HDTenEightyP/NetNews huggingface dataset:
From: daw@vivanet.com (David A. Wolf)
Subject: Re: Unfunctionality of Sperry 5000/?? ; please help
Organization: VIVATRON Corporation 
Date: Mon, 23 Nov 1992 03:47:17 GMT
Followup-To: daw@vivanet.com
Summary: Motherboard problems
Keywords: Sperry

In article <1992Nov17.221402.18922@ousrvr.oulu.fi> costello@tolsun.oulu.fi (Antti Jarvinen) writes:
>A friend of mine invested some money to a sperry 5000/??? computer.
>It runs Sys Vr2.1 and has a tape drive installed. A few days it
>worked well and then came a problems: after power-up it gives
>following information:
>LOG TASK = SSKE,0
>ERROR CODE 1 = $0109
>AUTO TEST SEQUENCE
>TEST: IVT TOD EDC MMU MEM HIO 
                            ^------i/o card
>LOG TASK = HIO0,0
               ^----refers to the first i/o card
>ERROR CODE 1 = $C00A
>
[stuff deleted]
>
>What could be broken? As far as I can remember the problem appeared
>when a rs-cable between console-terminal and that machine was
>accidentally pulled off from the plug when machine was up and running ..
>after that the machine didn't ever boot again :-(
>I can't see how a broken rs-cable could cause something to break down
>in a computer - can it break something?
>That machine claims that I/O-controller is broken - if it is, who
>would like to sell us new one ? :-)
>--
>Antti Jaervinen, costello@tolsun.oulu.fi, costello@muikku.pulp.nullnet.fi

YOUR HPSIO (High Performance Serial I/O Card is apparently not
passing the self-diag.  

Before I you go out and buy a new one, TRY reseeding ALL the
cards.  The backplane may be the source of your problems.

As one of the few surviving Unisys dealers in my area, I happen
to have 5000 series parts IN-STOCK.  Let me know if I can help.

-good luck....

David A. Wolf                               Toll: 716-272-0820
VIVATRON Corporation                        Free: 800-836-UNIX
Rochester, New York, USA                     Fax: 716-272-7627
SCO Advanced Product Center                email: daw@vivanet.com
*****************************************************************
Newsgroups: comp.sys.unisys
Subject: Re: Burroughs B20
From: MPA15AB!RANDY@TRENGA.tredydev.unisys.com
Date: 20 Nov 92 23:48:00 GMT
Organization: C-S-U Gateway

This was posted by someone internal to Unisys, with the intent that it appear
in the news group.  (We are having some difficulties with automatically
sending items to the news group.)  So, I am forwarding this manually.

-------  Forwarded message -------

Relay-Version: version 40.109.8019; site MPA6DE.Unisys
Posting-Version: version 40.109 11/04/92; site MPA6DE.Unisys
Date: Thu, 19 Nov 1992 3:33 pm PST (23:33:35 UT)
From: Samuel S. TAN (Mission_Viejo) <SAMTAN @ MPA6DE>
Newsgroups: ext.comp.sys.unisys
Subject: 2Re: Burroughs B20
Followup-to: general.discussion

I am gratified by so much interest in the B2X from non-Unisys
people.  It is a wonderful machine with a lot of ahead-of-its-times
innovations.  I worked with them since 1979 and had lots of success
marketing it in the Far East.  It had the clustering and multi-tasking
long before LAN & OS/2 were even conceived. It had context manager
with windows long before WINDOWS. It had protected memory mode since 1985.
CTOS integrated printer device drivers with Generic Print System (much
like what MS Windows is trying to do now) since 1987.  It has an
extensive and comprehensive communications facilities: TCP/IP, X.25,
SNA,Voice, modem server, gateways...
The clustering (LAN) runs on cheap twisted-pairs at 3.68 megabits/sec
nowadays. It allows master/slave and/or peer-to-peer file and device
sharing with a comprehensive security and monitoring function in CTOS.
CTOS can support simultaneous executions of CTOS, MS DOS, WINDOWS applications
in separate contexts - sounds like OS/2, doesn't it.
It even has an AT board called a ClusterCard that makes a PC/AT function
like a CTOS workstation.
Nowadays, a B39, for example supports SCSI devices, SVGA-equivalent
monitors, math coprocessor...
A lot of banks buy CTOS by the hundreds for its versatility and connectivity
to various mainframes.  Unfortunately, it is not appreciated by most PC
users.  There are over 220,000 CTOS/BTOS worldwide.

