UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C.  20549  FORM 10-Q  (Mark One)(X)
     QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the quarterly period endedMarch 31, 2011or(  )
     TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934For the transition period from________________ to ________________
  Commission file number:0-10394DATA I/O CORPORATION(Exact name of registrant as specified in its charter)Washington
     91-0864123(State or other jurisdiction of incorporation)
     (I.R.S. Employer Identification No.)6464 185th Ave NE, Suite 101, Redmond, Washington, 98052(425) 881-6444(Address, including zip code, of registrants principle executive offices and 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.  YesXNo __ Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes __ No __ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See the definitions of large accelerated filer, accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act. Large accelerated filer __  Accelerated filer __  Non-accelerated filer __  Smaller reporting companyX Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes  __ NoX  Shares of Common Stock, no par value, outstanding as of April 28, 2011:  9,042,031 1


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DATA I/O CORPORATIONFORM 10-QFor the Quarter Ended March 31, 2011INDEXPart I.
     
     Financial Information
     PageItem 1.
     Financial Statements
     3Item 2.
     Managements Discussion and Analysis of Financial Condition and Results of Operations
     12Item 3.
     Quantitative and Qualitative Disclosures About Market Risk
     18Item 4.
     Controls and Procedures
     18Part II
     
     Other InformationItem 1.
     Legal Proceedings
     19Item 1A.
     Risk Factors
     19Item 2.
     Unregistered Sales of Equity Securities and Use of Proceeds
     19Item 3.
     Defaults Upon Senior Securities
     19Item 4.
     [Removed and Reserved]
     19Item 5.
     Other Information
     19Item 6.
     Exhibits
     19Signatures
     
     21
 2


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PART I - FINANCIAL INFORMATION  Item 1.Financial Statements  DATA I/O CORPORATIONCONSOLIDATED BALANCE SHEETS(in thousands, except share data)(unaudited)March 31,
2011
     
     December 31,
2010ASSETSCURRENT ASSETS:Cash and cash equivalents
     $                   19,024
     
     $                   18,942Trade accounts receivable, net of allowance for
          doubtful accounts of $137 and $138, respectively
     5,527
     
     4,975Inventories
     3,541
     
     3,570Other current assets
     400
     
     528TOTAL CURRENT ASSETS
     28,492
     
     28,015Property, plant and equipment  net
     1,185
     
     1,256Other assets
     100
     
     153TOTAL ASSETS
     $                   29,777
     
     $                   29,424LIABILITIES AND STOCKHOLDERS EQUITYCURRENT LIABILITIES:Accounts payable
     $                     1,146
     
     $                     1,234Accrued compensation
     960
     
     1,578Deferred revenue
     1,553
     
     1,572Other accrued liabilities
     958
     
     770Accrued costs of business restructuring
     -
     
     58Income taxes payable
     91
     
     108Current portion long-term debt
     57
     
     92TOTAL CURRENT LIABILITIES
     4,765
     
     5,412Long-term other payables
     217
     
     47COMMITMENTSSTOCKHOLDERS EQUITYPreferred stock -Authorized, 5,000,000 shares, including
                                     200,000 shares of Series A Junior ParticipatingIssued and outstanding, none
     -
     
     -Common stock, at stated value -Authorized, 30,000,000 sharesIssued and outstanding, 9,034,531
                                    and 9,027,867 shares
     22,271
     
     22,172Accumulated earnings
     1,432
     
     900Accumulated other comprehensive  income
     1,092
     
     893TOTAL STOCKHOLDERS EQUITY
     24,795
     
     23,965TOTAL LIABILITIES AND STOCKHOLDERS EQUITY
     $                   29,777
     
     $                   29,424See notes to consolidated financial statements
 3


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DATA I/O CORPORATIONCONSOLIDATED STATEMENTS OF OPERATIONS(in thousands, except per share amounts)(UNAUDITED)Three Months Ended
March 31,2011
     
     2010Net Sales
     
     $                    7,043
     
     $                6,252Cost of goods sold
     
     2,879
     
     2,499Gross margin
     
     4,164
     
     3,753Operating expenses:Research and development
     
     1,352
     
     950Selling, general and administrative
     
     2,172
     
     1,938Total operating expenses
     
     3,524
     
     2,888Gain on sale of assets
     
     -
     
     3Operating income
     
     640
     
     868Non-operating income (expense):Interest income
     
     13
     
     2Interest expense
     
     -
     
     (3)Foreign currency transaction gain (loss)
     
     (35)
     
     (56)Total non-operating income (loss)
     
     (22)
     
     (57)Income before income taxes
     
     618
     
     811Income tax  expense
     
     (86)
     
     (102)Net income
     
     $                      532
     
     $                   709Basic earnings per share
     
     $                      0.06
     
     $                    0.08Diluted earnings per share
     
     $                      0.06
     
     $                    0.08Weighted-average basic shares
     
     9,031
     
     8,959Weighted-average diluted shares
     
     9,234
     
     9,080See notes to consolidated financial statements
 4


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DATA I/O CORPORATIONCONSOLIDATED STATEMENTS OF CASH FLOWS(in thousands)(UNAUDITED)Three Months Ended
March 31,2011
     
     2010CASH FLOWS FROM OPERATING ACTIVITIES:Net income
     
     $                             532
     
     $                            709Adjustments to reconcile income 
 to net cash provided by (used in) operating activities:Depreciation and amortization
     
     201
     
     290Gain on sale of assets
     
     -
     
     (3)Equipment transferred to cost of goods sold
     
     22
     
     158Share-based compensation
     
     87
     
     75Net change in:Trade accounts receivable
     
     (407)
     
     (1,591)Inventories
     
     56
     
     161Other current assets
     
     140
     
     84Accrued cost of business restructuring
     
     -
     
     (25)Accounts payable and accrued liabilities
     
     (573)
     
     299Deferred revenue
     
     (69)
     
     316Other long-term liabilities
     
     125
     
     -Deposits and other long-term assets
     
     58
     
     (1)Net cash provided by (used in) operating activities
     
     172
     
     472CASH FLOWS FROM INVESTING ACTIVITIES:Additions to property, plant and equipment
     
