test-drb

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101090 discussions

by carl.friend＠stoneweb.com

G'day. In the last large haul I made (which included an Eclipse S/130 and a Nova 4) for my collection, I acquired a little RCA terminal which bills itself as an "Office Appliance". It's quite clearly a small video terminal and seems to be based around the 1801 microprocessor. I'm wondering if anybody has the manuals for the little beast and can tell me what the power supply puts out, and on what pins (it's got a DIN connector on the back labelled "power"). I'd sort of like to fire it up and see how it works. Thanks! ______________________________________________________________________ | | | | Carl Richard Friend (UNIX Sysadmin) | West Boylston | | Minicomputer Collector / Enthusiast | Massachusetts, USA | | mailto:carl.friend@stoneweb.com | | | http://www.ultranet.com/~engelbrt/carl/museum | ICBM: N42:22 W71:47 | |________________________________________________|_____________________|

27 years, 10 months

AT&T 6300's

by sinasohn＠ricochet.net

At 12:42 PM 6/12/98 -0700, you wrote: >> Found a stack of AT&T computers. Some are labelled "PC 6300" (The unix PC, >> iirc?) but others are marked "6300 WGS", a designation I've not heard of > >The 6300 WGS (Work Group Server) was a tower cased system that was not These were (I'm pretty sure) desktops, almost identical to the PC 6300's, only wiht a cream colored front. --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

27 years, 10 months

Mini-Monitors?

by sinasohn＠ricochet.net

At 03:14 PM 6/12/98 -0400, you wrote: ><Does anyone know of a *cheap* source of a VGA-compatible display? What I ><looking for, especially, is low power usage, followed by compactness and ><portability. Thanks! > >I'm also interested in same and know someone that might like info. >There is a truck load of applications for a cheap/compact/lowpower >VGA display. > >Allison Geez, Allison, If I was a EE god like yourself, I'd grab me a coupla busted|older laptops and build an interface for the LCD screens. 8^) --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

27 years, 10 months

New toy, HP Apollo 4500, and it's broken...

by jfedorko＠virtualadmin.com

Sounds vaguely familiar, I remember two versions of the 2100s one had a black front panel w/red lights, the other one had a beige front panel. They were the CPU of HP2000 timesharing systems. They were pretty neat for their time (mid-70s) and I did my first "on-line" programming on them. The earlier ones boot off of paper tape, then the new technology... mylar oooh! I don't remember if they ever got weaned off tape booting though. Once you logged in you were at the command line and in a basic interpreter. They introduced me to instant gratification programming vs. waiting a day or so for the cards and the printout to come back or having to wire boards. Oh, yea... if it's one of the older ones, when the big oil filled capacitor goes in one of the disk drives the vented panel provides for spectacular visuals! If you don't want it, please let me know the details on it. -----Original Message----- From: museum(a)techniche.com [SMTP:museum@techniche.com] Sent: Saturday, June 13, 1998 3:36 PM To: Discussion re-collecting of classic computers Subject: Re: New toy, HP Apollo 4500, and it's broken... This is somewhat tangential, but I suspect whoever is reading about HP Apollo's may be able to contribute. I came across a rack mount system in the local surplus store. The faceplate reads "HP 2100c Programmable Microcomputer System". Any ideas what this is? Worth picking up? Jon >> >> <I got a apollo 4500. >> <It has a 68030 inside, and a 700-someodd meg MFM (?) harddisk. >> >> More likely SCSI (single 50pin cable) or EDSI (two cables like MFM). >> MFM drives topped out at 160mb or so, EDSI went to at least 400mb maybe >> higher. > >Definitely ESDI or SCSI. Although they could have had SMD or ESMD >as well. > >> >> <I have no idea what it runs. This one has a SummaSketch pad with it. >> <It was used for CAD stuff. >> >> Some kind of unix. > >Possibly, though the Apollo's ran Domain/OS which was Multics inspired >but later it went to BSD compatibility and looked like both Unix and >Multics. > >> >> Allison >> >> > >Actually, there are a lot of Apollo collectors out there and the video >card may be getable. The Apollos used 3C505's for ethernet and some other >Token ring interface. > >Bill > >+---------------------------------------------------------------------------+ >| Bill/Carolyn Pechter | 17 Meredith Drive | Tinton Falls, New Jersey 07724 | >| 908-389-3592 | Save computing history, give an old geek old hardware. | >| pechter(a)shell.monmouth.com | >+---------------------------------------------------------------------------+ >

