test-drb

test-drb@ccmp.vtda.org

101090 discussions

by cclist＠sydex.com

Did anyone catch this Clive "Max" Maxfield article on IBM DeveloperNet some months back? http://www-128.ibm.com/developerworks/power/library/pa-hrrg1 I like his idea of implementing a computer using RS-485 linkup among the functional units. Is anyone tempted to get their soldering iron warmed up? Cheers, Chuck

19 years, 4 months

Wanted: Fairchild uA79MG voltage regulator

by pyramid＠interlog.com

did you find them/ i might have them

19 years, 4 months

OS X and Unix

by aek＠bitsavers.org

> the Mach stuff from BSD The Mach kernel is from CMU The BSD layer on top of the original Mach on VAXen and Sun boxes had USL encumbrances. The BSD used in OS X is based on FreeBSD, which does not. This should all be described on the Darwin site.

19 years, 4 months

OS X and Unix

by aek＠bitsavers.org

> Okay... I just checked, and Apple did NOT go to the nicety of > licensing OS X as a version of UNIX. Apple has had a Unix source license for a VERY VERY long time.

19 years, 4 months

TRS-80 Model 1

by compoobah＠valleyimplants.com

> >>> I write this on a Linux machine, and I love the operating system. >>> Linux is a work-alike of UNIX, developed by Bell Labs (K&R). The >>> Apple >>> OS-X is a licensed variant of UNIX. Linux is NOT an offshoot of >>> Apple. >> >> OK, I know this is way OT, but I'd like to see that documented. As >> far as I know OS X is NOT a licensed UNIX. As a matter of fact, by >> any >> definition I'd use, it's not unix period. It just has a really pretty >> [and incredibly useful] POSIX API. > > AFAIK, it's Mach with a POSIX layer and a FreeBSD userland, and of > course > Apple's custom stuff bolted on. > > Depends on what you mean- I think I recall the Open Group finally got Apple to certify it under threat, but Sys10 has never had a AT&T license AFAIK. OTOH OSF/1|Tru64|DIGITAL UNIX has a very similar structure, and no one argues the UNIXness of that beast (except for those who also argue against AIX).

19 years, 4 months

govliq: Lockheed Martin disk packs NIB

by aek＠bitsavers.org

> I don't recognize these IBM 2314 you can see the ibm logo in the back of the 1st pic http://www.staff.ncl.ac.uk/roger.broughton/DASD/200426.htm

19 years, 4 months

govliq: pertec disc platter, VT420, VR201, VT320(3) + more

by legalize＠xmission.com

<http://cgi.govliquidation.com/auction/view?auctionId=1098070&convertTo=USD> -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 4 months

govliq: RL02 drive

by legalize＠xmission.com

<http://cgi.govliquidation.com/auction/view?auctionId=1121454&convertTo=USD> -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 4 months

OS/2 stillborn, was Re: TRS-80 Model 1, etc

by aek＠bitsavers.org

> Where can one find a copy of the last OS/2 release? eBay, though it is still going for real money there. OS/2 software is one of the things that I have been acquiring for CHM as an example of a non-Windows software technology from the 90's.

19 years, 4 months

Fujitsu Eagles

by aek＠bitsavers.org

> Hmmm. I supported the Eagles for the 8 years I was at Fujitsu. Don't > remember anything about issues mixing with CDC on the same cables. Come to > that, I was at MPI before Fujitsu and don't remember any problems with > mixing there either. Of course, the Eagle simply ran forever. I visited a > couple that hadn't been powered down in 5 years - just running along quietly > in the background. MANY years ago, I wanted to get rid of a Sun 3 server with two Eagles. Someone >from Berkeley came down and loaded the 7' rack into the back of his JEEP. It stuck out from the back so far that the rack fell out about a block from my house (I heard the crash when it hit the road). We helped him put it back in and gave him some rope to tie it in place. Years later, I ran into him, and other than the rack rails having bent back a few inches from the impact, it ran fine.. Heads were locked, of course..