     (152)
     
     (368)Net proceeds from sale of assets
     
     -
     
     3Cash provided by (used in) investing activities
     
     (152)
     
     (365)CASH FLOWS FROM FINANCING ACTIVITIES:Proceeds from issuance of common stock under plans
     
     11
     
     15Payment of capital lease obligation
     
     (35)
     
     (32)Cash provided by (used in) financing activities
     
     (24)
     
     (17)Increase (decrease) in cash and cash equivalents
     
     (4)
     
     90Effects of exchange rate changes on cash
     
     86
     
     (48)Cash and cash equivalents at beginning of period
     
     18,942
     
     15,642Cash and cash equivalents at end of period
     
     $                         19,024
     
     $                         15,684See notes to consolidated financial statements
        5


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DATA I/O CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)  NOTE 1 - FINANCIAL STATEMENT PREPARATION  Data I/O prepared the financial statements as of and for the three months ended March 31, 2011 and March 31, 2010 according to the rules and regulations of the Securities and Exchange Commission ("SEC"). These statements are unaudited but, in the opinion of management, include all adjustments (consisting of normal recurring adjustments and accruals) necessary to present fairly the results for the periods presented.  The balance sheet at December 31, 2010 has been derived from the audited financial statements at that date.  We have condensed or omitted certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America according to such SEC rules and regulations.  Operating results for the three months ended March 31, 2011 are not necessarily indicative of the results that may be expected for the year ending December 31, 2011.These financial statements should be read in conjunction with the annual audited financial statements and the accompanying notes included in the Company's Form 10-K for the year ended December 31, 2010.  Revenue Recognition  Data I/O recognizes revenue at the time of shipment. When arrangements include multiple elements, we use objective evidence of selling price to allocate revenue to the elements and recognize revenue when the criteria for revenue recognition have been met for each element. The amount of revenue recognized is affected by our judgments as to the collectability of the transaction or whether an arrangement includes multiple elements and if so, whether specific objective evidence of selling price exists for those elements.   Effective January 1, 2011, under the provision of ASU 2009-13 Revenue Recognition (Topic 605), the allocation of  revenue is done on a pro-rata versus residual basis for the recognized revenue.  The revenue related to products requiring installation that is perfunctory is recognized at the time of shipment provided that persuasive evidence of an arrangement exists, shipment has occurred, the price is fixed or determinable, and collectability is reasonably assured.  Installation that is considered perfunctory includes any installation that can be performed by other parties, such as distributors, other vendors, or in most cases the customers themselves. This takes into account the complexity, skill, and training needed as well as customer expectations regarding installation.  We measure the standalone selling price of the product versus the service installation value component by the amount paid to independent representative service groups or the amount of additional discount given to independent distributors to provide the service installation.  We record revenue from the sale of service and update contracts as deferred revenue and we recognize it on a straight-line basis over the contractual period, which is typically one year.  Service revenue from time and materials contracts and training services are recognized as services are performed.  We establish a reserve for sales returns based on historical trends in product returns and estimates for new items.  We have a stated return policy that customers can return standard products for any reason within 30 days after delivery, provided that the returned product is received in its original condition, including all packaging materials, for a refund of the price paid less a restocking charge of 30% of the total amount invoiced for the product returned, unless such restocking charge is waived by Data I/O.  On those occasions when we sell software separately, we recognize software revenue upon shipment provided that no significant obligations remain on our part, substantive acceptance conditions, if any, have been met and when the fee is fixed and determinable and when collection is deemed probable.  Certain fixed-price engineering services contracts that require significant production, modification, or customization of software, are accounted for using the percentage-of-completion method.  We use the percentage-of-completion method of accounting because it is the most accurate method to recognize revenue based on the nature and scope of certain of our fixed-price engineering services contracts; it is a better measure of periodic income results than other methods and it better matches revenue recognized with the cost incurred.  Percentage of completion is measured based primarily on input measures such as hours incurred to date compared to total estimated hours at completion, with consideration given to output measures, such as contract milestones, when applicable.  Significant judgment is required when estimating total hours and progress to completion on these arrangements, which determines the amount of revenue we recognize as well as whether a loss is recognized if expected to be incurred upon project completion.  Revisions to hour and cost estimates are incorporated in the period in which the facts that give rise to the revision become known.   6