Samuel S. Tan; Suite F-525;Mail Stop 240; Mission Viejo, CA, U.S.A.
Net~2 656/(714)380-6583    Fax: 714-380-6048, or -6560, or -5138
{EMAIL}5138/EMMK or SAMT/Corp, {USA}<SAMTAN@MPA6DE>, {Canada}TANS/TOR2
       SAMTAN%MPA6DE@trengA.Tredydev.UNISYS.COM
*=* Any explicit opinions are mine; imply or quote at your own risk! *=*
 ================= ============== ============= ================ =======

------- End of forwarded message(s) -------
Newsgroups: comp.sys.unisys
From: martin@unislc.uucp (Martin Cryer)
Subject: Re: SVR4 for U6000/60?
Reply-To: martin@unislc.UUCP (Martin Cryer,D1Z01,5754)
Organization: Unisys, Salt Lake City
Date: Wed, 18 Nov 1992 01:23:55 GMT

In article <Bxp7nJ.DuL@darkside.osrhe.uoknor.edu> root@darkside.osrhe.uoknor.edu (Operator) writes:
>I'm looking for any information about SVR4.? for the U6000/60 series.

This is an available product. You can order it through your local
branch sales office.

From memory here, any release after and including 1.0.2 supports the U6000/60.

The O/S is based upon the SVR4.0/MP from the MP consortium (of which
UNISYS is a member).

The 1.0.2 release is V1 MP based, the 1.1 release onwards is V2 MP based.

The O/S is synchronised with and compatible with the U6000/15/35/60/65
systems.

I believe the current marketing practice bundles the C dev system with
the O/S product in release 1.1 onwards. The TCP/IP/NFS stuff is bundled
in all releases.

The best thing to do is order a copy of the Software Release Announcement
document from your local sales rep so you can check the exact release
numbers and the software products that are also supported, from the 
VAP software suite. This should tell you which plug in H/W and S/W
components are supported etc.

Prices of the O/S and support contracts need to be obtained locally
of course.
>
>
>-- 
>-------------------------------------------------------------------------------
>Huy Nguyen                        | "It's not nearly enough to survive,
>wee@darkside.uoknor.edu           |  But to live." - M.M.
>-

Martin Cryer
SVR4.0/MP Development
U6000 Architectures Group
UNISYS Salt Lake City

All opinions are my own and are not those of my employer.
From: MPA15AB!RANDY@TRENGA.tredydev.unisys.com
Newsgroups: comp.sys.unisys
Subject: Re: Burroughs B20
Date: 18 Nov 1992 19:14:59 -0600
Organization: UTexas Mail-to-News Gateway
NNTP-Posting-Host: cs.utexas.edu
X-Unparseable-Date: 18 NOV 92 19:25

By the way, CUBE BTOS/CTOS/UNIX Public Domain Software is available for
$5/disk (each disk contains several programs) from:

   Greenhills Computer Products
   6 Imbler Drive
   Greenhills, Ohio, 45218
   (513) 742-3434

They will send a list of available programs free, just call them.

|sua cuique voluptas                  (everyone has his own pleasures)|
|Randy Gellens                randy%mpa15ab@trenga.tredydev.unisys.com|
|A Series System Software                 if mail bounces,  forward to|
|Unisys Mission Viejo, CA                         rgellens@mcimail.com|
|Opinions are personal;   facts are suspect;   I speak only for myself|

                  Randomly selected tag:

The Supreme Court does it with all deliberate speed.
From: dold@mitisft.Convergent.COM (Clarence Dold)
Newsgroups: comp.sys.unisys
Subject: Re: CTOS <-> DOS disk con
Date: 15 Nov 92 21:44:13 GMT
Organization: Unisys Unix Systems Group, San Jose, CA

in article <139.166.uupcb@ssr.com>, dick.zeitlin%acc1bbs@ssr.com (Dick Zeitlin) says:
> Actually, given that mtool package as a starting point, it probably is
> trivial.  But, since the utilities to read/write Dos floppies are part
> of Ctos Standard Software, why bother??
> 
> C'mon, Clarence...  You've been dealing with that **IX stuff too long!
> You should get into CTOS!  <~>

But...
I assumed that the original poster didn't have MREAD/MWRITE, or we wouldn't
have this thread here.
I am promoting the "CTOS open".  There should be PD software in existence
for a system with over a million users.  There certainly is for the
Convergent/AT&T UNIX PC, with its measely 75,000 users.