19 years, 4 months

TRS-80 Model 1 (was: Arty computers (was: Re: PDP-11/70 inYates Center, KS)

by aliensrcooluk＠yahoo.co.uk

--- Chuck Guzis <cclist at sydex.com> wrote: > On 2 Feb 2007 at 23:54, arcarlini at iee.org wrote: > > > > A few days ago I read a claim that floppies are > used infrequently > > these days (compared to how often they used to b e > used) so the > > dust and grime that gets sucked through a drive > has longer to > > accumulate before being deposited onto the > occasional floppy > > that does make it in there (for a BIOS upgrade o r > whatever). > > Horsepucky. > > (I know--I should quit mincing my words and say wh at > I *really* > think :) ) > > My drives get used a lot--and are scrupulously > maintained. Modern > 3.5" DSHD media is garbage. I have far better luc k > with DS2D 3.5". > > Cheers, > Chuck > Most of the 3.5" drives at work are hardly used. We only use about 4 computers to transfer data to/from the analytical machines. Another one transfers data directly to a PC via the network. That leaves about 7 computers that we rarely (maybe once every 3 months) use the 3.5" floppy drive on. Regards, Andrew D. Burton aliensrcooluk at yahoo.co.uk

19 years, 4 months

nice pdp-11 photos

by bqt＠softjar.se

"Bill Pechter" <pechter at gmail.com> skrev: > Actually, my favorite three DEC boxes are the 11/70, the 8650 Vax and the > Minc. > > Wierd mix... but they're pretty much representative of a lot of the stuff > from Real Time through timesharing. Interesting that you should mention just those machines, Bill, as I feel the same way, except that I haven't touched a Minc yet. But as it happens, we have two 11/70 machines and two VAX 8650 machines fully functional here. :) It don't get much better than that. Johnny

19 years, 4 months

Teac Tape Drive

by RLW953＠aol.com

Patrick... You don't by any chance still have any Teac CT-600N data tapes do you...If not do you know where a fella might find some... Thanks Bob

19 years, 4 months

nice pdp-11 photos

by Billy.Pettit＠wdc.com

Guy Sotomayor write: Not too bad. I was lucky and all of mine worked. Just print out the manual and make sure everything's configured correctly. I have the 8-drive versions. I put the CDC drives on a separate controller because apparently there's "issues" with mixing Eagles and CDC drives on the same chain. TTFN - Guy ----------------------- Hmmm. I supported the Eagles for the 8 years I was at Fujitsu. Don't remember anything about issues mixing with CDC on the same cables. Come to that, I was at MPI before Fujitsu and don't remember any problems with mixing there either. Of course, the Eagle simply ran forever. I visited a couple that hadn't been powered down in 5 years - just running along quietly in the background. So, I'm not surprised to see some Eagles still running. To me, it was the best disk drive ever made. Certainly the most reliable. I got to be good friends with the designer, Yuji Inoue. He was an incredible engineer. Sadly, he died about 3 years ago. And I add my kudos for your beautiful restoration. It is great to see such a labor of love. Billy

19 years, 4 months

PDP-11 GUI console, was Re: Foonly

by pechter＠gmail.com

But I'll have to either steal a PowerPC based Mac -- or get it up under PearPC... :-) Bill On 2/2/07, John A. Dundas III <dundas at caltech.edu> wrote: > > At 3:17 PM -0500 2/2/07, Bill Pechter wrote: > >I'd love to see the Dec DataSystem 570 graphic... > > Easy: just run the program, use the Preferences menu item, select > Console, click on DataSystem 570, whoosh, the console window will > change. > > BTW, someone with a real 570, or an Industrial-11, can make sure I > got those right. I have only (!) a "regular" one to measure against. > > John >

19 years, 4 months

Anyone know what this stands for?

by evan＠snarc.net

I'm trying to learn what "NTC" means in the context of PERT, CPM (the biz process, not the OS!), etc. .... Can anyone help?

19 years, 4 months

nice pdp-11 photos

by legalize＠xmission.com

Big, close-up photos of boards. <http://sebastien.kirche.free.fr/ordinos/dec/pdp11/> -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 4 months

cctalk Digest, Vol 42, Issue 6

by Billy.Pettit＠wdc.com

Patrick Finnegan wrote: At least with pulls, you know they've probably been tested recently :/ Pat -- ----------------------- Tested, working and burned in (no infant mortality). My luck with pulls is far better than with new components. However to be fair, I have never had a bad microprccessor of any ilk. Billy

19 years, 4 months

OS/2 stillborn, was Re: TRS-80 Model 1, etc

by Gary＠realtimecomp.com

> On Behalf Of Chuck Guzis > Where can one find a copy of the last OS/2 release? I'd like a copy > for my archives. > > Cheers, > Chuck Try here. http://www.ecomstation.com It's actually still being worked on by a third party. Gary