27 years, 10 months

ESDI disks

by mbg＠world.std.com

>More likely SCSI (single 50pin cable) or EDSI (two cables like MFM). >MFM drives topped out at 160mb or so, EDSI went to at least 400mb maybe >higher. ESDI, and I know they can handle higher capacity disks (though I can't speak to the actual limit) as I have several ESDI disks which are 770mb unformatted (about 668mb formatted). A couple of them are the Hitachi DK515-78. I also have some Maxtor drives, but I don't remember their designation. Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry(a)zk3.dec.com | | Unix Support Engineering Group | (home): mbg(a)world.std.com | | Digital Equipment Corporation | | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

27 years, 10 months

Mini-Monitors?

by fauradon＠pclink.com

In Circuit Cellar this month there is an add from timeline inc. It has a 6" VGA LCD 640 X 480 Sanyo LMDK55-22 listed for $25. That is the only info given on the add. their phone number is (800) 872-8878 no web site :( Francois ------------------------------------------------------------- Visit the Sanctuary at: http://www.pclink.com/fauradon -----Original Message----- From: Rax <rax(a)warbaby.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Saturday, June 13, 1998 6:20 PM Subject: Re: Mini-Monitors? >>> <Does anyone know of a *cheap* source of a VGA-compatible display? What I >>> <looking for, especially, is low power usage, followed by compactness and >>> <portability. Thanks! >>> >>> I'm also interested in same and know someone that might like info. >>> There is a truck load of applications for a cheap/compact/lowpower >>> VGA display. >> >>At least small CGA and mono monitors have been cheap for a long time. >>Places that advertise in Electronics Now tend to have them for ~$30ish. >>They are usually open-frame. >> > >Also try Nuts & Volts magazine. Lots of ads from purveyors of all sorts of >goodies for the mad inventor that lurks inside each of us. > >R. > >-- > > > >Warbaby >The WebSite. The Domain. The Empire. >http://www.warbaby.com > >The MonkeyPool >WebSite Content Development >http://www.monkeypool.com > > Dreadlocks on white boys give me the willies. > > > > >

27 years, 10 months

Magazine values

by nerdware＠laidbak.com

Hi, gang. I'm just curious what old electronic magazines are worth. I haven't been able to find them in a price guide -- I have all the PE Altair issues (including the 680) and would like to know if they are worth anything I need to worry about insuring. Don't get excited -- I'm not going to part with them. It's just that I've heard that they're worth some money and I'd like to know. Thanks Paul Braun NerdWare -- The History of the PC and the Nerds who brought it to you. nerdware(a)laidbak.com www.laidbak.com/nerdware

27 years, 10 months

AT&T 6300's

by sinasohn＠ricochet.net

Found a stack of AT&T computers. Some are labelled "PC 6300" (The unix PC, iirc?) but others are marked "6300 WGS", a designation I've not heard of before. In any case, is anyone interested in them? They're available at a good price. Condition unknown, possible monitors/keyboards, but dunno. Lemme know if I should pick 'em up. --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

27 years, 10 months

Mini-Monitors?

by allisonp＠world.std.com

<Does anyone know of a *cheap* source of a VGA-compatible display? What I <looking for, especially, is low power usage, followed by compactness and <portability. Thanks! I'm also interested in same and know someone that might like info. There is a truck load of applications for a cheap/compact/lowpower VGA display. Allison

