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SWTPc to Altair 680 program transfer |
MFM hard drive formats only 10/20 MB...wby billdeg Total messages in this thread: 1 USing an IBM XT 640K with an IBM 1816101 hard drive controller and a Rodime RO204 hard drive. I "low level" formatted the drive using the IBM XT reference disk and fdisk'd with DOS 3.3. I then ran the format command /s. There were no errors, the correct number of cylinders were counted off (320cyl, 8heads) appeared. For some reason it formatted to ~10MB not ~20MB. Do you know why that happens? More on the Rodime RO204: http://www.4driv...VESPECS/RODIME/3704.txt">... [ read more ] |
Grumman C-8573 / ASA-79 Jet Computerby billdeg Total messages in this thread: 1 I was given a Grumman C-8573 / ASA-79 Jet Computer a few months ago, and I decided to open it up to see what was inside. I was told...that this was the computer from an F14, but I was unsure exactly which generation. After a good hour I finally opened up the box to reveal mid-80's components, not late 60's early 70's. See http://microcomputerhistory.com/f14chipset.htm for what I was hoping to find. oh well. Here are the raw images: http://vintagecomputer.net/Grumman/ Note that it's an IBM card cage. The chips are from the early to mid 80's. The historical equivalent to an early pentium/late 486 ... I will come back to this. If anyone wants this unit, let me know. It's not really in my area of interest.">... [ read more ] |
Messing with External Disk Drivesby billdeg Total messages in this thread: 1 Me? I am working on some old disk drives, basically taking each one and testing on a RadioShack Coco II with a 502 FD cart/adapter. I have about 10 external (self powered) DD 5 1/4" disk drives that I nurse along. They are used for TRS 80 Model 1's with the expansion interface and a DD controller, plus anything newer from RadioShack. It's good to pull them out and test every year to keep them limber. The reason I was using the Coco II and 502 FD cart is to take advantage of the enhanced basic command set disk commands. The most prized drives of this group is a set of ancient Percom drives (drive 0 and 1). I am glad to report that I was able to revive the previously dead Percom drive 0 tonight. Ah simple pleasures. Here are some commands that I used, if anyone is interested: dskini0 (format a disk in drive 0) copy "test.bas:0" to "test.bas:1" (copy a file from drive 0 t">... [ read more ] |
Cottonwood BBSby billdeg Total messages in this thread: 1 http://hometown.aol.com/cottonwoodbbs/ +1 (951)242-3593 Located in Moreno Valley, California, USA. Operating 24 hours a day, at 300/1200/2400 baud. Running on a Commodore 64 with All American BBS The only remaining dial-up BBS run on a Commodore 64 in the world! Using the following I was able to connect to Cottonwood: C 128 w/ Jiffy DOS C 1541/1571/1581's Terminal suite: "EAGLETERM" (in C 64 Mode) Commodore 1670 1200b modem I am user #6, "billdeg" ">... [ read more ] |
Who is maintaining a boot disk archive?by billdeg Total messages in this thread: 1 This topic came up in my local vintage computer club (see: http://www.marchclub.org/ ) and I thought that I would expand the conversation to this forum too... Who is maintaining a boot disk archive currently? I have read about the lack of these resources in various circles, although there are some limited sources spread around. Here is my definition of a boot disk archive: 1) A person goes to a central location to review a comprehensive list of all boot disks available in the archive 2) The person scans the list and then contacts the library/archivist to request a copy of the diskette(s) 3) The archivist acts as a go-between for the requestor, and contacts the person(s) who have agreed to burn a copy of the requested boot disk 4) In one form or another the requestor gets confirmation and an address to send a SASE containing a blank diskette of the required media. 5">... [ read more ] |
Dbase II on Commodore BX700by billdeg Total messages in this thread: 1 I have a prototype Commodore BX700 with a 8088 co-processor card. This gives me the ability to run CP/M and early MS DOS 1.25-compatible applications. They are ported over to the B using Move It, a communications program. You also need a Fast Bus cartridge. I will write more about this soon, but for now, here is a pic of Dbase II for CP/M 86. http://www.vintag.../bx700/B700_dbaseII.JPG">... [ read more ] |
California Technology Internationalby billdeg Total messages in this thread: 7 Updated: [ MR 2000 Found ] 07/11/2020  The California Technology International 1008-A. Click image for larger view.
