing and level of such expenditures and resource commitments.

                                       12
<PAGE>
                                TCSI CORPORATION

         In addition, the Company typically realizes a significant portion of
license revenues in the last weeks or even days of a quarter. As a result, the
magnitude of quarterly fluctuations may not become evident until late in, or
after the close of, a particular quarter. The Company's expenses are based in
part on the Company's expectations as to future revenue levels and to a large
extent are fixed in the short-term. If revenues do not meet expectations, the
Company's business, operating results, and financial condition are likely to be
materially adversely affected. In particular, because only a small portion of
the Company's expenses varies with revenues, results of operations may be
disproportionately affected by a reduction in revenues. As a result, the Company
believes that period-to-period comparisons of its operating results are not
necessarily meaningful and should not be relied upon as indications of future
performance.

LENGTHY SALES AND IMPLEMENTATION CYCLES

         The Company's products are typically intended for use in applications
that may be critical to a customer's business. The licensing and implementation
of the Company's software products generally involve a significant commitment of
resources by prospective customers. Historically, the Company's sales process
has been subject to delays associated with lengthy approval processes that
typically accompany significant capital expenditures. However, the Company's
latest products are intended to reduce the time and resources required for
delivery to customers, and, therefore reduce the sales cycle. Still, the time
required to implement the Company's products can vary significantly with the
needs of its customers and is generally a process that extends for several
months. Because of their complexity, larger implementations may take multiple
quarters to complete. From time to time, the Company has provided services to
implement certain large projects, and, although no contractual basis exists for
the customer to do so, certain customers have delayed payment of a portion of
service fees and in some cases have disputed the fees charged. There can be no
assurance the Company will not experience additional delays or disputes
regarding payment in the future, particularly if the Company receives orders for
large, complex installations. There exists the risk that a change in a
customer's technology or business strategy during such lengthy development and
implementation periods may cause early termination of a project or
discontinuance of future phases. In this regard, the Company, in limited cases,
has experienced, and may continue to experience, significant fluctuations in
revenues and operating results on a quarterly and annual basis due to
termination, cancellation, or non-renewal of agreements.

ACCEPTANCE OF THE COMPANY'S PRODUCTS; PRODUCT DEVELOPMENT RISKS

         A substantial portion of the Company's revenue is derived from the sale
of the Company's products and services which provide software solutions to major
corporations in the worldwide telecom services and equipment industries.
Although many telecom companies currently seek to integrate their business
operation systems and network operation systems, there can be no assurance that
these or other service providers will continue to seek the integration of such
systems or that such companies will use the Company's products. Due to the
complex nature of the OSS software developed by the Company, the Company has in
the past relied, and will in the future continue to rely, on its development and
implementation expertise. The Company continues to develop software products
that reduce the customization necessary to fully integrate customers' systems.
There can be no assurance, however, that the Company will continue to
successfully develop and market such products or, even if successful, that the
revenue from such products will compensate for any concurrent loss of
development and implementation service revenues. The failure by the Company to
successfully develop and market such products and technologies would have a
material adverse effect on its business, operating results, and financial
condition.

         The Company's future business, operating results, and financial
condition are significantly dependent upon the continued market acceptance of
its portfolio of products and services. There can be no assurance that the
Company's technology will continue to achieve market acceptance or that the
Company will be successful in developing, introducing, or marketing improvements
to its products. Moreover, the life cycle of component-based products is
difficult to estimate due in large part to the recent changes in the telecom
market, the effect of future product enhancements, and competition. A decline in
the demand for the Company's software as a result of new or existing competing
technologies or other factors would have a material adverse effect on the
Company's business, operating results, and financial condition.

                                       13
<PAGE>
                                TCSI CORPORATION

CUSTOMER CONCENTRATION

         To date, a significant portion of the Company's revenues has been
concentrated among a limited number of customers. The Company anticipates that
it will continue to experience significant customer concentration. There can be
no assurance that such customers or any other customers will in the future
continue to place orders with the Company which equal or exceed the comparable
levels for prior periods. In addition, the Company's customers typically
designate one individual to procure network management software. If any of these
individuals were terminated, transferred, or replaced, the Company would be
vulnerable to cancellation of an order if, for example, the Company's
competitors had existing relationships with the individual's replacement. As a
result of these factors, the Company's business, operating results, and
financial condition could be materially adversely affected.