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Stock-Based Compensation Expense  Data I/O measures and recognizes compensation expense as required for all share-based payment awards, including employee stock options and restricted stock awards, based on estimated fair values on the grant dates. Total share-based compensation for the three months ended March 31, 2011 and March 31, 2010 was $87,000 and $75,000, respectively.  Income Tax  Historically when accounting for uncertainty in income taxes, Data I/O has not incurred any interest or penalties associated with tax matters and no interest or penalties were recognized during the three months ended March 31, 2011. However, the Company has adopted a policy whereby amounts related to interest and penalties associated with tax matters are classified as general and administrative expense when incurred.  Data I/O has incurred net operating losses in certain past years.  We continue to maintain a valuation allowance for the full amount of the net deferred tax asset balance associated with our net operating losses, as sufficient uncertainty exists regarding our ability to realize such tax assets in the future. There was$100,000of unrecognized tax benefits related to uncertain tax positions and related valuation allowance as of March 31, 2011.  Tax years that remain open forexamination include 2007, 2008, 2009 and 2010in the United States of America. In addition,tax years from 1999 to 2006 may be subject to examination in the event that the Company utilizes the net operating losses or other carry forwards from those years in its currentor future tax returns.  Recent Accounting Pronouncements  In January 2010, the FASB issued ASU No. 2010-06,Fair Value Measurements and Disclosures(Topic 820): Improving Disclosures about Fair Value Measurements("ASU 2010-06"), which amends the disclosure guidance with respect to fair value measurements. Specifically, the new guidance requires disclosure of amounts transferred in and out of Levels 1 and 2 fair value measurements, a reconciliation presented on a gross basis rather than a net basis of activity in Level 3 fair value measurements, greater disaggregation of the assets and liabilities for which fair value measurements are presented and more robust disclosure of the valuation techniques and inputs used to measure Level 2 and 3 fair value measurements. ASU 2010-06 is effective for interim and annual reporting periods beginning after December 15, 2009, with the exception of the new guidance around the Level 3 activity reconciliations, which is effective for fiscal years beginning after December 15, 2010.  The impact of adoption of this standard had no financial effect on the accompanying condensed consolidated financial statements.  In October 2009, the FASB issued ASU No. 2009-13,Revenue Recognition (Topic 605): Multiple-Deliverable Revenue Arrangements(ASU 2009-13). It provides amendments to the criteria for separating consideration in multiple-deliverable arrangements. This standard establishes a selling price hierarchy for determining the selling price of a deliverable. The selling price used for each deliverable will be based on vendor-specific objective evidence if available, third-party evidence if vendor-specific objective evidence is not available, or estimated selling price if neither vendor-specific objective evidence nor third-party evidence is available. This standard also replaces the termfair valuein the revenue allocation guidance withselling priceto clarify that the allocation of revenue is based on entity-specific assumptions rather than assumptions of a market participant. It also eliminates the residual method of allocation and requires that arrangement consideration be allocated at the inception of the arrangements to all deliverables using the relative selling price method. This standard is effective prospectively for revenue arrangements entered into or materially modified in fiscal years beginning on or after June 15, 2010.  The impact of adoption of this standard had no material effect on the accompanying condensed consolidated financial statements.  In October 2009, the FASB issued ASU No. 2009-14,Software (Topic 985): Certain Revenue Arrangements That Include Software Elements(ASU 2009-14).  According to this update, tangible products containing software components and non-software components that function together to deliver the tangible products essential functionality are no longer within the scope of the software revenue guidance.  It provides additional guidance on how to determine which software, if any, relating to the tangible product also would be excluded from the scope of the software revenue guidance.  This standard shall be adopted in the same period using the same transition method as indicated in the update to revenue arrangements with multiple deliverables. The impact of adoption of this standard had no material effect on the accompanying condensed consolidated financial statements.  NOTE 2 - RECLASSIFICATIONS  Certain prior period balances may have been reclassified to conform to the presentation used in the current period.   7


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NOTE 3 - INVENTORIESInventories consisted of the following components:March 31,
2011
     
     December 31,
2010(in thousands)Raw material
     
     $                      2,226
     
     $                    2,098Work-in-process
     
     845
     
     772Finished goods
     
     470
     
     700Total Inventories
     
     $                      3,541
     
     $                    3,570
   NOTE 4  PROPERTY AND EQUIPMENT, NET  Property and equipment consisted of the following components: March 31,
2011
     
     December 31,
2010(in thousands)Leasehold improvements
     $                 396
     
     $                 396Equipment
     8,312
     
     8,2648,708
     
     8,660Less accumulated depreciation
     7,523
     
     7,404Property and equipment - net
     $              1,185
     
     $              1,256
   NOTE 5  BUSINESS RESTRUCTURING  We took restructuring actions in 2008 totaling $542,000, primarily severance-related, and additional actions in 2009 totaling $203,000 to flatten and streamline the organization, as well as reducing cost, by decreasing the size of our Board and abandoning a portion of our building space.  At March 31, 2011, all previous accrued restructure costs have been paid or eliminated as a result of our lease amendment in February 2011.  Restructuring
     
     Reserve
Balance
12/31/2009
     2010
Expense
     2010
Payments/
Write-Offs
     Reserve
Balance
12/31/2010
     2011
Expense
     2011
Payments/
Write-Offs
     Reserve
Balance
3/31/2011(in thousands)Downsizing US operations:Facility & other costs
     
     $           158
     $               -
     $           100
     $             58
     $               -
     $             58
     $               -Total
     
     $           158
     $               -
     $           100
     $             58
     $               -
     $             58
     $               -
 An analysis of the restructuring is as follows:   8


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NOTE 6  OTHER ACCRUED LIABILITIESOther accrued liabilities consisted of the following components:March 31,
2011
     
     December 31,
2010(in thousands)Product warranty
     $                         392
     
     $                       376Sales return reserve
     79
     
     66Other taxes
     371
     
     109Other
     116
     
     219Other accrued liabilities
     $                         958
     
     $                       770
  The changes in Data I/Os product warranty liability for the three months ending March 31, 2011 are as follows:  (in thousands)Liability, beginning balance
     
     $                         376Net expenses
     
     196Warranty claims
     
     (196)Accrual revisions
     
     16Liability, ending balance
     
     $                         392
  NOTE 7  OPERATING LEASE AND OTHER COMMITMENTS  Data I/O has purchase obligations for inventory and production costs as well as other obligations such as capital expenditures, service contracts, marketing, and development agreements. Arrangements are considered purchase obligations if a contract specifies all significant terms, including fixed or minimum quantities to be purchased, a pricing structure and approximate timing of the transaction. Most arrangements are cancelable without a significant penalty, and with short notice, typically less than 90 days. At March 31, 2011, the purchase and other obligations totaled $1,429,000.  Data I/O also has commitments under non-cancelable operating leases.  In February 2011, the company entered into an amended lease arrangement that reduced the amount of space leased in Redmond and extended the lease term through June 20, 2016.  These amended terms are included in the operating lease table below.  Future annual lease payments at March 31, 2011:  Operating Leases(in thousands)2011
     
     $                  5902012
     
     8722013
     
     8482014
     
     8482015
     
     796Thereafter
     
     343Total
     
     $               4,297
     9


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NOTE 8  CONTINGENCIES  As of March 31, 2011, Data I/O was not a party to any material pending legal proceedings, other than ordinary routine litigation incidental to the business.  NOTE 9  LONG-TERM DEBT  On September 27, 2006, the Company entered into a five year capital lease agreement in the amount of $591,145.  The imputed interest rate is 7.69%.  At March 31, 2011, scheduled maturities of the capital lease obligation for the years ending December 31 are as follows:  Long-Term Debt(in thousands)2011
     
