- test-drb@ccmp.vtda.org - classiccmp.org

Tips needed to repair Apple color composite monitor

by dastar＠ncal.verio.com

I just bought an Apple color composite monitor that needs some work. It comes on fine, and the screen goes to a bright white if I turn up the brightness. When I plug it into the computer the picture doesn't change a lick. I tried messing with all the settings to no avail. The picture stays a field of white. Any tips on how to proceed diagnosing this thing? I've got it opened up, the digital VOM is on and the soldering iron is hot. Sam Alternate e-mail: dastar(a)siconic.com ------------------------------------------------------------------------------- Ever onward. September 26 & 27...Vintage Computer Festival 2.0 See http://www.siconic.com/vcf for details! [Last web site update: 08/09/98]

27 years, 11 months

2
3
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by pjoules＠joules.enterprise-plc.com

Found these amongst Linux 'fortunes': PIC Punch Invalid Card POPI Punch Operator Immediately PVLC Punch Variable Length Card RASC Read And Shred Card RPM Read Programmers Mind RSSC Reduce Speed, Step Carefully (for improved accuracy) RTAB Rewind Tape And Break RWDSK Rewind Disk RWOC Read Writing On Card SCRBL Scribble to disk (faster than a write) SLC Search for Lost Card SPSW Scramble Program Status Word SRSD Seek Record and Scar Disk STROM Store in Read Only Memory TDB Transfer and Drop Bit WBT Water Binary Tree

27 years, 11 months

1
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Cheap Computing

by jfoust＠threedee.com

I'm not sure if he falls under the ten-year rule, but here's a link to a columnist preaching the usefulness of "junk" computers on a regular basis: <http://www.andovernews.com/cgi-bin/news_column.pl?123> - John

27 years, 11 months

1
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Shame, shame, shame

by fauradon＠pclink.com

Seen at: http://www.amnewsabuse.com/aafamily.htm -Quote Honey Sit On This For A Second So I Can Adjust It: - Corvallis OR is hosting Da Vinci Days beginning Friday - a three day festival featuring a contest to see how far you can hurl an obsolete personal computer with a big wooden medieval catapult. (Jul 15 '96) -End quote I think we should massively e-mail their chamber of commerce about the enormous stupidity of that event, this is an event supposed to celebrate technology not destroy it! Francois

27 years, 11 months

7
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Name this chip

by jeff.kaneko＠ifrsys.com

At 09:12 PM 8/24/98 -0500, you wrote: > >< Oh, you mean like a National 8X300? > >No national 8x300 was the second source. ;) OIC. Hm, up to this point I thought it was all National's idea. Did the 8X305 belong to SMS also? Or was the enhanced chip a National invention? >SMS was the creator. An 8bitter design for DSP at better than 6mhz >throughput. Very non-Von machine with very seperate instruction and >data paths. That's a Harvard archetcture, right? Jeff

27 years, 11 months

1
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UNSUBSCRIBE

by dastar＠ncal.verio.com

The correct way to unsubscribe is to send a message to listproc(a)u.washington.edu with the line below being the only one in the message: unsubscribe classiccmp Posted publicly for the benefit of all. See end of post for better instructions I got back from the listproc after my failed first attempt to explain this. On Tue, 25 Aug 1998, C. Boyer wrote: > Must unsubscribe for a week or so while my > wife & I move into our new home. > > Has a nice BIG basement....unfinished....1950sq ft.......hmmm! > > Cliff Boyer > Computer collector with small but growing collection! > Sam Alternate e-mail: dastar(a)siconic.com ------------------------------------------------------------------------------- Ever onward. September 26 & 27...Vintage Computer Festival 2.0 See http://www.siconic.com/vcf for details! [Last web site update: 08/09/98] ---- Dear user, every time you send email to list CLASSICCMP the system analyzes the first line of your message in order to catch misdirected requests. It appears that the first line in your message may have been such a request: UNSUBSCRIBE CLASSICCMP The first word, "UNSUBSCRIBE", matches one of ListProc's command words, and as a result your mail was not distributed to the list. If your intent was to send a request please resend it to the command processor listproc(a)u.washington.edu (not classiccmp(a)u.washington.edu). If your intent was to post a message to this list please rephrase the first line of your message so that it does not look like a request and resubmit it to classiccmp(a)u.washington.edu, and please accept our apologies for the inconvenience. If you need further assistance please contact the owner(s) bcw(a)u.washington.edu .

