test-drb July 2008

test-drb@ccmp.vtda.org

182 participants
225 discussions

by hoelscher-kirchbrak＠freenet.de

RDB V2.3 (or any other Version 2.x or 3.x) manuals wanted to borrow, buy oder trade for hobbyist use. Genuine manuals, copies or files (pdf/tiff/...), anything is welcome! Regards Ulli

15 years, 9 months

Apple 1 Obtronix

by us21090＠yahoo.com

The next step in my evil plan... For various reasons I'm selling my Apple 1 Reproduction from Obtronix. Ebay auction: 290247234821 , ie, http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&&item=290247234821 Scott

15 years, 9 months

Looking for final rev IBM PC/AT roms.

by jzg22＠drexel.edu

cctech-request at classiccmp.org wrote: > Go to: > > http://members.dodo.com.au/~slappanel555/bios.htm > > mike The PC 5150 revision 2 (10/19/81) dump on that site is bad (first few bytes are correct but the rest is garbage?). I have a good copy here (thanks, Jim Leonard and billdeg from http://www.vintagecomputer.net/ ) though I don't have the proper chip numbers from it. Speaking of AT 5170, if the rtc clock crystal from an AT is missing/cut off, will it boot at all, or will the RTC chip hold the PIT (and CPU) in reset forever? -- Jonathan Gevaryahu jgevaryahu(@t)hotmail(d0t)com jzg22(@t)drexel(d0t)edu

15 years, 9 months

Scientists decry Bletchley Park's decline | The Register

by gstreet＠indy.net

I went to the Bletchly Park website and tried to make a small donation (even though I realize the USD only half the value of the Pound). After attempting to create an account, they were supposed to email me a password so I could properly login. I'm not sure why they've not yet send a password, since it did not seem to indicate that folks outside of Britian could not contribute. I can only hope that so many are trying to donate that it's overloaded their servers -- but I'm sure that's a pipe dream... It would at least be nice for the Yanks to show their support. Regards, Robert Greenstreet

15 years, 9 months

IBM System 360 Mod 70 info

by aek＠bitsavers.org

> I came across this press release in the computerhistory.org archive. > any assistance in determining the Who, Where, and When of this photo will be appreciated. http://archive.computerhistory.org/resources/still-image/IBM/IBM_360/IBM.36… Fred Brooks press photo from the 360 product intro.

15 years, 9 months

Looking for final rev IBM PC/AT roms

by dm561＠torfree.net

---------Original Message: Date: Thu, 24 Jul 2008 15:25:21 -0500 (CDT) From: Julian Wolfe <fireflyst at earthlink.net> Subject: Looking for final rev IBM PC/AT roms. Hi, I have a PC/AT that I believe the ROM BIOS has gone bad in. Does anyone here have the final rev (November 1985?) BIOS ROM image around that I can use to check my ROM against and/or burn another copy if need be? I use this machine on a constant basis so to have it running again would be a real boon. Thanks Julian ************* Go to: http://members.dodo.com.au/~slappanel555/bios.htm mike

15 years, 9 months

Anybody know details on this diode matrix patch panel?

by broswell＠syssrc.com

Hello all, I have an old memory patch panel, probably a diode matrix. Estimated to be from the early 60's, maybe IBM? Pictures are at http://i36.tinypic.com/29paqfb.jpg http://i37.tinypic.com/2h6tzd5.jpg http://i34.tinypic.com/51wl6h.jpg I have 3 kinds of diode plugs that fit in the sockets It has white plugs with one type of diode in it. It has brown plugs with a different type of diode in it It has grey plugs that will be a short. So it appears that each location can have one of four values open, short, diode1 or diode2. I am interested to find out more about this - any information such as documentation, model, or what it belonged to would be helpful. Thanks! Bob Roswell broswell at syssrc.com Bob Roswell System Source broswell at syssrc.com (410) 771-5544 ext 4336

15 years, 9 months

Old data books online

by aek＠bitsavers.org

leeched from bitsavers

15 years, 9 months

Any ideas on how to clear a BIOS password on a Thinkpad 701C?

by madodel＠ptdprolog.net

I'm trying to get a TP 701c I bought off of eBay working to install OS/2 Warp on. But it has a password set in the BIOS. According to the service manual ftp://ftp.software.ibm.com/pc/pccbbs/mobiles/tpvol2.pdf there are two Power-On Password Bypass Pads on the bottom of the lower system board, but no instructions on what to do with them. Do I need to short them out? If so how? Someone else suggested desoldering the backup battery, but if I can just short two pads, that would be preferred. Right now its completely disassembled. I have two other 701c machines, but they each have their own problems. Worse case if I can't clear the password I can try to take the display off this one and put it on the 701c that has a display problem. Mark

15 years, 9 months

Looking for final rev IBM PC/AT roms

by dm561＠torfree.net

ISP trouble; sorry if this is duplicated. mike ---------Original Message: Date: Thu, 24 Jul 2008 15:25:21 -0500 (CDT) From: Julian Wolfe <fireflyst at earthlink.net> Subject: Looking for final rev IBM PC/AT roms. Hi, I have a PC/AT that I believe the ROM BIOS has gone bad in. Does anyone here have the final rev (November 1985?) BIOS ROM image around that I can use to check my ROM against and/or burn another copy if need be? I use this machine on a constant basis so to have it running again would be a real boon. Thanks Julian ************* Go to: http://members.dodo.com.au/~slappanel555/bios.htm mike

15 years, 9 months

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test-drb July 2008