19 years, 4 months

cctalk Digest, Vol 42, Issue 6

by alhartman＠yahoo.com

Gordon wrote: > Al Hartman wrote: > >> We only have a limited amount of chips. Once these are gone, I can't get any more. > > You could look inside old BT payphones. > > Gordon. Except, this is NEW, OLD STOCK. NOT pulls... HUGE difference. Al

19 years, 4 months

the history of the personal computer in TV commercials

by legalize＠xmission.com

<http://www.downloadsquad.com/2007/01/30/the-history-of-the-personal-compute…> -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 4 months

Arty computers

by us21090＠yahoo.com

I like the looks of the Olivetti Underwood Programma 101. It even had two blinky lights: green (solid=ready, blinking=busy) and red (error) http://www.silab.it/frox/p101/boxbig.gif If I recall correctly it was the first computer(*) I programmed. Back in '72-73, while in Jr. High (btw, not "Middle School"). Several interesting things about the P101: Introduced in 1965 (same year as PDP-8). No ICs; all discrete components. The boards were placed component side to component side, designed with one board's components fitting in the spaces between the components of the other board. Programs were stored on magnetic cards, which Olivetti received patents for (HP had to pay about $900K in royalties for the technology use in the HP9100) Its approximate 240 bytes of memory used acoustic delay line technology. Scott Austin (*) Computer? Programmable Calculator? I'll let someone else debate about this. ____________________________________________________________________________________ Looking for earth-friendly autos? Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center. http://autos.yahoo.com/green_center/

19 years, 4 months

Tandy 2000 and stuph 4 sale in Colorado

by chrism3667＠yahoo.com

"Model 2000 keyboard Intro to Model 2000 manual (874-9486) Tandy 2000 Tech Reference Manual (26-5404) Tandy TRS-80 Digi Mouse/Clock Controller Board (26-5144) Tandy Monitor MonoChrome (26-5111) Model VM-1, Date Manuf. 3/1984, SN: RS022001 Tandy Intelligent Modem, DCM-7 (26-1394) Tandy TRS-80 Personal Computer, Model 2000 (26-5103) MS DOS Basic floppy disk (1), for the Model 2000 (26-5103) This is the Tandy disk, not a copy. The items listed above are all in their original boxes." I've been asked to take offers and submit them to the seller. Therefore e-mail me directly. Colorado Springs, Colorado. ____________________________________________________________________________________ Looking for earth-friendly autos? Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center. http://autos.yahoo.com/green_center/

19 years, 4 months

Canadian Peecee on eBay - very artsy ;)

by chrism3667＠yahoo.com

http://cgi.ebay.com/8088-Best-Performer-88-10-1980s-PC-with-Keyboard_W0QQit… Z330083298764QQihZ014QQcategoryZ4193QQrdZ1QQcmdZViewItem ____________________________________________________________________________________ Never miss an email again! Yahoo! Toolbar alerts you the instant new Mail arrives. http://tools.search.yahoo.com/toolbar/features/mail/

19 years, 4 months

Arty computers

by dm561＠torfree.net

------------Original Message: Date: Thu, 1 Feb 2007 22:11:24 -0500 From: "Ethan Dicks" <ethan.dicks at gmail.com> <snip> Long ago, I did hang a pair of Radio Shack 7-segment LEDs off of a PET User Port with some trivial logic to use the 8th bit to select digit A vs digit B, then the lower 7 bits of the port went right to the segments. A small machine-language routine tapped into the 60Hz clock interrupt refreshed the digits. For a modern machine, I'd recommend some sort of external latch and multiplexer at least, or perhaps a dedicated LED driver like the ICL7218 (MAX7218?) (here's one I made a while back with 16 digits from one parallel port and two driver chips) http://www.penguincentral.com/retrocomputing/retrogaming/scoreboard.html -ethan ------------Comment: For driving 7seg displays or LEDs, I'd recommend an MC14489; it'll directly drive 5 mux'ed 7 segment displays (hex or pseudo-alpha), straight binary, or 25 LEDs from a 3 wire DC to 3MHz serial interface. Saves a lot of wiring, especially if you use multi-digit displays; just the thing for a blinkenlights panel... mike

19 years, 4 months

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test-drb