PRODUCT DEFECTS

         The Company provides complex software products for major telecom
equipment manufacturers, systems integrators, and service providers. The
development and enhancement of such complex software entails substantial risks
of product defects. The Company has in the past identified software defects in
certain of its products. There can be no assurance that errors will not be found
in existing or new products or releases after commencement of commercial
licensing, which may result in delay or loss of revenues, loss of market share,
failure to achieve market acceptance, or may otherwise adversely impact the
Company's business, operating results, and financial condition.

IMPLEMENTATION RISKS

         As is characteristic of companies providing software solutions to the
telecom industry, the complexities involved in implementing the Company's
software solutions entail risks of performance shortfalls. In some cases, the
Company has agreed to accept some financial responsibility, in the form of
negotiated penalty amounts, if the Company's products did not meet
specifications or caused customer system downtime. There can be no assurance
that the Company will not encounter delays or other difficulties due to such
implementation complexities. Because the Company's customer base consists of a
relatively limited number of customers, the product defects or implementation
errors would be potentially damaging to the Company's reputation. Any such
occurrence could have a material adverse effect upon the Company's business,
operating results, and financial condition.

INTERNATIONAL SALES

         To date, a significant portion of the Company's revenues have been
generated outside of the United States. The Company expects that international
revenues will continue to account for a significant portion of its total
revenues in future periods. The Company intends to penetrate additional
international markets and to further expand its existing international
operations. The Company's international business involves a number of inherent
risks, including greater difficulty in accounts receivable collection and,
therefore, longer accounts receivable collection periods; difficulty in staffing
and managing foreign operations; a longer sales cycle than with domestic
customers; potentially unstable political and economic conditions; language
barriers; cultural differences in the conduct of business; seasonality;
unexpected changes in regulatory requirements, including a slowdown in the rate
of privatization of telecom service providers; reduced protection for
intellectual property rights in some countries; potentially adverse tax
consequences; tariffs and other trade barriers. Access to foreign markets is
often difficult due to the established relationships between government owned or
controlled communications companies and local suppliers of communications
products. There can be no assurance that the Company will be able to
successfully penetrate such foreign markets. In addition, there can be no
assurance that the Company will be able to sustain or increase revenues derived
from international licensing and services or that the foregoing factors will not
have a material adverse effect on the Company's future international business,
and consequently, on the Company's business, operating results, and financial
condition.

         International sales also entail risks associated with currency
fluctuations. The Company has attempted to reduce the risk of fluctuations in
currency exchange rates associated with international revenues by pricing its
products and services in United States dollars whenever possible. The Company,
however, generally pays the expenses of its international operations in local
currencies and generally does not engage in hedging transactions with respect to
such obligations. Upward fluctuations in currency exchange rates could cause the
Company's products to become relatively more expensive to foreign customers,
leading to a reduction in sales or profitability. Furthermore, future
international

                                       14
<PAGE>
                                TCSI CORPORATION

activity may result in foreign currency denominated sales, and, in such event,
gains and losses on the conversion to U.S. dollars of accounts receivable and
accounts payable arising from international operations may contribute to
fluctuations in the Company's operating results. In order to reduce the risk of
exchange rate losses from foreign currency denominated sales, which historically
have not been material, the Company has engaged in a limited quantity of hedging
transactions. There can be no assurance that such hedging transactions will not
have a material adverse effect on the Company's business, operating results, and
financial condition.

DEPENDENCE ON TELECOMMUNICATIONS CARRIERS; GOVERNMENT REGULATION

         Many of the Company's principal customers are major telecom carriers.
Such companies operate within the telecom industry, which has recently been
characterized by intense competition in the development of new technology,
equipment, and customer services. The Company believes that large telecom
carriers have become increasingly cautious in making significant capital
expenditures, due in part to increased competition from smaller, rapidly
developing alternative carriers, decreasing prices for telecom services and
equipment, and regulatory rate structures that have become less dependent on the
level of carriers' capital expenditures. These and other factors have in the
past and may in the future cause such customers to experience significant
fluctuations in capital expenditures for network management software solutions.

         The telecom industry is subject to extensive regulation in the United
States and other countries, and the Company's customers generally must receive
regulatory approvals in conducting their businesses. Although the telecom
industry has been characterized by government deregulation, there can be no
assurance that deregulatory trends will continue or that reregulation will not
occur. Government regulatory policies are likely to continue to have a major
impact on the Company's ability to attract and retain customers. For example,
regulatory authorities may continue to oversee the pricing of new and existing
telecom services, which, in turn impact carriers' ability to make significant
capital expenditures. The enactment by federal, state, or foreign governments of
new laws or regulations or change in the interpretation of existing regulations
could adversely affect the Company's customers, and thereby affect the Company's
business, operating results, and financial condition.