27 years, 11 months

1
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Anybody want this stuff?

by museum＠techniche.com

Hi Scott, I think I'd be interested in the xerox and the Amstrad. Are they spoken for yet? Where are you located? I'm in NH. Thanks, Jon ================== >Hello All: > >I was lucky enough to buy the old building downtown where I have stored >and worked on all my old machines over the past three years, but >renovation is starting soon and some of this stuff has to GO! I wondered >if any of you are interested in any of this stuff: > >LOTS of PCJr parts (most new in the box) >Several complete working Juniors, one with expanded RAM, 2nd story 3.5" >720K floppy, and Ramdrive. Some really interesting software for these, >original M'soft Flight Simulator, Lotus 123 (on cartridge rom for pete's >sake), even an accounting software package. and others! > >1 Amstrad PC640 w/software (and a lot of spare parts and monitors for >same). > >1 Apple IIe ( w/ 2 floppies, monitor, just a few pieces of software, a >couple of original manuals w/disks) >1 Amdek Apple color monitor (one RCA Video-in jack) > >LOTS of PC XT's (doesn't everyone want one of these?) > >1 Xerox 16/4 with COMPLETE documentation, machine boots and runs fine >from floppy, but HDD fails to pass initialization (think it needs a new >controller card). > >MUCHOS basic Commodore stuff, no fancy REU's or anything, but several >complete working systems with matching floppy drives, C64, C64c, Vic20. >Also C128, C16, piece of a Colt 286. Also 1 non-working PET 2001. >Printer interface for C64. > >2 Hewlett Packard things (I think I promised these to a listmember in >Florida, if you are reading this, please get in touch, as I have >forgotten your name!) > >Anyway, if you can use any of this stuff, please contact me. I don't >expect to get rich off the sales and I'd rather another collector get it >than dumpsterize it. I live in Eastern NC so factor that into the >shipping. I will try to make a more complete inventory of this stuff and >put it on my website if there is enough interest in it. > >Kirk Scott >scottk5(a)ibm.net >

27 years, 11 months

2
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Name this chip

by allisonp＠world.std.com

Hm, up to this point I thought it was all National's idea. < Did the 8X305 belong to SMS also? Or was the enhanced < chip a National invention? Nope, Signetics improved it under cross license to SMS. < That's a Harvard archetcture, right? To the rest of us up here it's Hahvad. ;) Allison

27 years, 11 months

1
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Ataris

by Anthony.Dellett＠Staples.com

> On 24 Aug 98 at 21:02, Uncle Roger wrote: > > > At 11:45 AM 8/24/98 PDT, you wrote: > > >Today I saw an Atari 5?0ST and an 800XL. As I understand, > the ST ran > > >GEM. Is this an interesting computer at all? What about the XL? Was > > >this one of the BASIC computers? > > > > 520ST does indeed run GEM; it's about equivalent to a Mac > Plus or so. > > Not to start a flame-war or anything but I have a 4 meg Mac+ > and there's no > way it is the equivalent of an ST. The only thing they had in > common was the > 68000 processor. In productivity applications, games, music > programs, graphics, > and ease of use it is vastly superior. The proper comparison > would be the > Amiga, which excelled in graphics versus the ST which > excelled in music. Their > capabilities IMHO exceeded the later 386 and with the various > add-ons is > still my machine of choice when not on the net. It's just a > pleasure to use. I'd like to chime in here. The Amiga was a great machine for Graphics, Video, AND music during it's time (which is still ongoing). It was very easy to attach a midi interface and there were alot of really killer sequencers available. Plus, the Amiga bore the MOD music file format!

27 years, 11 months

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UNSUBSCRIBE

by homeline＠ezl.com

Must unsubscribe for a week or so while my wife & I move into our new home. Has a nice BIG basement....unfinished....1950sq ft.......hmmm! Cliff Boyer Computer collector with small but growing collection!

27 years, 11 months

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Floats (was: Shame, shame, shame)

by maxeskin＠hotmail.com

Hey, how about Soviet military parades? Best of both worlds! > >At 05:34 PM 8/24/98 -0500, you wrote: >> >>Myself, I prefer dancing and singing to celebrate things. What happened >>to dressing up in costumes and building floats and giving away free stuff >>like candy or food? >> >>Ah well... > >Blame the lawyers and the liabililty laws... (from a one time float >builder and one who remembers when it was actually fun to be in a parade) > >-jim > >--- >jimw(a)agora.rdrop.com >The Computer Garage - http://www.rdrop.com/~jimw >Computer Garage Fax - (503) 646-0174 > > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 11 months

1
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Shame, shame, shame

by maxeskin＠hotmail.com

I was going to suggest that but since I've never used them, I was afraid someone might like them. Why the Altair, though? How about we all pitch in and build a nuclear-powered electromagnetic mass driver to hurl the ENIAC into space (inadvertentley destroying an oncoming alien fleet and being the saviours of the world)? > >< > Here's a question: what _obsolete_ computer would you choose for this >< > miracle machine, assuming you have unlimited power? >< >< I'd get out my best documentary camera, place an Altair on the catapult >< and then film you guys trying to catch it. :-) > >I'd want to be the one pulling the catapult release. ;) > >But, before I did that one it would be a TI99/4a... nice cpu hobbled by a >really bad design. > >Allison > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 11 months

