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Tip on Copying CBM disks (non-C64)
This is a copy of a post from CBM-hackers mailing list, from Steve Gray. I am going to give it a try.
"..I've had good success transfering 8x50 disks using a B128, serial cable, cbmlink, and my own CBMXfer (not really required if you can use the cbmlink commandline interface). The nice thing abo... read more
by billdeg - 11/28/2009 13:06 - Total messages in this thread: 1
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SWTPC 6800 memory upgrade
I installed an additional 4K successfully onto the MP-8M2 RAM card.
Now I have access to 8K
0000-0fff = 4K
1000-1fff = 8K
A000- ?? = MP-A2 processor scratch RAM... read more
by billdeg - 11/24/2009 21:13 - Total messages in this thread: 1
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Creative Computing BASIC Library
I am not sure where or when I got these, but here is a collection of BASIC programs from Creative Computing magazine. Using a terminal program like Teraterm a person can feed these BASIC programs by using the "send file" command. Once the proram has been downloaded, edit to operate on the system t... read more
by billdeg - 11/21/2009 18:18 - Total messages in this thread: 1
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Sharp PC-7100 Portable
Yet another 80's portable, this time from Sharp Electronics.
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Amstrad PCW8256
The Amstrad PCW8256 is unique because the storage media is 3 inch diskettes (not 3.5"). This is the first model of the PCW "Joyce" line.
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NEC PC-8201A Laptop
For the past six months I have been doing a lot of reading and research on the early laptop computers. The NEC 8201A is not the first, but it's an excellent example of what "laptop" meant in 1983. The 8201 is actually a re-packaged Kyotronic KC-85 (named for it's Intel 8085 processor), and also is i... read more
by billdeg - 01/25/2008 20:14 - Total messages in this thread: 2
Last Post: Correction - there is no Kyosel company 11/03/2009
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PET 4016 to 4096 Project (+64K RAM)
I finally got around to attempting to install a CBM PET 4032 mother board in my 4016 PET.
The 4016 motherboard can be upgraded with the 4032 (32K RAM version) in a matter of minutes... read more
by billdeg - 10/25/2009 21:36 - Total messages in this thread: 2
Last Post: Next Steps PET 4032 Board Repair 10/29/2009
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Saving Memory to Disk Commodore PET
Here are the directions for saving a block of memory (as in a program written to memory from a machine language program loaded from cassette) to disk.
1. format your disk. I have a 2040 attached to my Commodore PET 2001-16N
OPEN 1,8,15
PRINT#1,"N0:DISKNAME, 01"
2. Load the program you h... read more
by billdeg - 10/27/2009 22:11 - Total messages in this thread: 2
Last Post: Copy Machine Lang PET Cassette Programs 07/22/2010
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Teletype ASR 33 Woes
I knocked over my working teletype ASR 33. Now it does not work correctly. After locating all of the pieces, I carefully re-installed as much I could. I was only partially successful.
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TRS 80 Model 1 with Composite Mod
I am working on hacking a TRS 80 Model 1 that will work with a composite monitor. I found this thread from 2003 about it.
http://www.classiccmp.org/pipermail/cctech/2003-July/017197.html
More detail to come.... read more
by billdeg - 10/25/2009 11:10 - Total messages in this thread: 1
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PET 8032 with 64K mem expansion
Because I don't have a working PET 4032 motherboard I decided to install a PET 64K me... read more
by billdeg - 10/25/2009 07:21 - Total messages in this thread: 1
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S-100 Buffered Prototype Board
Andrew Lynch and I have just completed the layout of a new S-100
Prototype Board that is designed to help take away the initial drugery
of building S-100 prototype boards. We have laid out the board so all
the address and data lines are buffered through 74LS245's or
74LS244's. Most of the c... read more
by monahan_z - 10/22/2009 12:24 - Total messages in this thread: 2
Last Post: I/O board 10/23/2009
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Processor Tech General Purpose Module
For my own reference, I took some pictures of Bill Sudbrink's Processor Tech General Purpose Module card, which is similar to mine except that he made some modifications to protect some of the F000+ memory when CUTTER and NorthStar DOS try to use the same spaces. Here are the pictures I took:
read more
by billdeg - 09/20/2009 10:16 - Total messages in this thread: 4
Last Post: Further attempts to fix PT GPM card 10/18/2009
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Burroughs L7000 Computer
I have been contacted by a jewelry store in Newark Delaware who has a Burroughs L7000 computer to donate. I have helped make arrangements to have this picked up and delivered to the MARCH museum in Wall New Jersey, part of the InfoAge complex at Camp Evans.
pics... read more
by billdeg - 10/15/2009 21:55 - Total messages in this thread: 1
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1975 Microcomputer Directory
A directory of microcomputers was compiled by Robert M. Grossman, Associate Editor of EDN Microprocessor Design Series Volume II. Robert wrote an ... read more
by billdeg - 10/13/2009 22:01 - Total messages in this thread: 1
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