     $                  592012
     
     -Total minimum lease payments
     
     $                  59Less:  Amount representing interest
     
     (2)Present value of capital lease obligation
     
     $                  57Current portion of long-term debt
     
     (57)Non-current portion of long-term debt
     
     $                     -
  NOTE 10  EARNINGS PER SHARE  Basic earnings per share is calculated based on the weighted average number of common shares outstanding during each period.  Diluted earnings per share is calculated based on these same weighted average shares outstanding plus the effect of potential shares issuable upon assumed exercise of stock options based on the treasury stock method.  Potential shares issuable upon the exercise of stock options are excluded from the calculation of diluted earnings per share to the extent their effect would be anti-dilutive.  The following table sets forth the computation of basic and diluted earnings per share: Three Months EndedMarch 31,
2011
     
     March 31,
2010(in thousands except per share data)Numerator for basic and diluted earnings per share:Net income
     $                532
     
     $                 709Denominator for basic earnings per share -weighted-average shares
     9,031
     
     8,959Employee stock options and awards
     203
     
     121Denominator for diluted earnings per share -adjusted weighted-average shares and
      assumed conversions of stock options
     9,234
     
     9,080Basic and diluted earnings per share:Total basic earnings per share
     $              0.06
     
     $                0.08Total diluted earnings per share
     $              0.06
     
     $                0.08
 10


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The computation for the three months ended March 31, 2011 and 2010 excludes 147,555 and 151,437 options, respectively, to purchase common stock, as their effect is anti-dilutive.  NOTE 11  SHARE-BASED COMPENSATION  The impact on our results of operations of recording share-based compensation for the three months ended March 31, 2011 and March 31, 2010, respectively, are as follows: Three Months EndedMarch 31,
2011
     
     March 31,
2010(in thousands)Cost of goods sold
     $                      9
     
     $                      7Research and development
     8
     
     7Selling, general and administrative
     70
     
     61Total share-based compensation
     $                    87
     
     $                    75Impact on net income per share:Basic and diluted
     ($0.01)
     
     ($0.01)
  The fair value of share-based awards for employee stock options was estimated using the Black-Scholes valuation model.  The following weighted average assumptions were used to calculate the fair value of stock options granted during the three months ended March 31, 2011: Risk-free interest rates
     
     1.42%Volatility factors
     
     0.56Expected life of the option in years
     
     4.00Expected dividend yield
     
     None
  No option grants occurred in the three months ended March 31, 2010.  At March 31, 2011, there remained approximately $671,117 of unamortized expected future compensation expense associated with unvested option grants and restricted stock awards, with a remaining weighted average amortization period of  2.41 years.  NOTE 12  COMPREHENSIVE INCOME (LOSS)  For the three months ended March 31, 2011 and March 31, 2010, total comprehensive income (loss) was comprised of the following: Three Months Ended(in thousands)
     March 31,
2011
     
     March 31,
2010Net income
     $                   532
     
     $                  709Foreign currency translation gain (loss)
     200
     
     (98)Total comprehensive income (loss)
     $                   732
     
     $                  611
 11


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NOTE 13  SUBSEQUENT EVENT  On April 29, 2011, Data I/O acquired software technology consisting of patents, software source code, and other intellectual property.  This software technology will be incorporated into new products currently in development and will be the basis for new software offering in adjacent market spaces.  The technology was purchased for $2 million in cash, $1 million in Data I/O common stock with an unregistered share legend, and a royalty of 4% of directly associated revenue for five years.  Item 2.Management's Discussion and Analysis of Financial Condition and Results of Operations  General  Forward-LookingStatements  This Quarterly Report on Form 10-Q includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995.  This Act provides a safe harbor for forward-looking statements to encourage companies to provide prospective information about themselves as long as they identify these statements as forward-looking and provide meaningful cautionary statements identifying important factors that could cause actual results to differ from the projected results.  All statements other than statements of historical fact made in this Quarterly Report on Form 10-Q are forward-looking.  In particular, statements herein regarding industry prospects or trends; expected revenues; expected level of expense; future results of operations, restructuring implications; breakeven point, or financial position; changes in gross margin; economic conditions and capital spending outlook; market acceptance of our newly introduced or upgraded products; the impact and integration of acquisitions; development, introduction and shipment of new products; and any other guidance on future periods are forward-looking statements.  Forward-looking statements reflect managements current expectations and are inherently uncertain.  Although Data I/O believes that the expectations reflected in these forward-looking statements are reasonable, we cannot guarantee future results, levels of activity, performance, achievements, or other future events.  Moreover, neither Data I/O nor anyone else assumes responsibility for the accuracy and completeness of these forward-looking statements.  Data I/O is under no duty to update any of these forward-looking statements after the date of this report.  The reader should not place undue reliance on these forward-looking statements.  The discussions above and in the section in Item 1A., Risk Factors Cautionary Factors That May Affect Future Results in the Companys Annual report on Form 10-K for the year ended December 31, 2010 describe some, but not all, of the factors that could cause these differences.  OVERVIEW  We continued to focus on our primary goal of managing the business to grow profits, while developing, launching and enhancing products to drive revenue and earnings growth.  Our challenge continues to be operating in a cyclical and rapidly evolving industry environment.  We are continuing our efforts to balance business geography shifts, increasing costs and strategic investments in our business with the level of demand and mix of business we expect.  On April 29, 2011, Data I/O acquired software technology consisting of patents, software source code, and other intellectual property.  This software technology will be incorporated into new products currently in development and will be the basis for new software offerings in adjacent market spaces.  We are focusing our research and development efforts in our strategic growth markets, namely new programming technology, software, and automated programming systems for the manufacturing environment.  We continue to focus on extending the capabilities and support for our FlashCORE architecture, and the ProLINE-RoadRunner, FLX, PS, and FlashPAK product lines, as well as new product initiatives.  Our applications innovation strategy provides complete solutions to target customers business problems.  These solutions generally have a larger software element, may involve third-party components, and in many cases, will be developed or customized to address the specific requirements of individual customers.  We believe by adding these features and applications to our strategic product platforms, we will be able to set ourselves apart from other product suppliers and elevate our relationships with our customers.  Our customer focus has been on strategic high volume manufacturers in key market segments like wireless, automotive, industrial controls and programming centers and supporting NAND Flash and microcontrollers on our newer products to gain new accounts.  We also provide product solutions used by electronics design engineers.  We continued to expand our China operations to take advantage of the growth of manufacturing in China and to operate close to our customers.  We continued to address the effectiveness of our sales and marketing organization and sales channels by adding and changing channels and providing our channel partners with extensive product, sales and service training.  We recognized the need to diversify our customer base and are continuing to take steps to broaden our channels of distribution and representation to reach a greater number of customers.  We believe these channel actions help us grow our business more rapidly, both by adding new customers and by increasing penetration of existing accounts. 12


