test-drb March 2013

test-drb@ccmp.vtda.org

200 participants
326 discussions

by rampaginggreenhulk＠yahoo.com

------------------------------ On Thu, Feb 28, 2013 12:46 PM PST Cindy Croxton Electronics Plus wrote: >We have the video cards, too. List please :)

11 years, 2 months

Which PDP-8, PDP-11, Etc., Components Require Protection from High Humidity?

by bobvines00＠gmail.com

I've been storing my PDP-8s, PDP-11s, disk drive units, floppies, etc., in my garage at about 45% relative humidity in an attempt to prevent corrosion/deterioration. Finances are about to force me to turn off my dehumidifier out there and I can't bring the *complete* machines into the house. Which components, modules, or other related items should I be most concerned about protecting from high humidity? Which should I move into my house? Magnetic core modules? Disk packs? Floppies? Etc.? Any recommendations? Thanks, Bob

11 years, 2 months

IBM 5150

by rampaginggreenhulk＠yahoo.com

------------------------------ On Thu, Feb 28, 2013 6:56 PM PST Chuck Guzis wrote: >A friend and I marketed a replacement for the MDA card on a 5150/5160 that used a Z80 and a bunch of parts to allow the PC user to replace their display card and hook up a VT-100/220 style terminal--and switch or split-screen the PC data with other serial data (say, from a minicomputer) on the terminal. It also took the terminal keyboard codes and translated them to 5150 scan codes. It had a certain appeal, but wasn't fast enough to work effectively with a 5170 and would not do graphics. > >I still have the board (and a few abandoned prototypes). I want them. All of them.

11 years, 2 months

IBM 5150 ROMs

by rampaginggreenhulk＠yahoo.com

>> Better yet, let's test the premise in a non anachronistic real world way by transferring Winders 7 to o roughly 126,000 cassette tapes. You can start w/o me. I'll join in in about 6 months. >> >> My advice is to get the fastest 8088 you can find. >> >> > >I'd use a COCO II computer. You don't need to run the software. :) >Ben. Who said anything about running it! >

11 years, 2 months

IBM 5150

by rampaginggreenhulk＠yahoo.com

------------------------------ On Thu, Feb 28, 2013 10:18 AM PST Cindy Croxton Electronics Plus wrote: >Why can't you just write a small batch program that references the driver >and the necessary commands, and put it on the startup disk? If not enough >room on a 360K, then you can use a second floppy. We used to do this for >customers all the time, 15 years ago. Also included small start up menus, >etc. Drivers = extension rom code? Interesting proposition. I'll wager it's not very straitforward. Numerous graphics cards had drivers for say Autocad and whatnot. But that's entirely different from the startup code needed to set up initial register values and whatever on the cards chips. It seems what you're saying is the pc will startup w/o video (usually returns an error, but you can use a pc w/a terminal off the rs232 port, just don't ask me the particulars). Then initialize the video card as dos is starting. Seems possible, would be interesting to see someone do it. >-----Original Message----- >From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] >On Behalf Of madodel >Sent: Thursday, February 28, 2013 11:48 AM >To: General at proxyz14.mailnet.ptd.net; Discussion at proxyz14.mailnet.ptd.net >:On-Topic and Off-Topic Posts >Subject: Re: IBM 5150 > >On 2/28/13 9:43 AM, TeoZ wrote: >> The ROM say IBM 1981, this unit must be early, Serial # 0155185 (did >> they start from #1?). > >I was told by David Both that he used the very first PC off the assembly >line to write the PC Documentation. When I asked what happened to PC #1 >after he was done with it he said as far as he knew the same thing they did >to all their internal use machines at the time. Stripped it for parts for >warranty repairs. > >Mark > > >> So I guess I have to find an original IBM CGA card then and all is well? >> >> ----- Original Message ----- From: "Christopher Satterfield" >> <christopher1400 at gmail.com> >> To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> >> Sent: Thursday, February 28, 2013 3:53 AM >> Subject: Re: IBM 5150 >> >> >> I believe your VGA problem has to do with the older IBM ROMs, I >> believe you need the '82 BIOS to use a VGA card or any card with it's >> own BIOS, and being as I have a 16-64 KB 5150 with the newer BIOS I >> assume yours will work also, saying you have an EPROM programmer. >> >> -- >> C:\win >> Bad Command Or File Name >> C:\ >> >> > > >-- > > From the eComStation Desktop of: Mark Dodel > > Warpstock 2013 - http://www.warpstock.org > Warpstock Europe 2013 -http://www.warpstock.eu > > >For a choice in the future of personal computing, Join VOICE - >http://www.os2voice.org > > "The liberty of a democracy is not safe if the people tolerate the growth >of private power to a point where it becomes stronger than their >democratic State itself. That in it's essence, is Fascism - ownership >of government by an individual, by a group or by any controlling private >power." Franklin Delano Roosevelt, Message proposing the Monopoly >Investigation, 1938 > >----- >No virus found in this message. >Checked by AVG - www.avg.com >Version: 2013.0.2899 / Virus Database: 2641/6136 - Release Date: 02/27/13 > >----- >No virus found in this message. >Checked by AVG - www.avg.com >Version: 2013.0.2899 / Virus Database: 2641/6136 - Release Date: 02/27/13 >