I see postings from people who have acquired B20, etc, as the business
users move up to the faster CTOS hardware.  These folks are probably living
with CTOS 8.x, or its BTOS eqivalent.  They are going to have to craft
their own software, or pay people like you.  An hour of your time is
probably more than they paid for the machine ;-).

		Glad to see you back.
You aren't actually using a **IX machine to post this, are you ?????

-- 
---
Clarence A Dold - dold@tsmiti.Convergent.COM
               ...pyramid!ctnews!tsmiti!dold
Newsgroups: comp.sys.unisys
From: costello@tolsun.oulu.fi (Antti Jarvinen)
Subject: Unfunctionality of Sperry 5000/?? ; please help
Keywords: Sperry
Organization: University of Oulu, Finland
Date: Tue, 17 Nov 1992 22:14:02 GMT

A friend of mine invested some money to a sperry 5000/??? computer.
It runs Sys Vr2.1 and has a tape drive installed. A few days it
worked well and then came a problems: after power-up it gives
following information:
LOG TASK = SSKE,0
ERROR CODE 1 = $0109
AUTO TEST SEQUENCE
TEST: IVT TOD EDC MMU MEM HIO 
LOG TASK = HIO0,0
ERROR CODE 1 = $C00A

TEST: MPA 
TEST LOAD ERROR $0581



LOG TASK = SSLS,0
ERROR CODE 1 = $0581

SWITCHING TO INTERACTIVE MENU
PRESS SPACEBAR TO CONTINUE  

After that appears a menu that appears when machine is booted to 
manual-state. About error-codes says manual the folloowing:

01xx SKE  (SUS Kernal)
Cxxx HIO0 (High Performance 8-channel I/O Controller Level 0 Diagnostics)
05xx SSLS (SUS Load Supervisor)

When we try "INSTALL SYSTEM" from that menu that appeared after power-up
tells the computer:

LOG TASK = SSST,0
ERROR CODE 1 = $0609

and manual says: $06xx SSST (Streaming Tape Loader)

What could be broken? As far as I can remember the problem appeared
when a rs-cable between console-terminal and that machine was
accidentally pulled off from the plug when machine was up and running ..
after that the machine didn't ever boot again :-(
I can't see how a broken rs-cable could cause something to break down
in a computer - can it break something?
That machine claims that I/O-controller is broken - if it is, who
would like to sell us new one ? :-)

Sorry about spelling errors etc, my native language is Finnish.

--
Antti Jaervinen, costello@tolsun.oulu.fi, costello@muikku.pulp.nullnet.fi
Copy this .sig and just say noe to big-brother's monitoring of public bandwidth
*Bush Quayle conspiracy JFK cocaine LSD heroin marijuana AK-47 Iran Iraq Libya*
*Sandinista Contras Panama Noriega FBI CIA NSA Secret Service fixed-elections *
*Neil Bush S&L coverup potatoe wiretaps search & seizure bill of rights dead  *
Xref: sparky comp.sys.unisys:639 alt.folklore.computers:16267 comp.sys.misc:962
From: nite@phoenix.oulu.fi (Hannu Kotipalo)
Newsgroups: comp.sys.unisys,alt.folklore.computers,comp.sys.misc
Subject: Re: Burroughs B20
Date: 15 Nov 92 19:34:13 GMT
Organization: University of Oulu, Finland
X-Newsreader: TIN [version 1.1 PL6]

Mike Ciaraldi (mcia@uhura.cc.rochester.edu) wrote:
: In article <cf16naP0Bwx25HbsAe@transarc.com> Pat_Barron@transarc.com writes:
: >So, I seem to have aquired a Burroughs B20.  Looks like it was meant
: >to be used as a word processing system.  It's running an operating
: >system called BTOS.
: >
: >What else is there to know about this system?  Can it run any sort of
: >"real" operating system?  Anyone have any software for it that they no
: >longer want...?
: >
: 
: The B20 runs BTOS, which was called CTOS when you bought it from Convergent.
: I think the B20 used a Z80 or similar 8-bit microprocessor.