1
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Shame, shame, shame

by Philip.Belben＠powertech.co.uk

Anthony Clifton wrote: > It never ceases to amaze me that, when offered an opportunity to > celebrate in a positive manner, groups of people will choose to smash, > burn and destroy things instead. If it were some kind of demonstration > against a particular company for some kind of social violations, it least > smashing a computer made by that company would have some kind of symbolic > purpose (albeit still a negative one). But to just smash something for > the hell of it. > > I think there's a song about smashing a "perfectly good guitar." > > Myself, I prefer dancing and singing to celebrate things. What > happened to dressing up in costumes and building floats and giving away > free stuff like candy or food? I was hoping not to get drawn into this somewhat strange thread, but... I agree with Anthony. (Why is smashing pottery always such a popular sideshow at the fair?) I have noticed a similar trend in other areas, such as sponsored events to raise money for charity. People always want to be sponsored to do something useless like walking 1000 miles or jumping out of an aeroplane (airplane). If it's a worthwhile cause they are supporting, I'll go ahead and sponsor them, but why can't we have sponsored events like "Pick up all the litter in the neighbourhood - sponsorship per bag collected"? The worst thing is, no-one would sponsor people to do something useful because "Aren't the council supposed to be doing it anyway? Why am I paying council tax? [Rant, Rant]" Sad, but that's human nature for you. Philip.

27 years, 11 months

1
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Lisa 2 conversion from Mac XL

by Marion.Bates＠Dartmouth.EDU

Oops...next time maybe I'll notice the earlier reply. Duh... ;p -- MB

27 years, 11 months

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Lisa 2 conversion from Mac XL

by Marion.Bates＠Dartmouth.EDU

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27 years, 11 months

1
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Ataris

by sinasohn＠ricochet.net

At 11:45 AM 8/24/98 PDT, you wrote: >Today I saw an Atari 5?0ST and an 800XL. As I understand, the ST ran >GEM. Is this an interesting computer at all? What about the XL? Was >this one of the BASIC computers? 520ST does indeed run GEM; it's about equivalent to a Mac Plus or so. 512K RAM, (unless expanded) 68000 CPU. What it does have that other machines in the same class (early Mac's, early Amigas) don't have is built-in MIDI ports for connecting to musical keyboards and synthesizers. That's what I (would) use in my studio (if I had it all set up) for composition and sequencing. (Doncha just hate moving?) The 800XL is an updated version of the venerable 800. Has BASIC built-in and only one cartridge. Nice machine.

27 years, 11 months

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Ataris

by maxeskin＠hotmail.com

Today I saw an Atari 5?0ST and an 800XL. As I understand, the ST ran GEM. Is this an interesting computer at all? What about the XL? Was this one of the BASIC computers? ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 11 months

4
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Shame, shame, shame

by maxeskin＠hotmail.com

Well, I don't necessarily see anything wrong with once in a while destroying a useless piece of junk, like a PC or a C64 (despite popular belief, third world countries will _not_ be better off with more computers). In general, moderated violence is vital in society, so that unmoderated violence is not as common. Singing and dancing is good too, but remember that Cain is the one who was a vegetarian. Of course, I have no idea why people showing off technology would want to do it by smashing stuff. Ah, that's life... >The whole exercise is such a Beavis and Butthead thing to do. > >It never ceases to amaze me that, when offered an opportunity to >celebrate in a positive manner, groups of people will choose to smash, >burn and destroy things instead. If it were some kind of demonstration >against a particular company for some kind of social violations, it least >smashing a computer made by that company would have some kind of symbolic >purpose (albeit still a negative one). But to just smash something for >the hell of it. > >I think there's a song about smashing a "perfectly good guitar." > >Myself, I prefer dancing and singing to celebrate things. What happened >to dressing up in costumes and building floats and giving away free stuff >like candy or food? > >Ah well... > >Anthony Clifton - Wirehead > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 11 months

4
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Lisa 2 conversion from Mac XL

by Marion.Bates＠Dartmouth.EDU

--- Tony Duell wrote: > > RE: the discussion on converting the Sun Remarketing Mac XL back to a Lisa > 2 - I called Sun Remarketing and spoke with their most knowledgable Lisa > person (thanks Marion!) who was less than encouraging about the project. > According to him, it is not just replacing a few ROMs and PALs, and removing > a transformer from the CRT yoke - it requires replacing the main logic board > from an original Lisa, and unless you have a wrecked Lisa, that item may be > a little hard to find. I thought the only difference between the logic boards was the PROMs/PALs. Of course, not owning a Lisa, I can't be sure about this, alas... --- end of quote --- This is what I've heard, too. In fact, one of the newer Lisa gizmos sold by Dafax is a "ROM switcher" so you can use both the original Lisa H-roms and the modification 3A-roms without further tinkering. (I guess you'd just put up with oval circles and whatnot in Mac apps, since the ROM switcher doesn't do squat about changing the video.) All these repair manuals say "hang onto your old ROMS so you can run Lisa stuff in the future" which seems to indicate that it's feasible to revert the change. ??? -- MB