27 years, 10 months

CP/M

by peacock＠simconv.com

+AD4-Did MP/M run on Z-80s? BTW, is there a reasonable chance the CP/M on +AD4-one micro w/5.25+ACI- disks be compatible with another with 5.25+ACI- disks, +AD4-i.e. my apple with a C-128? Also, if a computer can run CP/M 3 can it +AD4-run eariler versions? (Note i'm not talking about apps here). Yes, MP/M ran on the Z80 first, then on the 8086. A multi-user Z80 was no speed demon but it was cheap compared to a PDP-11. BTW, the very first initial release of MP/M was actually coded for 8080, the task dispatcher did not save the extra Z80 registers. I discovered it the hard way, reported it to DRI, they fixed it right away. Apparently whatever machine they used to test MP/M was 8080 or 8085 based. Compatibility on floppies was about nil, very very few disks could be moved from one machine to another. If anything, 5.25+ACI- compatibility was worse than 8+ACI- floppies. Any Z80 machine that could run V3 had all the hardware needed to run V2. CP/M V1 was designed only for 8+ACI- SSSD floppies, the BIOS didn't have the drive tables in it to support anything else. Jack Peacock

27 years, 10 months

Hacked Mac and Other Systems

by foxnhare＠goldrush.com

I Remember a Computer Shopper (you know, back when there ware actually a few decent articles in it, as well as a ton of advertising) referred to those Mac Clones as 'HackIntoshes' Sounds appropriate to me... > From: "Zane H. Healy" <healyzh(a)ix.netcom.com> > Subject: Re: Early Mac Clones > > >bit hard getting a mac into a pc case though, remember that macs have all > >the connectors on board, > > > >desie > > Can't be any worse than the people that put Atari's or Amiga's in a PC > case. I've seen a Atari TT030 in a PC Tower, and it's quite popular among > Amiga people to tower their A1200's. All it takes is some creative cabling. > > Zane I have a set of texts on making a "Tower 64" (bundling a Commodore 64, Ram Expansion, drives, etc. in a tower PC case) which I have been seriously considering, actually I think I'd prefer a Tower 128 myself. Larry -- -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Larry Anderson - Sysop of Silicon Realms BBS (300-2400bd) (209) 754-1363 Visit my Commodore 8-Bit web page at: http://www.goldrush.com/~foxnhare/commodore.html -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

27 years, 10 months

New toy, HP Apollo 4500, and it's broken...

by museum＠techniche.com

This is somewhat tangential, but I suspect whoever is reading about HP Apollo's may be able to contribute. I came across a rack mount system in the local surplus store. The faceplate reads "HP 2100c Programmable Microcomputer System". Any ideas what this is? Worth picking up? Jon >> >> <I got a apollo 4500. >> <It has a 68030 inside, and a 700-someodd meg MFM (?) harddisk. >> >> More likely SCSI (single 50pin cable) or EDSI (two cables like MFM). >> MFM drives topped out at 160mb or so, EDSI went to at least 400mb maybe >> higher. > >Definitely ESDI or SCSI. Although they could have had SMD or ESMD >as well. > >> >> <I have no idea what it runs. This one has a SummaSketch pad with it. >> <It was used for CAD stuff. >> >> Some kind of unix. > >Possibly, though the Apollo's ran Domain/OS which was Multics inspired >but later it went to BSD compatibility and looked like both Unix and >Multics. > >> >> Allison >> >> > >Actually, there are a lot of Apollo collectors out there and the video >card may be getable. The Apollos used 3C505's for ethernet and some other >Token ring interface. > >Bill > >+---------------------------------------------------------------------------+ >| Bill/Carolyn Pechter | 17 Meredith Drive | Tinton Falls, New Jersey 07724 | >| 908-389-3592 | Save computing history, give an old geek old hardware. | >| pechter(a)shell.monmouth.com | >+---------------------------------------------------------------------------+ >

27 years, 10 months

CP/M

by maxeskin＠hotmail.com

Did MP/M run on Z-80s? BTW, is there a reasonable chance the CP/M on one micro w/5.25" disks be compatible with another with 5.25" disks, i.e. my apple with a C-128? Also, if a computer can run CP/M 3+ can it run eariler versions? (Note i'm not talking about apps here). >OK to fair. ;) It was file level password protection and required the >whole colume to be enabled for it. Security level was low though. If the >user could assemble and run a program they could write code to access the >disk directory and toggle the right bits and they had control. It was >aimed at captive applications where the user had limited resources and >could not get directly at the file system. Many of the things in CPM3 >are there to provice more direct compatability with MP/M. > >As to weird, no most of the additions they did were similar to the ZCPR >groups and other were doing in parallel and had sound basis. > >Allison > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 10 months

