test-drb February 1999

test-drb@ccmp.vtda.org

178 participants
709 discussions

by fmc＠reanimators.org

"Hans Franke" <Hans.Franke(a)mch20.sbs.de> wrote: > BTW: this E symbol is one of the 4 most stupid ideas around > the euro - a typical pice of shit like most ideas developed > by politicians. Don't get me wrong, the Euro is a good idea, > but they tried to make it as stupid as possible. The cynic in me wonders whether the funny-looking E isn't something pushed either before or after the political accomplishment by computer companies wanting to churn the installed base. I mean, Y2K has a definite sell-by date. So does this but I think it's another couple years out, right? ObCC: so what did you UKans do to get your funny-looking L on computers, terminals, and printers imported from ASCII-speaking countries? -Frank McConnell

25 years, 3 months

tube CD player (was Re: sizes (was Re: vacuum tube computer))

by pete＠dunnington.u-net.com

On Feb 1, 23:30, Eric Smith wrote: > Of course. It would use a HeNe laser, just like the early laser video > disc players. > > The part I haven't figured out is the photodetector. Even those early LD > players used a phototransistor for the detector. Would a selenium cell be fast enough? A CdS photresistor probably wouldn't be, I think. -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 3 months

vacuum tube computer

by Jgzabol＠aol.com

In einer eMail vom 31.01.1999 23:58:22, schreiben Sie: << I wonder if bit-serial would be simpler (less data path, more control logic, basically). A lot of the valved machines were bit-serial for this reason. [...] I simply find bit-serial AWFUL - so much time wasted !!! Anything should be designed to get the max. performance out of given technology/budget, in my opinion; bit-serial certainly then would be a good solution for a LONG word, like 30-60 bit, doing floating point, if and only if budget limits do not allow paralell, but not for smaller things. THAT is the reason for the historic machines - they wanted floating point, therefore long words, therefore serial because of budget/size/etc constraints. > Am amazed you couls build a computer like this with ~400 cards ~800 tubes. > That is similar to building a complete computer with 200 SSI TTL chips like > a 7400. Especially since a 24 bit latch could use 24 of the cards. I tried This doesn't sound out of line. The CPU of the PDP8/e on my desk is 3 quad cards of TTL, mostly simple gates. Perhapes 250chips total. OK, some of them are more complex (like full adder circuits), but there's nothing that big in there. > a design once (on paper) with MSI ic's like 74193 counters, and it quickly > got out of hand, 100's of ic's. If you're going to allow anything in the TTL data book, then you can trivially make a CPU in 200 chips. You have to cheat slightly (74181 ALUs, small PROMs, etc), but it can be done. It has been done - many times. -tony >> The big difference is in the basic AND-OR-INVERT tube gate used: only one half tube (the INVERT, one triode section out of a dual triode tube) is used, but a lot of diodes doing the ANDs and ORs, so that one tube section is equivalent to MORE than a standard SSI 74xx IC. Typically, I would say one AND-OR-INVERT, i.e. one tube section plus associated diodes and resistors is equivalent to about one entire 74xx package, so one tube is equivalent to about two packages, on the average. John G. Zabolitzky

25 years, 3 months

CD-RW Drive

by musicman38＠mindspring.com

->One detail that you might need to check: does the CD-RW share the IDE >channel with the CD-ROM? A lot of recorders will spit out bad CD's >because of this. I've had two drives that either wouldn't record at the >right speed or would bomb when writing the table of contents to the disc. > >Brett I think you may have something here Brett, Yes they do share the same IDE cable, one is Master , one is slave.. Problem is I also have a master & slave ide hard drive on the other cable.. I will try changing the cableing, did not know this was a problem, the book does not tell of this potential problem of sharing two cdrom drives on the same ide cable.. Phil...

25 years, 3 months

Euro on old computers

by fauradon＠pclink.com

>For ASCII text we tend to use 'L', 'UKP', 'GBP', or \pounds to mean a >pound sign. Or do what at least one catalogue I have (a current >catalogue, BTW), and give all prices in pence. This catalogue includes >things like 3600p (meaning \pounds 36.00), I guess because they couldn't >print a pound sign. Which brings up the question: What is the symbol or abbreviation for one hundredth of a Euro? Francois > > >-tony >

25 years, 3 months

TI99: WP and PC

by netcafe＠pirie.mtx.net.au

-----Original Message----- From: Hans Franke <Hans.Franke(a)mch20.sbs.de> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Tuesday, 2 February 1999 3:49 Subject: Re: TI99: WP and PC >P.S.: I've been told there was a Nixdorf computer where they > build a (TTL) CPU based on the 9900 design. I've got some bits of a Nixdorf something or other. Basically it's the backplane, minus the rack and mountings, plus the power supply, some drives, and cables and a couple of boxes full of modules. Chip dates are around 74. Anyone know anything about Nixdorfs of this era? Cheers Geoff Roberts Computer Room Internet Cafe Port Pirie South Australia. netcafe(a)pirie.mtx.net.au

25 years, 3 months

RT-11 and TCP/IP

by healyzh＠aracnet.com

OK, I'm back to trying to get Alan Baldwin's TCP/IP package running on RT-11. I've gone over the install procedure and am sure I'm doing it right. Tonite I was trying for both TSX+ and the RT-11 XM monitor using the EQ driver, and also the NQ driver that came with RT-11 for the XM monitor. I know the ethernet board is good as I'm able to use it under RSX-11M for DECnet. Howver, I'm getting the following error when I try to use FTP to connect to one of my other systems on my network. .ftpsb 192.168.1.41 FTPSB-11 V02.24 1-Nov-1998 Board initialization failed!. Error code=11 netinit() failed . Can anyone translate this and tell me what I'm doing? Has anyone here managed to successfully install the software? The other problem is that while the instructions say that the EQ drivers included will work on a system running the SJ or FB monitors, I can't get the driver to load. Yes, I realize it's not normal for the SJ/FB monitors to be able to use a EQ driver. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.dragonfire.net/~healyzh/ |

25 years, 3 months

Indiana Jones and the... (was list (was: Daily Laugh!))

by mbg＠world.std.com

I hope you're kidding about the Altair serial number 1... I would rather hope that he would be investigated for 1) stealing it in the first place, or 2) accepting stolen property... Megan

25 years, 3 months

Indiana Jones and the...

by dogas＠leading.net

-----Original Message----- From: Doug <doug(a)blinkenlights.com> >No it doesn't. Here's the Real Story (TM): Ed Roberts had a publication >deadline... damn... I was envisioning BIllG and PaulA on horseback jumping onto the roof of a speeding train with guns (and whips) in hand... I'll have to cancel that memo to Steve Spielburg.... Heh... Mike: dogas(a)leading.net

25 years, 3 months

Z3 builders

by brett＠xnet.com

I was wandering around the net and found - 4PDT relays with sockets. Price - $2.00 - 24DC coils. Email me to get some while thier hot - er - available 8-) Wasn't it you Derek? BC

25 years, 3 months

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test-drb February 1999