27 years, 11 months

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2
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Odd Q-Bus questions 18/22bit

by allisonp＠world.std.com

< Thanks, that's about the sort of detail I needed (I assume that was jus < written from memory).... mostly. < One question, what's the difference between the AB and CD slots in the < backplane? varies. There are generally two styles of cards dual width (AB) and quad width (ABCD) and two styles of backplane those that are bussed with the same signals on AB/CD pairs and those that are bussed on the AB side and the CD has a unique bussing for user configs and special use. Allison

27 years, 11 months

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Shame, shame, shame

by jimw＠agora.rdrop.com

At 03:29 PM 8/24/98 -0700, you wrote: > >Max, depending on how large this catapult is, and therefore how high the >object goes, an object hurling back to earth at 100MPH would certainly end >up in state hardly susceptible to repair. Just for accuracy sake, they fling using a trebuchet (sp?), not a catapult. Lest my SCA associates get their mail in a bunch... B^} (also; I've not made it down to monitor the goings on either...) -jim --- jimw(a)agora.rdrop.com The Computer Garage - http://www.rdrop.com/~jimw Computer Garage Fax - (503) 646-0174

27 years, 11 months

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Memorex Telex 286 Info Needed

by SUPRDAVE＠aol.com

In a message dated 98-08-24 23:36:05 EDT, you write: << Have a Memorex Telex model B7000000 286 machine in a slim line case and a 3.5" floppy on a riser and a Quantum Prodrive 40S hard drive. As per the usual, the setup is botched and the hard disk is not recognized >> I have heard of "generic" IBM AT setup programs available that might work on this and my nonfunctioning mitsulaptop 286. can anyone provide web sources for these setup programs?

27 years, 11 months

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Memorex Telex 286 Info Needed

by rhblake＠bbtel.com

Have a Memorex Telex model B7000000 286 machine in a slim line case and a 3.5" floppy on a riser and a Quantum Prodrive 40S hard drive. As per the usual, the setup is botched and the hard disk is not recognized. I have the usual generic setup utilities but am hesitant on doingt hat since the 40S is an SCSI drive. Does anyone know if this machine is a software setup or keystroke started CMOS and where to get the setup program or what the keystroke(s) are. This is getting set up to help a homeschooling single mom out here and it would suit her need fine once I can access the setup. -- -------------------------------------------------------------------- Russ Blakeman RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144 Phone: (502) 756-1749 Data/Fax:(502) 756-6991 Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com Website: http://members.tripod.com/~RHBLAKE/ ICQ UIN #1714857 AOL Instant Messenger "RHBLAKEMAN" * Parts/Service/Upgrades and more for MOST Computers* --------------------------------------------------------------------

27 years, 11 months

1
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Strange MITS ad.

by ddameron＠earthlink.net

Hi Doug and all, At 07:51 PM 8/24/98 -0500, you wrote: >On Mon, 24 Aug 1998, Richard A. Cini, Jr. wrote: > >> While in the process of examining my old P-E and R-E magazines, I came >> across an ad for MITS from mid-1974. The ad was for a 4-channel digital >> handheld memory scope (model MS416) for $189. It seems to be a simple >> digital logic analyzer. > >I think Dave mentioned that ad a few days ago, and I've seen one too. >MITS made a bunch of other stuff before they made the Altair. Stan Veit >tells the story about MITS and the Altair in his book "History of the >Personal Computer." He mentions that Roberts had done a "built your own >calculator" project for P-E. Anybody know which issue that was? > >-- Doug > I don't have this issue, but the Dec. 71 index shows for the November '71 issue: "An electronic desk calculator you can build", by Roberts, page 27. Later in the Oct. -Dec. 1974 issues he had a digital logic course with a low cost terminal- 3 octal digits. In the 1974 Electronic Experimenter's Handbook, there was a 6/9/12 digit hand-held calculator by Lorinda Russell amd Bill Yates of MITS. I don't know what P.E. issue this is from. This issue also had 2 articles by Harry Garland and Roger Melen, including the "Muscle Whistler". I still have one. Later Cromemco had a similar relation with P.E. For example, in the Feb. 1976 issue was the "TV Dazzler" article. -Dave

27 years, 11 months

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Strange MITS ad.

by allisonp＠world.std.com

< While in the process of examining my old P-E and R-E magazines, I ca < across an ad for MITS from mid-1974. The ad was for a 4-channel digital < handheld memory scope (model MS416) for $189. It seems to be a simple < digital logic analyzer. < < Does any one have info on this? If anyone's interested, I'll post th < picture. If you dig a bit further back in the issues you find it as a project. logic analyser is far more than it was. Allison