No, it uses 8086 or 8088. I'v seen one running an MS-DOS - emulator.

I saw it in our 4H assosiation's local office. I even made a program to
it with my brother at our high scool time. They used it for word processing
and financial purposes. And to run our program which counted points for
little hard-working gardeners (well, the only language we got was basic.
Surprisingly it was very near GWBasic...)

My opinion is that the BTOS operating system was much better than most of the
other character based PC-OS:es at that time. For example, to run a program 
you only needed to give few letters from the program name and it searched 
all matching commands or programs starting with those letters. I do not know
what was inside the OS, but for the user it was more frendlier than for example
MS-DOS.

About software running on it, I cannot say much. I have only seen that word
processing program and MS-DOS emulator (it could not run Turbo Pascal v 3.0).
I think that accounting program they had run under the emulator. If I remember
correctly, there is at least Fortran for it too.

 Nite
Newsgroups: comp.sys.unisys
From: dold@unislc.uucp (Clarence Dold)
Subject: Re: Burroughs B20
Organization: Unisys Corporation SLC
Date: Sat, 21 Nov 1992 02:16:42 GMT

From article <ANWR4606AD2D80@MPA15AB>, by MPA15AB!RANDY@TRENGA.tredydev.unisys.com:

> users.  There are over 220,000 CTOS/BTOS worldwide.

Ouch.  There are over 1/4 million 80186 based NGEN.  I haven't seen any
numbers since then, but I assume that some of them are still in service.  I
have no idea what the delivery figures are for 286, 386, 486 boxes.
The total number of 8088 and 8086 boxes is probably low tens of thousands.

Or did you mean CTOS sites?  That seems high, but closer than 220k boxes.

-- 
---
Clarence A Dold - dold@unislc.slc.Unisys.COM
               ...pyramid!ctnews!tsmiti!dold
Newsgroups: comp.sys.unisys
From: sig@cmns-sun.think.com ()
Subject: Rats
Reply-To: sig@cmns-sun.think.com ()
Organization: GTE Contel Federal Systems
Distribution: comp.sys.unisys
Date: Mon, 23 Nov 1992 18:08:45 GMT

Does anybody know whether Rats is public domain, if so, where might it be 
available, and will it run on a PC?



Newsgroups: comp.sys.unisys
From: martin@unislc.uucp (Martin Cryer)
Subject: Re: SVR4 for U6000/60?
Reply-To: martin@unislc.UUCP (Martin Cryer,D1Z01,5754)
Organization: Unisys, Salt Lake City
Date: Wed, 18 Nov 1992 01:52:55 GMT

In article <1992Nov17.204010.23033@oracle.us.oracle.com> eginsber@oracle.com (Eric Ginsberg) writes:
>In article <Bxp7nJ.DuL@darkside.osrhe.uoknor.edu>, root@darkside.osrhe.uoknor.edu (Operator) writes:
>> I'm looking for any information about SVR4.? for the U6000/60 series.
>> 
>> 
>> -- 
>> -------------------------------------------------------------------------------
>> Huy Nguyen                        | "It's not nearly enough to survive,
>> wee@darkside.uoknor.edu           |  But to live." - M.M.
>> -
>
>
>Last I heard, there are two SVR4s  for the Unisys U series.  They are split up into the
>U6000/35/65 and the U6000/50/55/60.   Call your Unisys Rep for ordering info, I'm not
>positive that the products have been released.

Not quite right. There is one SVR4.0/MP product, sold under different
product codes for packaging and licencing reasons (some with EISA Config
Util and boot floppy, some without). However, the same O/S release
covers the U6000/15/35/60/65 as the supported platforms.
You need to order the correct one to get the correct miscellaneous
media, documentation and licencing for your target system. The U6000/60
version will include ammendments to the H/W installation guides for
SVR4.0/MP too. BE SURE TO ORDER THE CORRECT PRODUCT CODE.

All O/S-es for these systems are built from the same source at the
same time for release, so there are not two "versions". Some low level
code is conditionally compiled for the U6000/60 architecture and H/W
specific drivers, but it all comes from the same source. So don't worry
about miss-matched rev levels and versions between platforms.

The older 80386DX systems are NOT supported, ie U6000/30/31/50/51/55.