COMPETITION

         The Company offers products and services in the evolving market for
telecom software. The telecom industry is intensely competitive, subject to
extremely rapid technological change and is characterized by evolving industry
standards, changing regulatory requirements, frequent product introductions and
rapid changes in customer requirements. These market factors represent both an
opportunity and a competitive threat to TCSI. The rapid pace of technological
change continually creates new opportunities for existing and new competitors.

         The Catalant product line competes in the equipment manufacturer and
service provider markets, offering solutions for next generation telecom
applications and platforms, while the WorldWin product line competes in the
emerging service provider market, by offering integrated OSS and billing data
mediation solutions. The Company competes with numerous vendors in each product
category. TCSI expects that the overall number of competitors providing next
generation network solutions will increase due to the market's attractive
growth. On the other hand, the Company expects the number of vendors supplying
OSS solutions for basic telephone services solutions will decrease, due to
maturity of this market and the rapid introduction of more cost-effective
technologies.

         TCSI's competitors include Dorado Software, Objective Systems
Integrators, Hewlett Packard and MicroMuse for the Catalant product line, and
Eftia OSS Solutions, Objective Systems Integrators, Telcordia, Hewlett Packard
and MetaSolv for the WorldWin product line. Some of the Company's competitors
compete across both TCSI's product lines, while others do not offer as wide a
breadth of solutions. Several of the Company's current and potential competitors
have greater financial, marketing and technical resources than the Company. The
principal competitive factors in the markets in which the Company presently
competes and may compete in the future are quality, price, performance, customer
support, corporate reputation, and product features such as scalability,
interoperability, functionality, customizability, and ease of use.

                                       15
<PAGE>
                                TCSI CORPORATION

         The Company also faces competition in each of the three functional
areas that the Company believes are necessary for the delivery of network
management software solutions: development environments, turnkey applications,
and custom services. The Company's Catalant and WorldWin product lines enable
the Company to provide its customers with development environments and turnkey
applications. Because certain of the Company's competitors focus only on one
functional area, such competitors may be in a position to develop competitive
products targeted solely at the segment they serve.

         There can be no assurance that the Company's current or potential
competitors will not develop products comparable or superior to those developed
by the Company or adapt more quickly than the Company to new technologies,
evolving industry standards, new product introductions or changing customer
requirements.

RAPID TECHNOLOGICAL CHANGE; NEED TO MANAGE PRODUCT TRANSITIONS

         The market for the Company's products is characterized by rapidly
changing technologies, evolving industry standards, changing regulatory
environments, frequent new product introductions, and rapid changes in customer
requirements. The introduction of products embodying new technologies and the
emergence of new industry standards and practices can render existing products
obsolete and unmarketable. As a result, the life cycles of the Company's
products are difficult to estimate. This poses substantial risks for the Company
because the Company's products and software solutions typically have lengthy
development and sales cycles. The Company's future success will depend on its
ability to enhance its existing products and to develop and introduce, on a
timely and cost-effective basis, new products and product features that keep
pace with technological developments and emerging industry standards and address
the evolving needs of its customers. There can be no assurance that the Company
will be successful in developing and marketing new products or product features
that respond to technological change or evolving industry standards, that the
Company will not experience difficulties that could delay or prevent the
successful development, introduction, and marketing of these new products and
features, or that its new products or product features will adequately meet the
requirements of the marketplace and achieve market acceptance. If the Company is
unable, for technological or other reasons, to develop and introduce
enhancements of existing products or new products in a timely manner, the
Company's business, operating results, and financial condition will be
materially adversely affected.

         The Company's products are designed to operate on a variety of hardware
and software platforms and with a variety of databases employed by its customers
in their networks. The Company must continually modify and enhance its products
to keep pace with changes in hardware and software platforms and database
technology. As a result, uncertainties related to the timing and nature of new
product announcements, and introductions or modifications by systems vendors and
by vendors of relational database software could materially adversely impact the
Company's business, operating results, and financial condition. In addition, the
failure of the Company's products to operate across the various existing and
evolving versions of hardware and software platforms and database environments
employed by consumers would have a material adverse effect on the Company's
business, operating results, and financial condition.

         The introduction or announcement of products by the Company or one or
more of its competitors embodying new technologies, or changes in industry
standards or customer requirements, could render the Company's software products
and solutions obsolete or unmarketable. The introduction of new or enhanced
versions of its products requires the Company to manage the transition from
older products in order to minimize disruption in customer ordering. There can
be no assurance that the introduction or announcement of new product offerings
by the Company or one or more of its competitors will not cause customers to
defer licensing of existing Company products or engaging the Company's services.
Any deferral of license or service revenues could have a material adverse effect
on the Company's business, operating results, and financial condition.