27 years, 11 months

1
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Logical Disks and RT-11

by mbg＠world.std.com

To create a logical disk: create file.dsk/alloc:494. (rx01 size, RX02=988, rx50=800) mount ld0 file.dsk dk (mount as LD0, assign ld0 dk) init/bad/noq dk: (impose a directory structure) now proceed to use ld0 as you would any other device... If you already have a disk image with stuff in it.. mount ld0 image.dsk dk (mount existing file as ld0, assign ld0 dk) dir (get a directory) Again, just use it as you would any other disk volume. Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry zk3.dec.com | | Unix Support Engineering Group | (home): mbg world.std.com | | Compaq Computer Corporation | addresses need '@' in place of ' ' | | 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, 11 months

2
1
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TOPS for PC, from sun

by peacock＠simconv.com

>Well, it says that it is a full networking OS that allows mac's and PC's to communicate, etc. seems somewhat along the lines of what francois has. also has a "secret proprietary etc etc" program disk called "RTERM", circa 1985. Daniel A. Seagraves wrote: > > If it is what I immediately thought it was, (Which it can't be, > DEC owned TOPS, not Sun...) *I WANT A COPY!* > > (TOPS-20 on a PC! The horror!) > ------- Seems there is some confusion here. TOPS-10 and TOPS-20 were DEC operating systems for the 36-bit DEC-10 and DEC-20 mainframes, circa late 60's (DEC-10) thru late 70's (DEC-20). TOPS dies when the VAX came out, thought there are vestiges left in VMS. The TOPS networking cards were essentially Appletalk cards for PCs. It was a low speed network using a Z80 SIO (or SCC?) serial USART and RS-422 drivers instead of RS-232. IIRC the speed was around 230Kbits/second (I have one in the back of a closet, haven't looked at it for a while). No relation to the TOPS operating system at all. Jack Peacock

27 years, 11 months

3
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Name this chip

by allisonp＠world.std.com

< Oh, you mean like a National 8X300? No national 8x300 was the second source. ;) SMS was the creator. An 8bitter design for DSP at better than 6mhz throughput. Very non-Von machine with very seperate instruction and data paths. < Westen digital used 8X300's for awhile on disk controllers. < Alot of PC <-> Mainframe adaptors used 'em too . . . Yep. Allison

27 years, 11 months

1
0
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Parallel-IDE interface for CP/M

by bobstek＠ix8.ix.netcom.com

Allison - IIRC, you were about to write some code to hook up one of these parallel-IDE HD kits to a CP/M machine with an EPP. Could this be made into a more generic project to allow file transfer over any CP/M parallel port? I for one would like to be able to transfer CP/M files from a variety of old systems to a portable IDE drive which could also be read on my PC in order to make archival copies of software for CD-ROMs. And I think there would be other interested parties as well. On another matter, thanks for the RAM 17 manual. And I'm sending you 2 unopened boxes of Dysan 10-hole hard sectored disks for your N*, plus another dozen of used, but perhaps not as used as some of yours, N* disks. Bob Stek bobstek(a)ix.netcom.com

27 years, 11 months

3
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Shame, shame, shame

by maxeskin＠hotmail.com

Well, it'll fit into the landfill better anyway... Here's a question: what _obsolete_ computer would you choose for this miracle machine, assuming you have unlimited power? My choice would have to be an IBM PC just to vent.. > >> Plus consider that you could then ask for the smashed machines and >> restore them. THere is unlikely to be any serious damage except >> drives and CRTs. You could certainly scrounge the chips. > >Max, depending on how large this catapult is, and therefore how high the >object goes, an object hurling back to earth at 100MPH would certainly end >up in state hardly susceptible to repair. > >Sam Alternate e-mail: dastar(a)siconic.com >------------------------------------------------------------------------------- >Ever onward. > > September 26 & 27...Vintage Computer Festival 2.0 > See http://www.siconic.com/vcf for details! > [Last web site update: 08/09/98] > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 11 months

4
3
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Strange MITS ad.

by rcini＠email.msn.com

Hello, all: While in the process of examining my old P-E and R-E magazines, I came across an ad for MITS from mid-1974. The ad was for a 4-channel digital handheld memory scope (model MS416) for $189. It seems to be a simple digital logic analyzer. Does any one have info on this? If anyone's interested, I'll post the picture. Rich Cini/WUGNET <nospam_rcini(a)msn.com> - ClubWin/CW7 - MCP Windows 95/Windows Networking - Preserver of "classic" computers <<<< ========== reply separator ========== >>>>>

27 years, 11 months

2
1
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Odd Q-Bus questions 18/22bit

by mbg＠world.std.com

Huw Davies <H.Davies(a)latrobe.edu.au> wrote: >One question, what's the difference between the AB and CD slots in the >backplane? On *some* backplanes, there is no difference. A dual-high board could be plugged into the CD side just was successfully as in the AB side. In other backplanes, the AB side is the Qbus side, and the CD side is set to connect adjacent boards so that they can communicate (such as the VSV11, the RLV11, and the 11/83 and its PMI memory). In yet other backplanes, you find that it is Qbus in the AB slots and CD bus in the CD slots for part of the backplane (BA23 = three slots, BA123 = 4 slots) and then it switches to Qbus in both the AB and the CD sides. Bottom line -- make sure you know what backplane you are plugging boards into before you do so. Also, make sure that quad-high options which can plug into both Q/CD and Q/Q have the CD jumpers on the board set correctly. Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry zk3.dec.com | | Unix Support Engineering Group | (home): mbg world.std.com | | Compaq Computer Corporation | addresses need '@' in place of ' ' | | 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, 11 months

