test-drb

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101090 discussions

by charlesmorris800＠centurytel.net

No, not that kind of POS, but "Point Of Sale"! http://i1181.photobucket.com/albums/x426/DrCharlesMorris/P2150003.jpg http://i1181.photobucket.com/albums/x426/DrCharlesMorris/P2150005.jpg http://i1181.photobucket.com/albums/x426/DrCharlesMorris/P2150004.jpg It has an 8080A processor, a vacuum fluorescent display, keypad, 20 LED's, and line-operated (120 ac) power supply. I bought it from Jameco many, many (25+) years ago and am tired of tripping over it. I hate to strip it just for the 8080A and EPROMs since it looks like a good foundation for... something. Would someone like it for the bargain price of $7.00 plus the actual shipping from US zip 65775? thanks Charles

15 years, 5 months

Cleaning out: VIC-20, TI-99/4a & misc. parts

by wedge1020＠gmail.com

Good day, I've been scanning the message archives off-and-on and finally took the plunge and subscribed. Please let me know if my posting is out of place. I have been a computing enthusiast for several years, starting with the 8-bit game console genre and migrating through some of the 90s RISC "big iron", and finally arriving at a point where I realize I have a storage locker filled with stuff that hasn't been used in quite some time. Not wanting to be selfish and keep it all to myself, I'm attempting to finally clean out my inventory and disperse to good homes. Perhaps a similar story and I'm late to this parade, but it's worth a shot. My intent is to chip away at it slowly (the pile is large, and there's no way I can haul it out to my living room to do a complete inventory). Preference is: Make an offer. I'd prefer to have some shipping costs covered at the very least. I'm in upstate NY (14830), and have easy access to either the USPS or UPS for shipping. The first batch includes: - 1x Commodore VIC-20 unit (no cables or adapters in this box). Should work, cosmetically decent (slight yellowing, with what looks like a small warped area in the plastic from some former owner setting a cigarette on it) - 1x Commodore C2N CASSETTE drive (attached cable). Should also work, I used to use it to load various BASIC games (in another box). - 1x TI-99/4a computer (silver with black trim). Includes a TI Extended BASIC command module cartridge. No other cables or adapters. - 1x The User's Guide to Texas Instruments: TI-99/4A Computer, Software, and Peripherals spiral bound manual. - 1x slightly beat up (but empty) box to the Atari 400/800 Computing Language Assembler Editor. Includes unmarked Atari registration mailer and warranty card (both good condition). -Matthew

15 years, 5 months

Happy New Decade

by nospam212-cctalk＠yahoo.com

Off by one errors are so much fun to debug... Celebrate whatever you want, whenever you want. Just keep in mind that in the US, the official timekeepers, NIST have said that the third millennium, 21st century and the first decade of the 21st century all official started with 2001. Of course we could just hold all our new year celebrations until Feb 3rd for Chinese New Year... Or better yet, just celebrate all over again. After all it is just an excuse to party mostly anyway right? ;)

15 years, 5 months

MakeDataExecutable and PowerPC

by spectre＠floodgap.com

I know we have some old(er) Apple developers out there, so I wanted to ask: does MakeDataExecutable have a particular penalty? I'm working on a PowerPC nanojit for Firefox so that Firefox's JavaScript tracer can emit PPC instructions. It works, but it takes a huge initial penalty, more than I would have expected. The pure-C++ JavaScript interpreter beats it on many tasks. I'm sure that part of that is trying to beat gcc's very good PPC optimizer, but I want to eliminate other variables. It also seemed that PPC mulli is still slow compared to unrolled naked adds and bitshifts, and naturally the Firefox bytecodes do not have support for fused multiply-add or other things that POWER does well. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- "In God We Trust (All Others We Monitor)" ----------------------------------

15 years, 5 months

DOS FTP server testing needed

by mbbrutman-cctalk＠brutman.com

Greetings ... I am still working on my TCP/IP for DOS. It has been over five years now. :-) For the past few days I've been testing an FTP server. The server is running on a PCjr with DOS 3.3, a SCSI Zip 100 for mass storage, and a Western Digital WD8003 Ethernet card. (The Zip is attached using a parallel-to-SCSI adapter and the WD8003 is on an ISA bus adapter.) The FTP server supports most of the standard commands. If you use anonymous FTP you will be limited to a 'sandbox' on the Zip drive that is 30MB in size. You can leave files in the '/incoming' directory - everything else is read only Six people can be connected at a time, but the machine can only transfer data at about 25KB/second so if multiple people start data transfers it will get painful really fast. That's just a limitation of the machine - a faster machine would do a much better job. (A TCP/IP socket with this machine can transfer at data rates up to 100KB/sec. The Zip drive can so sequential reads at around 50KB/sec. So I figure that 25KB/sec isn't that unreasonable.) If you'd like to try out some of your favorite FTP clients I'd appreciate the extra testing. You can get to it at 96.42.228.74 on port 2021. Browser users can use ftp://96.42.228.74:2021/ for a URL. If you are curious as to how the machine is performing or who is on the machine try the 'SITE STATS' or 'SITE WHO' commands. Chuck(G) has already broken it once by using DOS reserved names that I forgot to filter. That bug, and an obscure timing window related to passive data connections have been fixed. If I can keep it running for another day or two with reasonable traffic I'll consider it a success. Thanks! Mike