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BUSINESSRESTRUCTURING  We took restructuring actions in 2008 totaling $542,000, primarily severance-related, and additional actions in 2009 totaling $203,000 to flatten and streamline the organization, as well as reducing cost, by decreasing the size of our Board and abandoning a portion of our building space.  At March 31, 2011, all previous accrued restructure costs have been paid or eliminated as a result of our lease amendment in February 2011.  cRITICALaCCOUNTINGpOLICYjUDGMENTS ANDeSTIMATES  The preparation of financial statements in accordance with accounting principles generally accepted in the United States of America requires that we make estimates and judgments, which affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent assets and liabilities.  On an on-going basis, Data I/O evaluates our estimates, including those related to revenue recognition, estimating the percentage-of-completion on fixed-price professional engineering service contracts, sales returns, bad debts, inventories, investments, intangible assets, income taxes, warranty obligations, restructuring charges, contingencies such as litigation, and contract terms that have multiple elements and other complexities typical in the capital equipment industry.  We base our estimates on historical experience and other assumptions that we believe are reasonable under the circumstances.  Actual results may differ from these estimates under different assumptions or conditions.  Data I/O believes the following critical accounting policies affect the more significant judgments and estimates used in the preparation of our financial statements:  Revenue Recognition:  Sales of Data I/Os semiconductor programming equipment are recognized at the time of shipment.  We have determined that our automated products have reached a point of maturity and stability such that product acceptance can be assured by testing at the factory prior to shipment and that the installation meets the criteria to be considered a separate element.  These systems are standard products with published product specifications and are configurable with standard options.  The evidence that these systems could be accepted was based upon having standardized factory production of the units, results from batteries of tests of product performance to our published specifications, quality inspections and installation standardization, as well as past product operation validation with customers and the history provided by our installed base of products upon which the current versions were based.   When arrangements include multiple elements, we use objective evidence of selling price to allocate revenue to the various elements and recognize revenue when the criteria for revenue recognition have been met for each element.  Effective January 1, 2011, under the provision of ASU 2009-13 Revenue Recognition (Topic 605), the allocation of  revenue is done on a pro-rata versus residual basis for the recognized revenue.  The amount of revenue recognized is affected by our judgments as to the collectability of the transaction or whether an arrangement includes multiple elements and if so, whether specific objective evidence of selling price exists for those elements.  The measure of standalone selling price of the product versus the service installation value component is determined by the amount Data I/O pays to independent representative service groups or the amount of additional discount given to independent distributors, to provide the service installation.  Changes to the elements in an arrangement and the ability to establish specific objective evidence for those elements could affect the timing of the revenue recognition.  These conditions could be subjective and actual results could vary from the estimated outcome.  Installation that is considered perfunctory includes any installation that can be performed by other parties, such as distributors, other vendors, or in most cases the customer themselves.  This takes into account the complexity, skill, and training needed as well as customer expectations regarding installation.  The revenue related to products requiring installation that is perfunctory is recognized at the time of shipment provided that persuasive evidence of an arrangement exists, shipment has occurred, the price is fixed or determinable, and collectability is reasonably assured.  We record revenue from the sale of service and update contracts as deferred revenue and we recognize it on a straight-line basis over the contractual period, which is typically one year.  Service revenue from time and materials contracts and training services is recognized as services are performed.  We recognize software revenue upon shipment provided that no significant obligations remain on our part, substantive acceptance conditions, if any, have been met and when the fee is fixed and determinable and when collection is deemed probable.  Certain fixed-price engineering service contracts that require significant production, modification, or customization of software, are accounted for using the percentage-of-completion method.  We use the percentage-of-completion method of accounting because it is the most accurate method to recognize revenue based on the nature and scope of our fixed-price professional engineering service contracts; it is a better measure of periodic income results than other methods and it better matches revenue recognized with the costs incurred.  Percentage of completion is measured based primarily on input measures such as hours incurred to date compared to total estimated hours to complete, with consideration given to output measures, such as contract milestones, when applicable.  Significant judgment is required when estimating total hours and progress to completion on these arrangements, which determines the amount of
 revenue we recognize as well as whether a loss is recognized if one is expected to be incurred upon project completion.  Revisions to hour and cost estimates are incorporated in the period the amounts are recognized if the results of the period have not been reported; otherwise, the revision of estimates are recognized in the period in which the facts that give rise to the revision become known. 13


