test-drb November 1997

test-drb@ccmp.vtda.org

126 participants
546 discussions

by photze＠batelco.com.bh

Also, 88 (8088), 87 (487, 8087, etc.) and many other numbers. With macs, there's a whole slew of numbers that I don't want to get into. Tim D. Hotze ---------- From: Riccardo Romagnoli <chemif(a)mbox.queen.it> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Subject: Re: Computer collecting humor. Date: Tuesday, November 04, 1997 4:49 PM At 10.36 04/11/97 +0000, you wrote: >Which reminds me. Which word lengths have been used by (binary) computers? >Off the top of my head : > >4 (Intel 4004, etc) >8 (Far too many to list) >12 (PDP8, PDP12, etc) ..omissis... >What others? 9 (Texas 99/4, 990/10, TMS 9900) 86 (Intel Docet again) Riccardo

28 years

Help Identifying RAM Chips

by photze＠batelco.com.bh

I disagree with both of you. 300ns is more like the 70's to me. Even the 1982 IBM PC XT had 200ns RAM. A year later adding a third to that figure makes no since. But 300ns might be right; as I would KILL for 30ns RAM in a Pentium 233!!!! Even the fastest EDO RAM (Slightly outdated, but still recent) is at 50ns; so 30ns makes ZERO sense. ---------- From: Tim Shoppa <shoppa(a)alph02.triumf.ca> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Subject: Re: Help Identifying RAM Chips Date: Monday, November 03, 1997 5:35 AM > Your chip #1 is a 64k chip speed of 30ns, chips 2&3 are 256k at 150ns speed. ^^^^^^^^^^^^^^^^^^^^^^ I disagree with the 30ns figure; why the heck would a Compaq Portable from 1983 have 30ns RAM in it? 300ns seems far more likely, and is perfectly consistent with the numbering >from manufacturers of that era. > The last set of tell the the size and speed (64-3 and 256-15). John > >I have two original Compaq Portables, both of which are giving POST > >errors when they boot which indicate bad RAM. I have gone through a few > >... > >Chip #1: > >Hitachi > >1818-3006 > >Japan 8332U > >HM4864P-3 Tim. (shoppa(a)triumf.ca)

28 years

Items for trade or sale

by jrkeys＠concentric.net

the following are for trade or sale by a guy here in St. Paul MN. PLEASE e-mail him directly at sloan003(a)maroon.tc.umn.edu Apples - IIc with case, monitor, power supply Platinum IIe with Duo drive, platinum monitor IIplus with amber monitor, 2 drives IIe with monitor, one drive KB's - 2 MAC Plus type, 2 MAC II type, 1 MAC 128 type Mice - 2 old type early MAC's MAC Plus computer Apple Imagewriter II printer 2 Conner 40meg HD 10 MAC SE manuals new in package Tons of new manuals for MAC's Apple II's and other Apple products(ask for list) Appletalk card new Mac II network card

28 years

Beginners Need Help

by jrkeys＠concentric.net

>Date: Mon, 03 Nov 1997 19:34:29 -0600 >To: classiccmp(a)u.washington.edu >From: "John R. Keys Jr." <jrkeys(a)concentric.net> >Subject: Re: Beginners Need Help > >Pickup a copy of A Collector's Guide to Personal Computers and Pocket Calculators by Dr. Thomas F. Haddock. It's a great book. John >At 05:55 PM 11/3/97 +0300, you wrote: >>Hello. I'm not so much a classic specialist as a computer specialist, as I >>love both old and new computers. I'm not a proffesional, but do know >>BASIC, DOS and all other kinds of stuff which the fast-moving stream of >>technology has left behind, unfortunately. But anyway, I didn't know jack >>about computers in the early 80's, other than what the average Joe knew: >>Keyboard, commands, annoying. But since '92, I've been learning more and >>more. But I need a basic list of systems that are 1. Easy To Find 2. >>Important enough to draw attention. >> Thanks, >> >> Tim D. Hotze >> >> >

28 years

Sorry, I need to get this to PG Manney, there was an error when I sent it direct....

by photze＠batelco.com.bh

Sorry it took so long. I tried mailing you, but there was an error. ---------- From: PG Manney <manney(a)nwohio.com> To: photze(a)batelco.com.bh Subject: Re: The link you sent Date: Thursday, October 30, 1997 6:01 PM >It's really comforting to know that some people have consionace. >Thanks. I'm trying to raise my children with consciences, too. We're >Christians, and we feel that treating people *right* is very important Those people will be the future leaders of our world. >I hope >that you're not in a hurry: A friend's giving me a new board, and they say >that it could take some time to get it, but as soon as I get it, they new >board will get shipped to you. Don't worry, I won't give it to anyone >else. I always need motherboards and drives (got any old IDE drives around?), because I buy and sell computers. We're out here in the wilds of Ohio (USA), where many people have older systems...I even sold a Commodore the other day! I have an old IDE drive, it's a Segate 41 MB. It says ST-251, then on a seperate sticker it says -1 right next to the first one. Serial number is 25534738. It's the large kind, like they had back in the early 80's. If you repair computers, I have a additional 486/SX 33 that I could throw in. >remember the XT being the first IBM, but I might be wrong. The IBM PC (model 5150, IIRC was the first PC...you can tell that one from the TX sinc the PC had a small funny keyboard (very small, oddly placed "Enter" key), 5 slots (the XT had 8) and a Cassette plug next to the keyboard one. Also, the case said "IBM Personal Computer" instead of "IBM Personal Computer XT". The motherboard was redesigned in the XT (the PC, for example, had 2 banks of DIP switches on the motherboard, instead of one). The XT counted out memory when it booted up, the PC just gave you a flashing cursor to stare at. Actually, the IBM 5100 was the first desktop computer. It had 8" drives, a dedicated printer and all that...it bombed, and IBM didn't try again until the PC. >Lessee...I have several Commodores, a couple of VIC-20's (one in original >box with original packaging, used once.), a couple of Apples... two or three >PC's and an XT (I think). It would be better to send *anything* but the >IBM's, because everything else is plastic-cased, and therefore lighter. >Still, you're the customer! I'm new at collecting classics. What is a VIC-20? And what model of Comodore, and Apple? I have a TV screen, I even have one in the guest bedroom that's used once in a blue moon. Didn't the older Apples up to the IIGS have attached monitors? (I remember a few Macs that had one later than that...) >The Post Office tells me that 44 lbs will cost $89 US to send to you. If you >have a TV screen, you can save on the cost of shipping a monitor for an >Apple/Commodore/anything else. (The IBM will work a TV screen with the right >card, but colors are funny). Thanks, Tim D. Hotze