>
>
>
>--> Ric

Martin Cryer
SVR4.0/MP Development
U6000 Architectures Group
UNISYS Salt Lake City

All opinions are my own and are not those of my employer.
Newsgroups: comp.sys.unisys
From: eginsber@oracle.com (Eric Ginsberg)
Subject: Re: SVR4 for U6000/60?
Organization: Oracle Corp
Date: Wed, 18 Nov 1992 22:16:08 GMT
X-Disclaimer: This message was written by an unauthenticated user
              at Oracle Corporation.  The opinions expressed are those
              of the user and not necessarily those of Oracle.

Martin,
  Just when I was leaving San Jose in October we received an SVR4 for the 6000/55.
  In fact,  I think someone in telecom installed it on a 55 while I was there.  It was a
  different tape then the one for the 35/65.  The tape came from the SJC software library
  so you might want to give them a call.


--> Ric
Newsgroups: comp.sys.unisys
From: martin@unislc.uucp (Martin Cryer)
Subject: Re: SVR4 for U6000/60?
Reply-To: martin@unislc.UUCP (Martin Cryer,D1Z01,5754)
Organization: Unisys, Salt Lake City
Date: Sat, 21 Nov 1992 02:04:32 GMT

In article <1992Nov18.221608.636@oracle.us.oracle.com> eginsber@oracle.com (Eric Ginsberg) writes:
>Martin,
>  Just when I was leaving San Jose in October we received an SVR4 for the 6000/55.
>  In fact,  I think someone in telecom installed it on a 55 while I was there.  It was a
>  different tape then the one for the 35/65.  The tape came from the SJC software library
>  so you might want to give them a call.

SVR4.0/MP may run on the U6000/55 but has not ever been commercially
released on that platform. It may run on the U6000/50 and U6000/51 too.

However, I was talking about commercial availability:

1.	Performance may not be adequate on those systems due to the
	limitations of the 80386 speed and the max memory supported by
	the hardware.

2.	It was NEVER tested through product verification or integration
	test for all the various revisions and versions of U6000/50/51/55
	systems, including the various stepping 80386 CPU chips / erratas
	or the various I/O board versions etc.

3.	The SJ software library is the same as the SLC one, they move
	stuff electronically between the two.

4.	Earlier versions of SVR4 than the one RELEASED on the U6000/60
	ran on U6000/50/51/55 too, but major functionality was missing,
	such as UPS port control, ECOM port control and ECC memory
	board support.

5.	Don't trust it. What may have been used for a special for you,
	is not what commercial customers will have available.

6.	Outside of specials for some internal use folks, it is not a supported
	product combination.

7.	Such a combination is not licenced by Unisys.

8.	It is not orderable on U6000/50/51/55 platforms.

9.	Some U6000/50/51/55 vintage systems use 60MB QIC-24 tape
	drives and the distribution media is 150MB QIC-150 tapes!

Currently the supported platforms for SVR4.0/MP
are (as of current SVR4.0/MP 1.1 release):

	U6000/15	(80486DX 33MHz)
	U6000/35	(80486DX 33MHz and 80486DX-2 66MHz)
	U6000/60	(80486DX 25MHz)
	U6000/65	(80486DX 33MHz)
	U6000/65	(80486DX 50MHz)

So, in conclusion, yes many releases may kind-of-run on the early
U6000/50/51/55 systems, none are are commercially released and
available to customers.

>
>
>--> Ric

Martin Cryer
SVR4.0/MP Development
U6000 Architectures Group
UNISYS Salt Lake City

All opinions are my own and are not those of my employer.
From: dick.zeitlin%acc1bbs@ssr.com (Dick Zeitlin) 
Newsgroups: comp.sys.unisys
Subject: Re: Burroughs B20
Date: 16 Nov 92 14:57:00 GMT
Distribution: world
Organization: Advanced Computer Concepts BBS, New Rochelle, NY 914-654-1981
Reply-To: dick.zeitlin%acc1bbs@ssr.com (Dick Zeitlin) 

MC> .>What else is there to know about this system?  Can it run any sort of
  > .>"real" operating system?

It runs a real operating system.  Perhaps not one overly familiar to
you, but one that rivals anything on the market today.  You might want
to get a book called "Exploring CTOS", published by Prentice Hall.

MC> .The B20 runs BTOS, which was called CTOS when you bought it from Convergen
  > .I think the B20 used a Z80 or similar 8-bit microprocessor.