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We establish a reserve for sales returns based on historical trends in product returns and estimates for new items.  Data I/O has a stated return policy that customers can return standard products for any reason within 30 days after delivery provided that the returned product is received in its original condition, including all packaging materials, for a refund of the price paid less a restocking charge of 30% of the total amount invoiced for the product returned, unless such restocking charge is waived in writing by Data I/O.  For us to recognize revenue, the price is fixed or determinable at the date of the sale, the buyer has paid or is obligated to pay and the obligation is not contingent on resale of the product, the buyers obligation would not be changed in the event of theft, physical destruction or damage to the product, the buyer acquiring the product for resale has economic substance apart from Data I/O and we have  no contractual obligations for future performance to directly bring about the resale of the product by the buyer.  Allowance for Doubtful Accounts: We base the allowance for doubtful accounts receivable on our assessment of the collectability of specific customer accounts and the aging of accounts receivable.  If there is deterioration of a major customers credit worthiness or actual defaults are higher than historical experience, our estimates of the recoverability of amounts due to us could be adversely affected.  Inventory: Inventories are stated at the lower of cost or market.  Adjustments are made to standard cost, which approximates actual cost on a first-in, first-out basis.  We estimate reductions to inventory for obsolete, slow-moving, excess and non-salable inventory by reviewing current transactions and forecasted product demand.  We evaluate our inventories on an item by item basis and record inventory adjustments accordingly.  If there is a significant decrease in demand for our products or there is a higher risk of inventory obsolescence because of rapidly changing technology and customer requirements, Data I/O may be required to increase our inventory adjustments and our gross margin could be adversely affected.  Warranty Accruals: Data I/O accrues for warranty costs based on the expected material and labor costs to fulfill our warranty obligations.  If we experience an increase in warranty claims, which are higher than our historical experience, our gross margin could be adversely affected.  Tax Valuation Allowances:  Given the uncertainty created by our loss history, as well as the current uncertain economic outlook for our industry and capital spending, Data I/O expects to continue to limit the recognition of net deferred tax assets and accounting for uncertain tax positions and maintain the tax valuation allowances.  We expect, therefore, that reversals of the tax valuation allowance will take place only as we are able to take advantage of the underlying tax loss or other attributes in carry forward.  The transfer pricing and expense or cost sharing arrangements are complex areas where judgments, such as the determination of arms-length arrangements, can be subject to challenges by different tax jurisdictions.  Share-based Compensation:  We account for share-based awards made to our employees and directors, including employee stock option awards and restricted and performance share awards, using the estimated grant date fair value method of accounting.  We estimate the fair value using the Black-Scholes valuation model, which requires the input of highly subjective assumptions, including the options expected life and the price volatility of the underlying stock.  The expected stock price volatility assumption was determined using the historical volatility of the Companys common stock.  Changes in the subjective assumptions required in the valuation model may significantly affect the estimated value of the awards, the related stock-based compensation expense and, consequently, our results of operations.  Beginning in the second quarter of 2006, restricted stock awards were granted.  Employee Stock Purchase Plan (ESPP) shares were issued under provisions that do not require us to record any equity compensation expense.  14


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Results of Operations  NetSales  Three Months EndedNet sales by product line
     
     March 31, 2011
     Change
     March 31, 2010(in thousands)Automated programming systems
     
     $           4,782
     14.8%
     $         4,166Non-automated programming systems
     
     2,261
     8.4%
     2,086Total programming systems
     
     $           7,043
     12.7%
     $         6,252Net sales by location
     
     March 31, 2011
     Change
     March 31, 2010(in thousands)United States
     
     $           529
     (20.6%)
     $          666% of total
     
     7.5%
     
     10.7%International
     
     $        6,514
     16.6%
     $       5,586% of total
     
     92.5%
     
     89.3%
  Revenue increased to $7.0 million for the first quarter of 2011, an increase of 12.7% compared to $6.3 million in the first quarter of 2010 and up sequentially compared to $6.9 million for the fourth quarter of 2010.  International sales represented 92.5% of total sales for the first quarter 2011.  Compared to the first quarter of 2010, we experienced a revenue increase of 101% in Asia and 6% in Europe, while revenue in the Americas decreased by 33%.  The Americas revenue declined primarily due to lower custom software sales and lower sales in Mexico.  We attribute the lower sales in Mexico primarily to the effect of violence that has taken place there.  Orders increased 3% in the first quarter of 2011 compared to the same period in 2010, with Asia up 88%, Europe up 17%, and the Americas down 47%.  The variation in sales percentages versus order percentages relates to the change in backlog and deferred revenues.  Backlog at the end of the quarter was $.9 million, down from $1.6 million at the start of the quarter, and from $1.1 million at the end of the first quarter of 2010.  Deferred revenue at both the start and end of the quarter was $1.6 million.  Our FlashPAK product line and adapter sales benefited from the increased demand in Asia.  Programming center related business resulted in good PS Family sales.  Three Months EndedMarch 31,
2011
     Change
     March 31,
2010(in thousands)Gross margin
     $      4,164
     11.0%
     $      3,753Percentage of net sales
     59.1%
     
     60.0%
  GrossMargin  Gross margins during the first quarter of 2011 increased in total dollars, due to increased sales volume, but decreased as a percentage of sales compared to the first quarter of 2010.  The decrease in gross margin percentage was primarily due to less favorable factory variances in the first quarter of 2011 compared to the first quarter of 2010.  15


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Research andDevelopment  Three Months EndedMarch 31,
2011
     Change
     March 31,
2010(in thousands)Research and development
     $      1,352
     42.3%
     $         950Percentage of net sales
     19.2%
     
     15.2%
   Research and development (R&D) spending for the first quarter of 2011 increased by approximately $402,000 compared to the first quarter of 2010, primarily due to the increased use of outside resources of $205,000 and materials of $126,000 to accelerate our growth initiatives.  We expect higher spending to continue for the next quarter as we continue to accelerate our growth initiatives, including spending related to our recent software technology purchase in April 2011.  S elling , G eneral and A dministrative Three Months EndedMarch 31,
2011
     Change
     March 31,
2010(in thousands)Selling, general & administrative
     $      2,172
     12.1%
     $      1,938Percentage of net sales
     30.8%
     
     31.0%
  Selling, general and administrative (SG&A) expenses increased approximately $234,000 for the first quarter of 2011 compared to the first quarter of 2010.  This was due primarily to increased use of outside professional consultants and contractors, higher compensation costs and higher incentive compensation based on financial results.  Our first quarter G&A is always seasonally higher due to the audit, Nasdaq fee and public reporting costs.  Interest  Three Months EndedMarch 31,
2011
     Change
     March 31,
2010(in thousands)Interest income
     $           13
     550.0%
     $             2Interest expense
     $              -
     