A California Technology International 1108-A with built-in Micro Communications Corp. stringy floppy drive arrived today. I don't know how to use it, and it appears semi-functional. It powers on and eventually a "1" blinks weakly on the left LED. I was not able to load a program from tape. When I press the key labeled "FROM TAPE" the built-in stringy floppy motor activates and a "2" appears on the display in one of the left center LED's. It does not appear to load (or rewind) the tape, and I am unsure how to rewind a tape, etc.
When I press a keyboard key (it's a membrane keyboard with qwerty keys plus a lot of specialized keys) the system beeps in response.
I ope">... [ read more ]
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Commodore B Series Availableby Drtire Total messages in this thread: 1 I have 2 sets of B-128's with external dual drives, numerous programs from C-bug as well as Supercalc, Superbase, etc., manuals for all, many programs for the units. These units are the keyboard/cpu set up with external monitor and drives. I believe I have at least one of the monitors however I haven’t been able too locate it. These were used for a number of years in my business and was stored away when I upgraded to PCs. I would like to sell them but have no Idea what to charge for them. They were operating perfectly when I took them out of service approximately 10-15 years ago. Please contact me if anyone has any interest in these items as I would like to find them a good home before I toss them in the recylce bin at the Landfill. I cut my teeth with these computers and they deserve to be saved. They were something else for their time. Don Correia, Drtir">... [ read more ] |
Northstar Horizon S-100 Computerby billdeg Total messages in this thread: 3 Updated: [ Northstar Horizon Games Wanted ] 11/29/2006 Picked up this system, plenty of manuals and Teleray monitor. As yet untested">... [ read more ] |
Did Robots Take Over?by billdeg Total messages in this thread: 1 On my way to the Vintage Computer Festival 9.0 I stopped into a small antique store and found a copy of Science and Mechanics Magazine February 1963 with a post-war sci-fi-looking robot on the cover. In an era where computer-controlled robots was still science fiction, this article provides a glimpse of one author's view about the future of robot technology. Did robots take over? I don't think so.">... [ read more ] |
Tandy 1000 HXby billdeg Total messages in this thread: 1 Dual drive model. Boots to internal ROM: MS DOS 2.11 and "Personal DeskMate" application. Picture of Tanday 1000 HX">... [ read more ] |
Volscan - first desktop with a GUI?by billdeg Total messages in this thread: 1 Read entire story After reading the July 1954 Radio-Electronics article by Angie Pascale titled "Volscan Speeds Up Air Traffic" could the Volscan console and light gun be the first desktop GUI to a computer?">... [ read more ] |
Looking for Commodore PAL monitorby billdeg Total messages in this thread: 1 I am Looking for Commodore PAL monitor in the USA East Coast if possible.">... [ read more ] |
Using ST-225 HD in CBM D9090 Driveby billdeg Total messages in this thread: 4 Updated: [ Working D9090 owner's club .... ] 04/14/2009 More on the Commdore D9090 hard drive with pics: http://www.vintag...ives/D9090_sn3674/ I have given up trying to find a 6-head Tandon 603s, and I decided to use a 4-head ST-225 because they are easier to find. I used a B-128 to format the drive. 1) On the controller (top) I snipped J14 jumper to make the D9090 think it was a D9060. This modification is necessary because the D9090 controller is set to use a 6-head drive. Clipping J14 converts the controller into a de-facto D9060 which expects a 4 head drive. The D9060 came with Tandon 602s. 2) I removed the Tandon 603s hard drive that originally came with the drive, reassembled w/o cover. 3) ran a quick test to be sure that the drive was put back together safely: > ?ds$ [enter] 73, CBM DOS 3.0.0 etc 4) I used the following command: >header "degnan",d0,i01 [enter] Are you sure?">... [ read more ] |
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Total messages in this thread: 3
Updated: [ SWTP 4K BASIC on 680b ] 02/16/2007
Are the programs from the SWTPc 6800 interchangeable with the Altair 680? Is there a good web reference that compares these two? I have a working SWTPc 6800 and "SWTPc/Motorola" teletapes (programs for assembler, editor, etc). My plan is to load the tapes into memory of the SWTPc, perform whatever edits I need to apply while the program is in memory and then re-save to a new teletape for the Altair 680. I would then in theory load the tape on the 680 and viola it will work and the heavens will sing. There are a number of missing pieces to my plan (my teletype has a power problem to be fixed, I have never actually used a teletype before, I need an S I/O card for the Altair 680)...minor issues, ha ha Stay tuned...">... [ read more ]