1
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Switched on Bach

by H.Davies＠latrobe.edu.au

At 11:20 AM 24-08-98 -0700, Jack Peacock wrote: >>This is an old auction on eBay I happened to run across. Perhaps this >item is still available: > >>MOOG Walter Carlos- Switched on Bach Mint Item #23979261 > >Was there a reserve? I have one too, from high school days but hardly >in mint condition, it's been played many times. For the last 15 years >I've used a copy on cassette I still play every few months, the 3rd >Brandenburg was a favorite. Well it (and a lot of Carlos' other works are available on CD). I used to use this sort of music to program to, but I'm more into the original arrangements for programming now (not that I do a lot at the moment, but there is this nice program I want to write for work that could end up written in BCPL for old time's sake :-) Huw Davies | e-mail: Huw.Davies(a)latrobe.edu.au Information Technology Services | Phone: +61 3 9479 1550 Fax: +61 3 9479 1999 La Trobe University | "If God had wanted soccer played in the Melbourne Australia 3083 | air, the sky would be painted green"

27 years, 11 months

1
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Shame, shame, shame

by peacock＠simconv.com

>> Myself, I prefer dancing and singing to celebrate things. What happened > to dressing up in costumes and building floats and giving away free stuff > like candy or food? >Rape and pillage is far greater fun. Robert Duvall said it best in Apocalypse Now: "I love the smell of napalm in the morning. It's the smell of...victory." In this case, victory over every bug-ridden PC ever made. Jack Peacock

27 years, 11 months

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Odd Q-Bus questions 18/22bit

by allisonp＠world.std.com

< I'm about to expose a lack of understanding of Q-bus, but do you need a Dig up a PDP-11 Qbus book, most had a good description of the bus and bus protocals. < slot for uVAX-II memory given that it has the PMI (private memory CDbus is used for PMI too. < interconnect)? As you can tell, I'm not up there with Q-bus specifics an < all the uVAX Q-bus systems I've used came with a suitable back plane (a < vast cost at the time from Digital :-) Makes it a lot easier. Alliosn

27 years, 11 months

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Shame, shame, shame

by peacock＠simconv.com

>It never ceases to amaze me that, when offered an opportunity to celebrate in a positive manner, groups of people will choose to smash, burn and destroy things instead. If it were some kind of demonstration against a particular company for some kind of social violations, it least smashing a computer made by that company would have some kind of symbolic purpose (albeit still a negative one). But to just smash something for the hell of it. How odd, seems like a natural thing to do. Many's the time I'd like to have taken the PC under my desk, loaded it into the trusty old trebuchet and slung it across the countryside. As for wanton destruction, don't knock it till you try it. Last month I had the opportunity to fire a 75mm cannon at some cars, wasted a really nice Subaru. Then I got to watch as the rest of the cars were strafed by a .50 Browning from a helicopter. It's a great feeling to watch a Lincoln being blown apart. We surely do live in the best of times. Jack Peacock

27 years, 11 months

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Odd Q-Bus questions 18/22bit

by allisonp＠world.std.com

< Well I'm not really a Qbus person. I never got into PDP-11s much and apa < from adding and removing boards from a uVAX-II didn't get to play with Q < much. The sort of thing I'm looking at is a little more sophisticated th < "a bus is something that connects cards together" but a little less bori < than a dry description of arcane features of signal timing and decay < (although I've read plenty of these in my time). let's see if I can do a little on this. Q-bus DECs compaction of Unibus. Qbus is a time multiplexed, asychronous, 16bit data and depending on age of the system 16, 18 or 22 bit address. It has termination and controlled loading to allow operation at high spped using open collector drivers. While a 16 bit bus it also supports various byte transfers. Q-bus is compact and fairly sparce in signals but supports memory, device, interrupt and DMA transfers using the bus data lines and a set of 10 control signals. There are other signals present for processor control such as RUN, PowerOK and Binit are examples. There are more pins than actual signals, some are redundant power for example. There are lines for bus mastering, DMA and interrupt grant/ack are examples. Most devices fall into several loose catagories, IO and memory. The lower 16bits are multiplexed on the bus before every transaction using the same lines data will be transferred on. Cards use BSYNC to capture address and start any bus cycle that pertains to them. Memory is fairly straight forward in that its timed off bsync and will use the other 9 signals to synchronize it's operation. Transactions will be read (word/byte) or write (word/byte). One of the characteristices of PDP-11s is they always read before write (a read modify write cycle is the normal thing). IO devices are identical to memory and by convention and use of BBS7 are located in the top page of the 32KW address space (1 11x xxx xxx xxx xxx). The remaining transacions of not are interrupts and DMA. Interrupts are posted via a request line that can be superceeded by another board physically (buswise) closer to the CPU and will be granted by the CPU to the higest(closest) requestor then and acceeding requesting modules. When an interrupt is granted the board will place a byte(7 bits lowest set to 0) VECTOR on the data bus that the processor will use as a pointer to a table in the first 512byts of ram (interrupts vector table PSW and interrupts service address is located in two words). DMA also has a grant acknowledge and positional priority. Once granted DMA may proceed with byte or word transfers of any length, though generally restricted to short bursts to avoid hogging the bus. The basic signals are: BDAL 0->15-L -L denotes active low signal BSYNC-L BBS7-L Predecoded bank 7 signal (IO bank) BAIKO-L Bus interrupt acknowledge BWTBT-L Bus Write Byte BRPLY-L Bus Cycle reply (must be supplied to continue the cycle or a bus time out error occurs) BDIN-L Bus Data IN toward CPU BDOUT-L Bus Data OUT -> to module Bus cycles have a distinct protocal (sequence) and timings. < Does this narrow it down a little? I'm sort of surprised that there isn' < nice description on the web somewhere.... Me too, though trivial it's not. I tried to avoid a description of each line as that is quite lengthly. Allison