Old Alpha's (OT)

by photze＠batelco.com.bh

Hi. Just wanted to know if anyone out here knows where I can get an old alpha... (real old). Ciao, Tim D. Hotze

27 years, 10 months

New toy, HP Apollo 4500, and it's broken...

by allisonp＠world.std.com

<I got a apollo 4500. <It has a 68030 inside, and a 700-someodd meg MFM (?) harddisk. More likely SCSI (single 50pin cable) or EDSI (two cables like MFM). MFM drives topped out at 160mb or so, EDSI went to at least 400mb maybe higher. <I have no idea what it runs. This one has a SummaSketch pad with it. <It was used for CAD stuff. Some kind of unix. <The problem with it is, the video card appears to have died. <WHen I power the machine on (It has a VERY LARGE [21"] RGB monitor. Any <chance of me connecting it to a PC? It has 3 plugs, R G B, and expects <sync on green) and the monitor, I get garbage. The garbage is the same a it can be but I forget the modes required also you need a cable for it. Connecting to a PC is more trouble than its worth generally. Allison

27 years, 10 months

CP/M

by allisonp＠world.std.com

Max, Please clip off the unwanted parts of the message. <><The CP/M 3+ manual says the syntax is drive:12345678.123;password. <><Maybe it's a weird DR thing. They tended to add weird stuff... < <So, how DID it work? OK to fair. ;) It was file level password protection and required the whole colume to be enabled for it. Security level was low though. If the user could assemble and run a program they could write code to access the disk directory and toggle the right bits and they had control. It was aimed at captive applications where the user had limited resources and could not get directly at the file system. Many of the things in CPM3 are there to provice more direct compatability with MP/M. As to weird, no most of the additions they did were similar to the ZCPR groups and other were doing in parallel and had sound basis. Allison

27 years, 10 months

CP/M

by maxeskin＠hotmail.com

So, how DID it work? > >Password protection? There wasn't any as part of CP/M. ><The CP/M 3+ manual says the syntax is drive:12345678.123;password. ><Maybe it's a weird DR thing. They tended to add weird stuff... > >You didn't say CPM3! If you say CPM it is assumed the more common v2.x >version. V2.x did not have passwords, V3.0 did. Obviously if this apple >cpm card has V3 disks it it was a very late one or someone went to some >trouble to port v3 to it. FYI: v3 was not widely popular. > >Allison > > > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 10 months

Alloy Engineering tape drive

by allisonp＠world.std.com

<I have acquired the manuals, S100 controller, and cartridge tape <drive, but not the software, for an Alloy Engineering cartridge tape Alloy is still in business I believe. <This system came from a multi-user Concurrent CP/M 80286 system in the <early 80's. The system disk was pulled from the S-100 box when it was MID80s... the 286 on s100 was about 84-86ish. the earliest data I have >from intel is late 83 for the 286. good luck finding the software as it was never PD and alloy controllers where never that common that I've seen. Allison

27 years, 10 months

FW: DEC WT/78?

by allisonp＠world.std.com

<Hugh Henderson <hendronicus(a)hotmail.com> <saginaw, MI USA - Friday, June 12, 1998 at 18:07:56 < <I rescued a Digital WT/78 word terminal with a Digital RX02 computer <attached. Ok, the WT78 is one of DECs early compact word processing systems. The CPU is the intersil 6100 (PDP-8 reduced to a chip). The RX02 is nto acomputer but a disk box and controller for 256k/512k 8" floppies. (others in that family are the DECmate, DECmateII and DECmateIII) < It does try to boot, but I don't have the system disk. I'd sure love <to see the beast run. The images for the disks(both WPS and OS/78) are on the net and you would need a system that can create 8" disks. Alternately someone that has a system with RX02 disks (they were used on PDP-8, PDP-11 systems). < What does it run? What kind of processors does it use? It has network <and modem connections. The primary processor that runs the OS is a varient of the PDP-8 family reduced to a single chip. The disk system has it's own processor but that is not user programmable. It _does_not_ have network connections. The idea of a network at that time was unrealistic for such a low end machine. The modem connection however is eaxactly that and could be used to connect the machine to a host for file transfers. <How do you use those, and what were they originally for? It was originally used for word processing running WPS78, it also runs OS/78 an older PDP-8 operating system that looks a tiny bit like DOS. Allison