11 years, 2 months

Looking for old HP PA7100LC and MOTO 88110

by michael＠almegacy.com

Dear cctalk: Please add the following post to your daily digest. Please let me know if you have any questions or if there are any issues. Very best regards, Mike *Wanted to purchase: Systems containing Motorola 88110 Processor or HP PA7100LC Processor: * ? Motorola MVME197DP or MVME197SP single board computers utilizing the original 88110 processor, or any system that utilized the Motorola 88110 processor (such as the MOTOROLA 900, 900R workstations or other company?s workstations (e.g., Data General AViiON, Harris Real Time Unix Servers)), originally sold in the United States on or before August 16, 1994. Proof of sale (receipt or the like) is highly preferred. Also interested in technical documentation on any of the above that shows a breakout of the serial number on the MVME197 (SP or DP) or on the 900 or 900R or on other systems that used the Motorola 88110 processor in order to decipher date of manufacture, country of manufacture, etc. ? HP Systems containing the PA7100LC processor, such as the 9000 E-class business servers (Models E25, E35, E45, E55), or the HP 9000 Series 700 Models 712/60 and 712/80i, or HP 9000 Models 715/64, 715/100, 725/100 or HP 9000 Model 743 or HP 9000 model 748i, or HP 3000 Series 9X8 servers such as HP 3000 Series 918 LX, HP 3000 Series 918 RX, HP 3000 Series 928 LX, HP 3000 Series 928 RX, HP 3000 Series 968 LX, HP 3000 Series 968 RX, HP 3000 Series 978 LX, HP 3000 Series 978 RX, originally sold in the United States on or before August 16, 1994. Proof of sale (receipt or the like) is highly preferred. Also interested in technical documentation on any of the above that shows a breakout of the serial number in order to decipher date of manufacture, country of manufacture, etc.

11 years, 2 months

IBM 5150

by rampaginggreenhulk＠yahoo.com

------------------------------ On Thu, Feb 28, 2013 4:21 PM PST David Riley wrote: >On Feb 28, 2013, at 3:45 PM, Chris Tofu wrote: > >> >> >> But the burning question is could you fiddle with the extension rom code and use it as a loadable device driver? After all you could transfer rom BASIC to a disk file and run it that way. > >Probably not; extension ROMs usually provide services to the BIOS (or >hook interrupts used by the BIOS and run in place of the BIOS >routines) while DOS drivers tend to provide services directly to DOS. >It's akin to the difference between a driver and an application (but >obviously not exactly the same). I would have guessed extension roms contain raw independent code. Largely just writing values to port addtesses >Whether you could run a script from autoexec.bat or config.sys to >execute expansion ROM code after DOS boot is another question, but >I have no idea how well that would work after the BIOS has already >handed over control to the OS (I suspect not so well, but I don't >know for sure). You can certainly try jumping to the code location >in DEBUG or the like. Which lead me to ask what a video device driver is/does. Presumably when you type Mode co,80 iirc, or screen 1 in basic, you're assigning different values to ports ie fiddling with say the 6845's registers, thereby creating another screen on the fly. Unless I'm wrong. But if not, isn't that kind of what a dd does? There's bound to be more then that going on. But code is code, regardless of what stage of the game you're in, start up, boot up, os fully installed. The os only has as much control as you allow it. You communicate with dos, but s/w at least can manipulate the h/w. Which is why s/w has too much power under dos. When dos transfers control to a bunch of code, it's boss. > >- Dave > >

11 years, 2 months

Next warehouse day March 2

by sales＠elecplus.com

The next Kerrville warehouse day is March 2, starting 9AM. Those who have come have gleaned many treasures J Please let me know if you plan to come, and what areas you are interested in, so I can start digging things out for you. Bring a truck, bring a U-Haul, I need to clear some things out! Old Sperry server, RA82 hard drive, lots of terminals and keyboards, old memory, what are people looking for? Old mono and color 9-pin monitors, early 15-pin monitors, daisy wheel and dot matrix printers, etc. Most of this old equipment does not take to UPS shipping very well. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2899 / Virus Database: 2639/6114 - Release Date: 02/18/13

11 years, 2 months

IBM 5150

by rampaginggreenhulk＠yahoo.com

But the burning question is could you fiddle with the extension rom code and use it as a loadable device driver? After all you could transfer rom BASIC to a disk file and run it that way. ------------------------------ On Thu, Feb 28, 2013 12:06 PM PST Fred Cisin wrote: >On Thu, 28 Feb 2013, Cindy Croxton Electronics Plus wrote: >> Why can't you just write a small batch program that references the driver >> and the necessary commands, and put it on the startup disk? If not enough >> room on a 360K, then you can use a second floppy. We used to do this for >> customers all the time, 15 years ago. Also included small start up menus, >> etc. > >The "driver" is a ROM. You'd have to start by writing a LOADABLE driver. >It would be convenient to have another machine on hand while writing it, >since the "driver" is to get the video to work. > >It would be MUCH MUCH easier to install a CGA or MDA card, and contact >Cindy Croxton in Texas and buy one of her "9-pin monitors". > >

11 years, 2 months

Raspberry Pi

by rampaginggreenhulk＠yahoo.com

------------------------------ On Thu, Feb 28, 2013 6:18 PM PST Richard wrote: > >In article <512FE45E.5000602 at jwsss.com>, > Jim Stephens <jws at jwsss.com> writes: > >> The lack of exploits does not mean there will be none. There are still >> vulnerabilities which could work on a linux machine as well as any of >> the PC or Macos ones as well as any. > >How quickly people forget that the first major internet >(unintentional) DDOS attack was all against unix machines. W/o looking at your citation, I'll guess it was at a time when there was little else on the internet (arpanet?). ><http://en.wikipedia.org/wiki/Morris_worm> >-- >"The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> > The Computer Graphics Museum <http://computergraphicsmuseum.org> > The Terminals Wiki <http://terminals.classiccmp.org> > Legalize Adulthood! (my blog) <http://legalizeadulthood.wordpress.com>

11 years, 2 months

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test-drb March 2013