27 years, 11 months

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Name this chip

by jeff.kaneko＠ifrsys.com

At 04:48 PM 8/24/98 -0500, you wrote: > >< SMS300-1 >< 0002624 >< 001 A 7620 on it > >An early bipolar processor (very strange) that was often used for signal >processing or stuff like hard disk controllers. > >Allison > Oh, you mean like a National 8X300? Westen digital used 8X300's for awhile on disk controllers. Alot of PC <-> Mainframe adaptors used 'em too . . . Jeff

27 years, 11 months

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Shame, shame, shame

by SUPRDAVE＠aol.com

In a message dated 98-08-24 19:01:57 EDT, you write: << Here's a question: what _obsolete_ computer would you choose for this miracle machine, assuming you have unlimited power? >> how about any of the IBM family one series? there's plenty of them and no shortage of them except for the 5155 and 5140 maybe. i'd keep those. david

27 years, 11 months

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Shame, shame, shame

by maxeskin＠hotmail.com

Plus consider that you could then ask for the smashed machines and restore them. THere is unlikely to be any serious damage except drives and CRTs. You could certainly scrounge the chips. >> I think we should massively e-mail their chamber of commerce about the >> enormous stupidity of that event, this is an event supposed to celebrate >> technology not destroy it! > >If it is an XT, VAX, C64, Amiga, or whatever - I think humanity could >spare one for a bit of fun. > >William Donzelli >william(a)ans.net > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 11 months

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IMSAI disks

by allisonp＠world.std.com

< sent us a cardboard baffle to try to get it to work but the only real < solution for us was to use a different brand of 8" drive. Did anyone < ever have a good experience with Calcomp floppy drives? DEC used the mechanics and heads for the RX01 and RX02 disks with good results. The electronics however were DEC built. < This was pre-CP/M days, we used the floppy as a sort of fast paper tape < replacement, keeping a manual directory of tracks which held code. I < patched in a crude driver to the ALS-8 assembler development ROM system < from Processor Tech to read/write memory blocks onto the floppy. It's needs for a seperate CPU and a NEC D372 controller is familiar. The grandfather to the design was used as a proto for a NEC TECH note which I have. I used a version that for a NEC (NOT S100) PDA80 development system and it worked ok with good drives. Allison

27 years, 11 months

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Lisa 2 coversion from Mac XL

by bobstek＠ix5.ix.netcom.com

RE: the discussion on converting the Sun Remarketing Mac XL back to a Lisa 2 - I called Sun Remarketing and spoke with their most knowledgable Lisa person (thanks Marion!) who was less than encouraging about the project. According to him, it is not just replacing a few ROMs and PALs, and removing a transformer from the CRT yoke - it requires replacing the main logic board >from an original Lisa, and unless you have a wrecked Lisa, that item may be a little hard to find. On the other hand, this group always seems to have someone who, not knowing a task was impossible, did it anyway! I you're out there and have "done it" - please make yourself known! Bob Stek bobstek(a)ix.netcom.com Saver of lost SOLs

27 years, 11 months

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IMSAI disks

by peacock＠simconv.com

>Two, not one, two Imsai's with Imsai disk units up for auction on ebay. Imsai disk unit as in the original 8" Calcomp floppy? Hmm, from '76? Be careful if it is, those drives had an extremely short lifespan (we experienced a 300% failure rate, every drive ordered failed, and replacements failed too). Cooling on the first Imsai floppy cabinet was completely inadequate for 8" drives, IMSAI later redesigned it. They sent us a cardboard baffle to try to get it to work but the only real solution for us was to use a different brand of 8" drive. Did anyone ever have a good experience with Calcomp floppy drives? The controller was pretty sophisticated for it's day, used a channel type design, you sent it basic info and it read the data into memory. This was pre-CP/M days, we used the floppy as a sort of fast paper tape replacement, keeping a manual directory of tracks which held code. I patched in a crude driver to the ALS-8 assembler development ROM system >from Processor Tech to read/write memory blocks onto the floppy. Jack Peacock