B-20 is a generic term.  The first machine shipped, in 1980, used an
8086.  Since then, there have been machines shipped using the 80186,
286, 386, and 486.

There's a CTOS vendor in Rochester that you might want to contact.  ISD.
I don't have the address handy, but from memory the number is
716-288-1686.  Ask for Tom Wallace.

        D/

 * OLX 2.2 * Bring back A-N airways!!    Dick.Zeitlin%acc1bbs@ssr.com
Newsgroups: comp.sys.unisys
From: eginsber@oracle.com (Eric Ginsberg)
Subject: Re: SVR4 for U6000/60?
Organization: Oracle Corp
Date: Tue, 17 Nov 1992 20:40:10 GMT
X-Disclaimer: This message was written by an unauthenticated user
              at Oracle Corporation.  The opinions expressed are those
              of the user and not necessarily those of Oracle.

In article <Bxp7nJ.DuL@darkside.osrhe.uoknor.edu>, root@darkside.osrhe.uoknor.edu (Operator) writes:
> I'm looking for any information about SVR4.? for the U6000/60 series.
> 
> 
> -- 
> -------------------------------------------------------------------------------
> Huy Nguyen                        | "It's not nearly enough to survive,
> wee@darkside.uoknor.edu           |  But to live." - M.M.
> -


Last I heard, there are two SVR4s  for the Unisys U series.  They are split up into the
U6000/35/65 and the U6000/50/55/60.   Call your Unisys Rep for ordering info, I'm not
positive that the products have been released.



--> Ric
From: john@wa3wbu.UUCP (John Gayman)
Newsgroups: comp.sys.unisys
Subject: Re: SVR4 for U6000/60?
Date: 18 Nov 92 23:16:10 GMT
Organization: @ WA3WBU, Marysville, PA

In article <Bxp7nJ.DuL@darkside.osrhe.uoknor.edu>, root@darkside.osrhe.uoknor.edu (Operator) writes:
> I'm looking for any information about SVR4.? for the U6000/60 series.
> 
> 


    SVR4 is available for the U6000/15/35/60/65. Anything specific your
   looking for ?


-- John



-- 
John Gayman, WA3WBU 
UUCP: uunet!wa3wbu!john
Packet: WA3WBU @ WB3EAH 
Newsgroups: comp.sys.unisys
From: jruschme@nyx.cs.du.edu (John Ruschmeyer)
Subject: Burroughs 9000 - What is it? Do I want it?
X-Disclaimer: Nyx is a public access Unix system run by the University
	of Denver for the Denver community.  The University has neither
	control over nor responsibility for the opinions of users.
Organization: Nyx, Public Access Unix at U. of Denver Math/CS dept.
Date: Thu, 19 Nov 92 20:37:16 GMT

Simple questions:

My sister-in-law's accounting firm is getting rid of a Burroughs 9000
system (2 HD, streaming tape, 6 tubes, printer) and I have been asked
if I might want it.  Hence, a couple of questions:

	1) What is a Burroughs 9000 anyway?

	2) What does it run?

	3) Is there anything I might want to scavenge off of it?
		(disks, tape, etc.)

Responses by mail welcome and appreciated.

<<<John>>>
jruschme@nyx.cs.du.edu



Newsgroups: comp.sys.unisys
From: MPA15AB!RANDY@TRENGA.tredydev.unisys.com
Newsgroups: comp.sys.unisys
Subject: Re: UUENCODED EXECUTABLES: CTOS <-> DOS disk conversion
Date: 18 Nov 1992 19:14:59 -0600
Organization: UTexas Mail-to-News Gateway
NNTP-Posting-Host: cs.utexas.edu
X-Unparseable-Date: 18 NOV 92 19:28

When I downloaded the post and uudecoded it, I ended up with a .zoo file.
What is a .zoo file, and how do I turn it into an executable?

|sua cuique voluptas                  (everyone has his own pleasures)|
|Randy Gellens                randy%mpa15ab@trenga.tredydev.unisys.com|
|A Series System Software                 if mail bounces,  forward to|
|Unisys Mission Viejo, CA                         rgellens@mcimail.com|
|Opinions are personal;   facts are suspect;   I speak only for myself|

                  Randomly selected tag:

The accessibility, during recovery of small parts which fall from the
work bench, varies directly with the size of the part - and inversly
with its importance to the completion of work underway.