28 years

Help Identifying RAM Chips

by jrkeys＠concentric.net

You are right it was a typo on my part. At 06:35 PM 11/2/97 -0800, you wrote: >> Your chip #1 is a 64k chip speed of 30ns, chips 2&3 are 256k at 150ns speed. > ^^^^^^^^^^^^^^^^^^^^^^ > >I disagree with the 30ns figure; why the heck would a Compaq >Portable from 1983 have 30ns RAM in it? 300ns seems >far more likely, and is perfectly consistent with the numbering >from manufacturers of that era. > >> The last set of tell the the size and speed (64-3 and 256-15). John >> >I have two original Compaq Portables, both of which are giving POST >> >errors when they boot which indicate bad RAM. I have gone through a few >> >... >> >Chip #1: >> >Hitachi >> >1818-3006 >> >Japan 8332U >> >HM4864P-3 > >Tim. (shoppa(a)triumf.ca) > >

28 years

C-64

by Zeus334＠aol.com

Would anyone be interested in C-64 stuff and a bunch of tapes? I have a 1541 drive, and okidata printer, a bunch of famous programs (space rogue, LOGO, bank street writer, GEOS, F-14 Tomcat,etc.), a few joysticks, a Koala pad with software. 300 bps modem. No actual C-64.I don't want to ship this stuff, but I'll give it for free to anyone who picks it up in Boston, MA, USA. Also, I have some reel to reel tapes, some labelled ADES, NOVA controller, and other things. Most are dated 1980's, 1990's. I'll give them away too.

28 years

Space problems in the UK and US

by sinasohn＠crl.com

At 05:44 AM 10/26/97 +0300, you wrote: >I have a similiar problem: Due to the large size of the XT style >motherboards, my desk devoted to classic computers isn't big enough. I can >fit the computer on, the monitor on the computer, and the keyboard on the >floor. When you try to type, it's not fun. (Type a command. Stop. Before Look into the monitor arms that let attach to your desk and support your monitor above the desk/computer. Many of them have a simple wire rack that pulls out in front to hold a keyboard. (Basically, it's just a square U of metal that slides in and out.) There are other advantages to this as well. If you're working on several computers that use the same type of monitor, you don't need to move the monitor to swap CPU's. Also, it lets you use the monitor-over-CPU set up for machines that aren't flat boxes (like a C64, atari 800 or SOL-20.) You can also swing it out of the way if you want to work on the computer. >PS- How do you post an origional message? Do you just send one to9 >classiccmp(a)u.washington.edu , or somewhere else? Yep. --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)crl.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

28 years

Need Jumper Settings...

by photze＠batelco.com.bh

Okay, thanks, but I need to know jumper settings. There is a set of four jumpers accessable in the back when the graphics board is installed. Thanks, Tim D. Hotze ---------- From: jpero(a)cgo.wave.ca To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Subject: Re: Need Jumper Settings... Date: Monday, November 03, 1997 2:27 PM "CHIPS" is Chip & Technologies. Well, Sounds like you gotten a great chipset type: it can emulate EGA driving any monitor TTL, CGA while in EGA. Very good. I think C&T first chipset was this kind that allowed low cost computers to happen. Then C&T did in 286 and 386 chipsets including cached types as well. Not too bad chipset for 286 but tends to be bit slower in 386 especially at higher mhz. Now C&T is focusing only on video chipsets for portable applications only mainly driving flat panels. Troll

28 years

Help Identifying RAM Chips

by allisonp＠world.std.com

<company like Microsoft or maybe IBM had someone design something <faster..... we'll be at 15ns soon enough anyway. We've gone from 70ns in <late 94 to only 45ns today, and SRAM has become so darn fast.... by the I've been in the technology for 20 years and 15 NS up until the 90s was bipolar or ECL territory and those technologies were not dense enough to yeild large memories or cheap. There were static mos/cmos parts that were fast but in the mid 80s 70ns was still very quick and 45ns was at the corner of the technology. <way, does anyone know about overclocking an 8088 (the 8mhz variety), by <NEC, not Intel? By how much? 10% is generally doable and depending on the mask and age of the part it may have been faster than marked. The problem is everything around the 8088 has to run faster and the eproms/rams are likely unable to keep up as 10mhz was state of the art for the time and even then wait states had to be inserted to keep things in sync. I'd recommend not trying as the amount to could get is not significant enough and you may cause other problems in the process. If sped is a must find an AT or 386. Even a 386sx/16 is at least 3-5x faster! Allison

28 years

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test-drb November 1997