27 years, 11 months

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Ataris

by kaikal＠MICROSOFT.com

The 800XL (circa 1983) is a streamlined version of the Atari 800 (circa 1979). Although the 800XL has 64K RAM standard, while the 800 could only support 48K, the 800 had an expansion bus that the 800XL lacks. The 800XL is a 1.79 MHz 6502 machine with 24K ROM including BASIC. It accepts most of the same peripherals as the 800, including software (mostly game) cartridges. It has 2 joystick ports that accept 2600-style joysticks. Floppy drives are available, which run Atari DOS. See http://www.geocities.com/~compcloset/atari800XL.htm. The Atari 520ST (circa 1985) is a 16 MHz Motorola 68000-based machine that was created to compete against the Commodore Amiga (Atari almost acquired Amiga Technologies before Commodore did, and was always jealous of that fact). It indeed runs a GEM-based GUI and the TOS operating system. The STf version has an internal floppy drive, and the STfm version has a floppy drive and RF modulator. See http://www.geocities.com/~compcloset/atari520stfm.htm. Kai -----Original Message----- From: Max Eskin [mailto:maxeskin@hotmail.com] Sent: Monday, August 24, 1998 11:46 AM To: Discussion re-collecting of classic computers Subject: Ataris Today I saw an Atari 5?0ST and an 800XL. As I understand, the ST ran GEM. Is this an interesting computer at all? What about the XL? Was this one of the BASIC computers? ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 11 months

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Name this chip

by allisonp＠world.std.com

< SMS300-1 < 0002624 < 001 A 7620 on it An early bipolar processor (very strange) that was often used for signal processing or stuff like hard disk controllers. Allison

27 years, 11 months

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Ataris

by SUPRDAVE＠aol.com

In a message dated 98-08-24 14:50:19 EDT, you write: << Today I saw an Atari 5?0ST and an 800XL. As I understand, the ST ran GEM. Is this an interesting computer at all? What about the XL? Was this one of the BASIC computers? >> 800xl is just a 8bit atari machine. nothing really special about it although it did have some pretty good sound and graphics similar to the 2600. the 520st would be worth getting. supposedly ran a pretty good gui and is still used elsewhere.

27 years, 11 months

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Lisa Tools Deserialization

by Marion.Bates＠Dartmouth.EDU

--- SUPRDAVE(a)aol.com wrote: << Anyone who wants a copy by email, let me know. If you have a PC or are using UNIX (anything other than a Mac), tell me what kind of compression to use (I can create a pkzip archive, if needed). >> how about putting it somewhere like on a web page or something? --- end of quote --- I did, but you'll starve to death waiting for it to load. ;) That's if you use the Netscape/Acrobat PDF-viewer plugin. If you just want to download it (it's not compressed), that might be better. http://www.dartmouth.edu/~marionba/deserial.pdf -- MB

27 years, 11 months

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Gah! Imsai's come out of the woodwork!

by Anthony.Dellett＠Staples.com

Two, not one, two Imsai's with Imsai disk units up for auction on ebay. Our very own Bob Wood is high bidder on one. Been willin' to sacrifice alot to get one of them Imsai disk units but when one comes up on Ebay, I already spent all my budget on other crap :) Tony

27 years, 11 months

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Ataris

by workapulo＠my-dejanews.com

The 520 is a 68000 based GEM machine. From what I understand, it's an OK games machine and really really cool if you're heavy into MIDI. The 800XL is one of the nicer machines in the expansive Atari 8 bit line. Tony -- On Mon, 24 Aug 1998 11:45:31 Max Eskin wrote: > >Today I saw an Atari 5?0ST and an 800XL. As I understand, the ST ran >GEM. Is this an interesting computer at all? What about the XL? Was >this one of the BASIC computers? > >______________________________________________________ >Get Your Private, Free Email at http://www.hotmail.com > > -----== Sent via Deja News, The Discussion Network ==----- http://www.dejanews.com/ Easy access to 50,000+ discussion forums

27 years, 11 months

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Switched on Bach

by peacock＠simconv.com

>This is an old auction on eBay I happened to run across. Perhaps this item is still available: >MOOG Walter Carlos- Switched on Bach Mint Item #23979261 Was there a reserve? I have one too, from high school days but hardly in mint condition, it's been played many times. For the last 15 years I've used a copy on cassette I still play every few months, the 3rd Brandenburg was a favorite. I also have Switched On Bach II and Sonic Seasonings. And just to keep it on topic (a stretch), all these were popular with the late nite programming crowd before the days of timeshare, when you went down to the university computer lab room where the keypunches and chess boards were located. Jack Peacock

27 years, 11 months

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