15 years, 5 months

TRS-80 Model II/12/16

by fjkraan＠xs4all.nl

>> Yeah... I've been steadily working towards getting a working TRS-80 >> Xenix machine. At the moment, I have enough parts (I believe) to make a >> working Model II, and a line on the 68000 board. Unfortunately, the >> difficult part to find is a hard disk. I have the Model II host adapter >> for the early TRS-80 Eight Meg drive (which is, of course, completely >> incompatible with anything else), but no drive. I can't even cobble it >> to a regular MFM drive, since the actual disk controller is in the drive >> cabinet (I have only the host adapter). Unfortunately, you can't really >> run Xenix without a hard drive. > I wonder... > > The Model 1/3/4 hard disk system consisted of a WD1001 controller board, > a disk drive and a very simple host adapter (just an address decoder > really). I would not be suprised if the M2 one was similar in concept. > > Radio Shack were also very good about supplying technical/service manuals > (one reason I liked their machines, yes even back then I knew the value > of a schematic!), so I suspect some information on the M2 hard disk > system exists. > > I wonder how hard itwould be to make up a devie to plug into the host > adapter, appear to have the smae M2-accessible registers, but using some > mode modern storage device. Probsbly a lot easier than replacing an ST412 > hard disk, for example. I have the 8 meg disk system: http://www.xs4all.nl/~fjkraan/comp/trs80m2/8megDisk.html, but still haven't found time and space to properly test it. Replaced some blown capacitors, but that is all sofar. The authorative source for most things TRS-80 is Frank Durda's site: http://nemesis.lonestar.org/computers/tandy/hardware/storage/mfm.html. The original 8 Meg controller emulated the WD1000 chipset even before it was on the market. So it should look like something familiar :-). Fred Jan

15 years, 5 months

HP Portable+ disks

by ard＠p850ug1.demon.co.uk

Although the HP Portable+ Technical Reference doesn't contain anything on the physical disk formats, there's a table in the usner manual for the FORMAT comamnd (I've changed the headings a bit, but the data is the same) : Specifier #sides Secotr size Capacity Files in root dir /w 1 256 264192 128 /x 2 256 618496 304 /y 2 512 700416 176 /z 2 1024 780288 96 none 2 512 700416 176 The default seems to be the same as other HP MS-DOS double-sided disks. I wonder if Chuck (I think) got a disk formatted wit hthe /z option from a Portable+ and sassumed it was the defualt? -tony

15 years, 5 months

Apple/Corvus Whatsit

by dm561＠torfree.net

--------------Original Message: Date: Thu, 30 Dec 2010 22:12:34 -0600 From: Jason T <silent700 at gmail.com> Subject: Re: Apple/Corvus Whatsit On Thu, Dec 30, 2010 at 9:03 PM, Al Kossow <aek at bitsavers.org> wrote: > > shielded twisted pair Ahh, so. Here is a pic of the back of a Corvus Omnidrive. This is the same DIP/pins combo my little box has: http://www.1000bit.it/lista/c/corvus/omninet/Corvus06.JPG -- jht --------------Reply: Anybody want the controller board out of an Omnidrive? The case & PS are in use for one of my Cromemco external hard disk drives, but I do also still have the controller card; PS connector, LEDs and the DIP sw were removed, but otherwise it looks complete. mike

15 years, 5 months

Looking for a 26 PIN Female to a 25 PIN DB25 Ribbon Cable

by trebor77＠execpc.com

Message: 3 > Date: Thu, 30 Dec 2010 11:16:32 -0800 > From: "Chuck Guzis" <cclist at sydex.com> > Subject: Re: Looking for a 26 PIN Female to a 25 PIN DB25 Ribbon Cable >> I am Looking for a 26 PIN Female to a 25 PIN DB25 Ribbon Cable. I am >> going to try to test a HSIO 4 Port Serial Card Meant for a N* Horizon. >> I checked Jameco but they don't have any of the 26 Pin Female Ribbon >> Connectors thats fits over the Dual Row of PINs on the HSIO card TIA >> Bob in Wisconsin >> Jameco P/N 525413 >> (see catalog page >> http://www.jameco.com/Jameco/catalogs/c103/P79.pdf ) >> Is this what you need? >> --Chuck >> Sure looks like it will do the Trick Thanks to Chuck Bob

15 years, 5 months

S: SNA.PS/Mac (Classic) and/or AppleTalk PTF for OS/400

by poc＠pocnet.net

Hello, I recently saved an old AS/400 box from being dumped to learn a bit of the system and OS. Since I'm also a long standing Mac user, I'd like to experiment with sna.ps on old boxes of mine. I have a IIfx with a Apple Token Ring 4.16 board and also the AS/400 has Token Ring up and running. The ring itself works ok for TCP/IP and IPX with some devices attached. I'm searching for the original Apple sna.ps software in any version for getting the two worlds together. Anyone has it? Unfortunately, the code has been sold multiple times to different companies. Copyright is now held by MochaSoft. There has been no response to my inquiry there. So I think thy just don't care for old stuff. I'm also searching for the AppleTalk PTF for OS/400 V4R4M0 to enable the AS/400 speaking AppleTalk natively. Anyone can provide a SAVF of that? IBM doesn't support V4 in no way anymore. Thanks for any hints or help! :wq! PoC

15 years, 5 months

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