PROTECTION OF INTELLECTUAL PROPERTY

         The Company's success and ability to compete is dependent in part upon
its proprietary software technology. The Company relies on a combination of
patent, trade secret, copyright and trademark laws, nondisclosure and other

                                       16
<PAGE>
                                TCSI CORPORATION

contractual agreements, and technical measures to protect its proprietary
rights. To date, the Company has eight patents. The Company expects to continue
to file patent applications where it believes it is appropriate to protect its
proprietary technologies. Despite the Company's efforts to protect its
proprietary rights, unauthorized parties may attempt to copy aspects of the
Company's products or to obtain and use information that the Company regards as
proprietary. There can be no assurance that the steps taken by the Company to
protect its proprietary technology will prevent misappropriation of such
technology, and such steps may not preclude competitors from developing products
with functionality or features similar to the Company's products. In addition,
effective patent, copyright, trademark, and trade secret protection may be
unavailable or limited in certain foreign countries. The failure of the Company
to protect its proprietary information could have a material adverse effect on
the Company's business, operating results, and financial condition.

         While the Company believes that its products and trademarks and their
use by customers does not infringe upon the proprietary rights of third parties,
there can be no assurance that the Company will not receive future
communications from third parties asserting that the Company's products or their
use by customers infringe, or may infringe, the proprietary rights of such third
parties. The Company expects that software product developers will be
increasingly subject to infringement claims as the number of products and
competitors in the Company's industry segment grows and the functionality of
products in different industry segments overlaps. Any such claims, including
meritless claims, could result in costly, time-consuming litigation, and
diversion of technical and management personnel. In the event any third party
was to make a valid claim and a license was not made available on commercially
reasonable terms, or if the Company was unable to develop non-infringing
alternative technology, the Company's business, operating results, and financial
condition could be materially adversely affected.

         In addition, certain of the Company's customers regard the solutions
provided by the Company to be proprietary to such customers and may attempt to
prohibit the Company from using or otherwise benefiting from certain of the
advances made in developing such solutions. Although the Company intends to
increasingly standardize its integration solutions through the use of
component-based software products, there can be no assurance that the
prohibition or restrictions imposed by certain customers on the use of certain
intellectual property will not adversely affect the Company's business,
operating results, and financial condition.

         The Company relies on certain software that it licenses from third
parties, including software that is integrated with internally developed
software and used in the Company's products to perform key functions. There can
be no assurance that these third party software licenses will continue to be
available to the Company on commercially reasonable terms or that such licenses
will not be terminated. Although the Company believes that alternative software
is available from other third-party suppliers, the loss of or inability to
maintain any of these software licenses or the inability of the third parties to
enhance their products in a timely and cost-effective manner could result in
delays or reductions in product shipments by the Company until equivalent
software could be developed internally or identified, licensed, and integrated,
which would have a material adverse effect on the Company's business, operating
results, and financial condition.

DEPENDENCE ON KEY PERSONNEL

         The Company's future growth and success depends to a significant extent
on its ability to attract and retain qualified managerial, sales, and software
engineering personnel. The Company has at times experienced and continues to
experience difficulty in attracting and retaining qualified personnel. The
Company's future success will also depend on the ability of its current and
future management personnel to operate effectively, both independently and as a
group. The Company has experienced changes in its executive management. For
example, as a result of the resignation, in December 1999, of the President and
Chief Executive Officer, the Company is currently recruiting to fill that
vacancy. Competition for the hiring of such personnel in the software industry
is intense, and there can be no assurance that the Company will be successful in
locating candidates with appropriate qualifications. Failure to attract and
retain key personnel could have a material adverse effect on the Company's
business, operating results, and financial condition.

                                       17
<PAGE>
                                TCSI CORPORATION

RISKS ASSOCIATED WITH ACQUISITIONS

         The Company periodically evaluates potential acquisitions of
complementary businesses, products, and technologies. To support its growth
plans, the Company may acquire companies that have a significant installed base
of products not yet offered by the Company, have strategic distribution channels
or customer relationships, or otherwise present opportunities which management
believes enhance the Company's competitive position.