27 years, 10 months

Mini-Monitors?

by allisonp＠world.std.com

<That's why my LCD panel sits in the box. :-( < <> There are (were?) a few vendors that made very nice single chip solutio <> for converting base VGA into something an LCD could use. <> <> Hitachi? < <Ooh! Does anyone have a relevant Hitachi data book? My assessment is that for the display I have to convert serial video (VGA) to two 4 bit parallel streams for a partitioned display is unrealistic. The next simpler option if to generate video directly in the form required for the display and that is also somewhat ponderous. I didn't see anyhting suitable on the Hitachi site. Allisom

27 years, 10 months

CP/M

by allisonp＠world.std.com

Password protection? There wasn't any as part of CP/M. <The CP/M 3+ manual says the syntax is drive:12345678.123;password. <Maybe it's a weird DR thing. They tended to add weird stuff... You didn't say CPM3! If you say CPM it is assumed the more common v2.x version. V2.x did not have passwords, V3.0 did. Obviously if this apple cpm card has V3 disks it it was a very late one or someone went to some trouble to port v3 to it. FYI: v3 was not widely popular. Allison

27 years, 10 months

FA: Various systems

by tomowad＠earthlink.net

> Auction services have their place, but I think that we on the list >should be given the "right of first refusal". If one of the list members has >something to sell, give the others a first crack, with some time limit (like >a week), before listing it on eBay or Haggle. Perhaps list subscribers who wish to list their items on an auction service could offer a discount to other subscribers (e.g. "Mention you saw this add on the Classic Computers mailing list and get 10% off."). This way the seller gets the higher prices of the auction services while at the same time offering an advantage to list subscribers. Tom Owad

27 years, 10 months

Alloy Engineering tape drive

by peacock＠simconv.com

I have acquired the manuals, S100 controller, and cartridge tape drive, but not the software, for an Alloy Engineering cartridge tape drive. I have two manuals, the Interface Guide For the IDXS-100, and TIP (Tape Interchange Package) Operator's Guide, both dated 1981. The tape drive is an early 3M cartridge tape, capacity of about 14MB formatted. I also have a big box of backup tape cartridges. This system came from a multi-user Concurrent CP/M 80286 system in the early 80's. The system disk was pulled from the S-100 box when it was retired, and the original floppies are long gone. I figure if I can find either a Z80 or 8086 version of the TIP program I can get the system directory off the backup tapes. Does anyone know more about these tape drives? A binary of the TIP program? Jack Peacock

27 years, 10 months

Mini-Monitors?

by peacock＠simconv.com

>There are (were?) a few vendors that made very nice single chip solutions >for converting base VGA into something an LCD could use. > >Hitachi? > Cirrus Logic made LCD controllers that would drive an LCD and also an external monitor. I have an older Compal TS-38 laptop with the chip, driving a dual scan color LCD, but with a switch to go to an external monitor.

27 years, 10 months

IIRC

by fauradon＠pclink.com

I've seen Him/Them Beign flamed about it on some newsgroup (pretty funny too), other than that Have no idea. Francois ------------------------------------------------------------- Visit the Sanctuary at: http://www.pclink.com/fauradon -----Original Message----- From: Doug Yowza <yowza(a)yowza.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, June 11, 1998 11:56 PM Subject: Re: IIRC >On Thu, 11 Jun 1998, Francois wrote: > >> Well, "If I Recall Corectly" that's what it means. > >BTW, whatever happened to lisard/communa? The consistency with which >"they" used pronouns was impressive: IIRC -> iwrc. > >-- Doug >

27 years, 10 months

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test-drb