     $            (3)
  Interest income for the first quarter of 2011 and 2010 increased compared to the same period in 2010 due to higher cash balances.  Interest expense decreased for the three months ended March 31, 2011 compared to the same period in 2010 as a result of the lower balance on the equipment capital lease.  IncomeTaxes  Three Months EndedMarch 31,
2011
     Change
     March 31,
2010(in thousands)Income tax expense
     $              (86)
     (15.7%)
     $            (102)
  Income tax expense recorded for the first quarter of 2011 and 2010 resulted from foreign and state taxes.  The effective tax rate differed from the statutory tax rate primarily due to the effect of valuation allowances and state taxes.  Data I/O has a valuation allowance of $8,943,000 as of March 31, 2011.  Our deferred tax assets and valuation allowance are reduced by approximately $100,000 associated with the requirements of accounting for uncertain tax positions as of March 31, 2011. 16


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Financial Condition  Liquidity andCapitalResources  March 31,
2011
     Change
     December 31,
2010(in thousands)Working capital
     $      23,727
     $                 1,124
     $        22,603
  Our cash and cash equivalents increased by approximately $82,000 during the first quarter of 2011,  primarily due to earnings offset by cash used to pay year end 2010 incentive compensation and 401(k) matching accrued expenses.  Accounts receivable increased to $5.5 million from $5.0 million, due to the sales shipments taking place relatively late in the quarter.  Inventories decreased to $3.5 million at the end of the first quarter compared to $3.6 million at December 31, 2010.  We expect that we will continue to make capital expenditures to support our business.  Capital expenditures are expected to be funded by existing and internally generated funds or lease financing.  As a result of our significant product development, customer support, international expansion and selling and marketing efforts, we have required substantial working capital to fund our operations.  Over the last few years, we restructured our operations to lower our costs and operating expenditures in some geographic regions, while investing in other regions, and to lower the level of revenue required for our net income breakeven point, to preserve our cash position and to focus on profitable operations.  We believe that we have sufficient working capital available under our operating plan to fund our operations and capital requirements through at least the next one-year period.  Our working capital may be used to fund growth initiatives including acquisitions which could reduce our liquidity, such as the software technology purchase that used $2 million in cash and $1 million in unregistered stock on April 29, 2011.  Any substantial inability to achieve our current business plan could have a material adverse impact on our financial position, liquidity, or results of operations and may require us to reduce expenditures and/or seek additional financing.  Long-TermDebt  During the third quarter of 2006, the Company entered into a five-year capital lease agreement in the amount of $591,145.  The lease was used to fund new equipment and installation associated with our move to the new facility in July of 2006.  As of March 31, 2011 and December 31, 2010, there is no long-term debt line item, and the current portion of long-term debt is $57,000 and $92,000, respectively.  See Note 9, Long-Term Debt.  OFF-Balancesheetarrangements  Except as noted above in Note 7, Operating Lease and Other Commitments, Data I/O had no off-balance sheet arrangements.  RECENTACCOUNTINGPRONOUNCEMENTS  In January 2010, the FASB issued ASU No. 2010-06,Fair Value Measurements and Disclosures(Topic 820): Improving Disclosures about Fair Value Measurements("ASU 2010-06"), which amends the disclosure guidance with respect to fair value measurements. Specifically, the new guidance requires disclosure of amounts transferred in and out of Levels 1 and 2 fair value measurements, a reconciliation presented on a gross basis rather than a net basis of activity in Level 3 fair value measurements, greater disaggregation of the assets and liabilities for which fair value measurements are presented and more robust disclosure of the valuation techniques and inputs used to measure Level 2 and 3 fair value measurements. ASU 2010-06 is effective for interim and annual reporting periods beginning after December 15, 2009, with the exception of the new guidance around the Level 3 activity reconciliations, which is effective for fiscal years beginning after December 15, 2010.  The impact of adoption of this standard had no material effect on the accompanying condensed consolidated financial statements.  In October 2009, the FASB issued ASU No. 2009-13,Revenue Recognition (Topic 605): Multiple-Deliverable Revenue Arrangements(ASU 2009-13). It provides amendments to the criteria for separating consideration in multiple-deliverable arrangements. This standard establishes a selling price hierarchy for determining the selling price of a deliverable. The selling price used for each deliverable will be based on vendor-specific objective evidence if available, third-party evidence if vendor-specific objective evidence is not available, or estimated selling price if neither vendor-specific objective evidence nor third-party evidence is available. This standard also replaces the termfair valuein the revenue allocation guidance withselling priceto clarify that the allocation of revenue is based on entity-specific assumptions rather than assumptions of a market participant. It also eliminates the residual method of allocation and requires that arrangement consideration be allocated at the inception of the arrangements to all deliverables using the
 relative selling price method. This standard is effective prospectively for revenue arrangements entered into or materially modified in fiscal years beginning on or after June 15, 2010.  The impact of adoption of this standard had no material effect on the accompanying condensed consolidated financial statements. 17


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In October 2009, the FASB issued ASU No. 2009-14,Software (Topic 985): Certain Revenue Arrangements That Include Software Elements(ASU 2009-14).  According to this update, tangible products containing software components and non-software components that function together to deliver the tangible products essential functionality are no longer within the scope of the software revenue guidance.  It provides additional guidance on how to determine which software, if any, relating to the tangible product also would be excluded from the scope of the software revenue guidance.  This standard shall be adopted in the same period using the same transition method as indicated in the update to revenue arrangements with multiple deliverables. The impact of adoption of this standard had no material effect on the accompanying condensed consolidated financial statements.  Item 3.Quantitative and Qualitative Disclosures About Market Risk  Not applicable.  Item 4.Controls and Procedures  Evaluationofdisclosurecontrolsandprocedures  Under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, Data I/O evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) and Rule 15d-15(e) under the Exchange Act) as of the end of the period covered by this report (the Evaluation Date). Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that, as of the Evaluation Date, our disclosure controls and procedures were effective at the reasonable level of assurance. Disclosure Controls are controls and procedures designed to reasonably assure that information required to be disclosed in our reports filed under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the SECs rules and forms. Disclosure Controls are also designed to reasonably assure that such information is accumulated and communicated to our management, including the CEO and CFO, as appropriate to allow timely decisions regarding required disclosure.  Changesininternalcontrols  There were no changes made in our internal controls during the period covered by this report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.   18