         Such acquisitions could subject the Company to numerous risks,
including risks associated with the integration into the Company of new
employees and technology. Moreover, the negotiation and acquisition of such
transactions involves the diversion of substantial management resources and the
evaluation of such opportunities requires substantial diversion of engineering
and technological resources. In addition, transactions involving the issuance by
the Company of common stock or other securities could result in immediate and
substantial dilution to the Company's existing shareholders, large one-time
write-offs, or the creation of goodwill or other intangible assets that could
result in amortization expenses. The failure to successfully evaluate, negotiate
and effect acquisition transactions could have a material adverse effect on the
Company's business, operating results and financial condition.

VOLATILITY OF STOCK PRICE

         The market price of the shares of the Company's Common Stock has been
and is likely to continue to be highly volatile and may be significantly
affected by factors such as actual or anticipated fluctuations in the Company's
business, operating results and financial condition, announcements of
technological innovations, new products, or new contracts by the Company or its
competitors, developments with respect to proprietary rights, adoption of new
accounting standards affecting the software industry, general market conditions
and other factors. Due to the foregoing factors, it is likely that the Company's
revenues or operating results will be below the expectations of public market
analysts and investors in some future period. In such event, the price of the
Company's Common Stock could be materially adversely affected. In addition, the
stock market from time to time has experienced significant price and volume
fluctuations that have particularly affected the market prices of technology
company stocks. These types of broad market fluctuations may adversely affect
the market price of the Company's Common Stock. In the past, following periods
of volatility in the market price of a company's securities, securities class
action litigation has often been initiated against such company. Such litigation
could result in substantial costs and a diversion of management's attention and
resources, which could have a material adverse effect upon the Company's
business, operating results, and financial condition.

YEAR 2000 COMPLIANCE

         The Company has experienced no disruptions in its information systems
or products for the six months ended June 30, 2000, and believes those systems
and products successfully responded to the Year 2000 date change.

ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

    INTEREST RATE RISK. As of June 30, 2000, the Company's cash and investment
portfolio includes only fixed-income securities. These securities are subject to
interest rate risk and will decline in value if interest rates increase. Due to
the short duration of the Company's investment portfolio, an immediate 100 basis
point increase or decrease in interest rates would not have a material effect on
the fair market value of the Company's portfolio. The Company has the ability to
hold its fixed income investments until maturity, and therefore the Company
would not expect its operating results or cash flows to be affected to any
significant degree by the effect of a sudden change in market interest rates in
its investment portfolio.

     FOREIGN CURRENCY EXCHANGE RISK. The majority of the Company's revenues are
denominated in U.S. dollars and, as a result, the Company has relatively little
exposure to foreign currency exchange risk. The Company does not use derivative
financial instruments for trading or speculative purposes.

                                       18
<PAGE>

PART II - OTHER INFORMATION


ITEM 4.  SUBMISSION OF MATTERS TO VOTE OF SECURITY HOLDERS

    An annual meeting of shareholders was held at the Company's headquarters in
Alameda, California, on May 11, 2000. The following matters were voted upon by
the shareholders:

    1) The following persons, who were the only nominees for directors, were
re-elected as directors of the Company to hold office until the next annual
meeting or until their respective successors are elected or appointed and
received the following number of votes:

                                        For                   Withheld
                                -------------------      ------------------
   John C. Bolger                   21,232,210                 254,600
   Norman E. Friedmann, Ph.D.       21,232,210                 254,600
   Donald Green                     21,232,210                 254,600
   William A. Hasler                21,232,210                 254,600

     2) A proposal to ratify the appointment of Ernst & Young LLP as independent
auditors for the Company for the fiscal year ending December 31, 2000 was
approved by the shareholders. The following votes were cast as to such proposal:
For: 21,302,684; Against: 139,660; Abstain: 44,466.

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

(a)      The following exhibits are filed herewith:

      EXHIBIT NO.           DESCRIPTION

         27.1           Financial Data Schedule

See Exhibit Index on page 21.

(b)      Reports on Form 8-K.

         There were no reports on Form 8-K filed during the quarter ended June
30, 2000.

                                       19
<PAGE>

                                TCSI CORPORATION

                                   SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized, on August 10, 2000.

                                TCSI CORPORATION
                                (Registrant)


                                By   /s/ ARTHUR H. WILDER
                                     ------------------------------------------
                                Arthur H. Wilder
                                Chief Financial Officer, Secretary, and
                                Treasurer (Principal Financial Officer and
                                Principal Accounting Officer)



                                       20
<PAGE>

                                INDEX OF EXHIBITS

  EXHIBIT NO.

                                  DESCRIPTION

--------------      ------------------------------------------------------------
    27.1            Financial Data Schedule



                                       21