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PART II - OTHER INFORMATION  Item 1.Legal Proceedings  From time to time, we may be involved in litigation relating to claims arising out of our operations in the normal course of business.  As of March 31, 2011, Data I/O was not a party to any material pending legal proceedings, other than ordinary routine litigation incidental to the business.  Item 1A.Risk Factors In addition to the other information set forth in this report, you should carefully consider the factors discussed in Part I, Item 1A. Risk Factors in our Annual Report on Form 10-K for the year ended December 31, 2010, which could materially affect our business, financial condition or future results. The risks described in our Annual Report on Form 10-K are not the only risks facing our Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results.  Other than the following item, there are no material changes to the Risk Factors described in our Annual Report: Our recent acquisition of assets may have an adverse effect on our business if we cannot develop products on a timely basis or advance our business strategy. We recently completed an acquisition of software technology assets and expect to invest resources to develop those assets.  Development of this software technology investment involves significant challenges and risks including that the transaction does not advance our business strategy; that we do not realize a satisfactory return on our investment; or that we experience difficulty in the integration of new employees, development of the software and technology, or diversion of managements attention from our other business.  These events could harm our operating results or financial condition. Item 2.Unregistered Sales of Equity Securities, Use of Proceeds  None  Item 3.Defaults Upon Senior Securities  None  Item 4.[Removed and Reserved]   Item 5.Other Information  None  Item 6.Exhibits  (a)Exhibits   3Articles of Incorporation:  3.2Data I/Os Second Amended and Restated Bylaws as of February 24, 2011 (Incorporated by   reference to Data I/Os Current Report on Form 8-K filed March 2, 2011).  10Material Contracts:  10.21Data I/Os Entry into Asset Purchase Agreement dated April 29, 2011, with the Miller Trust, for acquisition of Software Technology(Incorporated by reference to Data I/Os Current Report on Form 8-K filed May 3, 2011). 19


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31Certification  Section 302: 31.1Chief Executive Officer Certification 31.2Chief Financial Officer Certification  32Certification  Section 906: 32.1Chief Executive Officer Certification 32.2Chief Financial Officer Certification 20


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SIGNATURES   Pursuant to the requirements of Section 13 or 15(d) 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.    DATA I/O CORPORATION (REGISTRANT) DATED:   May 13, 2011   By: //S//Joel S. Hatlen Joel S. Hatlen Vice President - Finance Chief Financial Officer Secretary and Treasurer (Principal Financial Officer and Duly Authorized Officer)    By: //S//Frederick R. Hume Frederick R. Hume President Chief Executive Officer (Principal Executive Officer and Duly Authorized Officer)  21


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Exhibit 31.1 Section 302(a) of the Sarbanes-Oxley Act of 2002  I, Frederick R. Hume, certify that: 1)     I have reviewed this quarterly report on Form 10-Q of Data I/O Corporation; 2)     Based upon my knowledge, this report does not contain any untrue statement of material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report; 3)     Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report; 4)     The registrants other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f) for the registrant and have: a)     Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this quarterly report is being prepared; b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles; c)     Evaluated the effectiveness of the registrants disclosure controls and procedures and presented in this quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and d)    Disclosed in this quarterly report any change in the registrants internal control over financial reporting that occurred during the registrants most recent fiscal quarter (the registrants fourth fiscal quarter in the case of an annual report) that has materially affected or is reasonably likely to materially affect, the registrants internal control over financial reporting. 5)     The registrants other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrants auditors and the audit committee of registrants board of directors (or persons performing the equivalent functions): a)     All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrants ability to record, process, summarize and report financial information; and b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrants internal controls over financial reporting.  DATED:   May 13, 2011  /s/ Frederick R. Hume Frederick R. Hume Chief Executive Officer (Principal Executive Officer) 22


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Exhibit 31.2 Section 302(a) of the Sarbanes-Oxley Act of 2002  I, Joel S. Hatlen, certify that: 1)     I have reviewed this quarterly report on Form 10-Q of Data I/O Corporation; 2)     Based upon my knowledge, this report does not contain any untrue statement of material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report; 3)     Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report; 4)     The registrants other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f) for the registrant and have: a)     Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this quarterly report is being prepared; b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purpose in accordance with generally accepted accounting principles; c)     Evaluated the effectiveness of the registrants disclosure controls and procedures and presented in this quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and d)    Disclosed in this quarterly report any change in the registrants internal control over financial reporting that occurred during the registrants most recent fiscal quarter (the registrants fourth fiscal quarter in the case of an annual report) that has materially affected or is reasonably likely to materially affect, the registrants internal control over financial reporting. 5)    The registrants other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrants auditors and the audit committee of registrants board of directors (or persons performing the equivalent functions): a)     All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrants ability to record, process, summarize and report financial information; and b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrants internal controls over financial reporting.  DATED:   May 13, 2011  /s/ Joel S. Hatlen Joel S. Hatlen Chief Financial Officer (Principal Financial Officer)  23


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Exhibit 32.1  Certification by Chief Executive Officer Pursuant to 18 U.S.C. Section 1350 As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002  In connection with the quarterly report of Data I/O Corporation (the Company) on Form 10-Q for the period ended March 31, 2011 as filed with the Securities and Exchange Commission on the date hereof (the Report), I, Frederick R. Hume, Chief Executive Officer of the Company, certify, that pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:  (1)                                   The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 as amended; and (2)                                   The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.   /s/ Frederick R. Hume Frederick R. Hume Chief Executive Officer (Principal Executive Officer) May 13, 2011      24


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Exhibit 32.2  Certification by Chief Financial Officer Pursuant to 18 U.S.C. Section 1350 As Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002  In connection with the quarterly report of Data I/O Corporation (the Company) on Form 10-Q for the period ended March 31, 2011 as filed with the Securities and Exchange Commission on the date hereof (the Report), I, Joel S. Hatlen, Chief Financial Officer of the Company, certify, that pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:  (1)                                   The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 as amended; and (2)                                   The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.   /s/ Joel S. Hatlen Joel S. Hatlen Chief Financial Officer (Principal Financial Officer) May 13, 2011   25


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