Odds & Ends


Here are some files that might be useful to somebody but which aren't worth building a whole web page for.

Kaypro 10

A Kaypro 10 that I was given had a number of source files in one of the user directories.  A quick web search indicated they weren't already on the web.  I snarfed them for posterity and present them here.  On boot the screen reads:
* KAYPRO 10 v 1.9E *
Then it prints a version string and settles into the command prompt.
KAYPRO 10 CP/M Version 2.2F
A0>
Each file was dumped twice and compared for integrity.  Your browser might think these are some type of quicktime file because of the suffix, but they are plain old ascii.  If you can't view them in your browser, save them and open them in your favorite editor.
Source File Purpose
baud.mac Adjust the serial port baud rate
check.mac Verify the hard disk / Read validate (config'd for verify only)
dsfmt.mac Double density diskette formatter
dsmenu.mac Single/double density diskette formatter
dsvfy.mac Diskette verifier
format.mac Verify the hard disk / Read validate (config'd for format and verify)
funct.mac I/O function library
hbios.mac CP/M 2.2 CBIOS
lines.mac Line drawing routines
ovlram.mac System overlay RAM used by the ROM software
pixel.mac Pixel set/reset/test routines
putovl.mac Put system / Put overlay (config'd for putovl)
putsys.mac Put system / Put overlay (config'd for putsys)
ram.mac System scratch RAM sued by ROM software and overlay
rom19e.mac All BIOS modules inlined in one file
safety.mac Park hard disk heads
term.mac Terminal software
Here are all the files zip'd up: kaypro10_source.zip

Northstar Horizon

Here are five years of the North Star Horizon Compass newsletter, published by INSUA.  Each year is a separate pdf file; each is about 4-5 MB, containing only image scans; no OCR.

Interact Model One Computer

I recently (early 2008) acquired an Interact Model One Computer off Ebay.  This is a later version of the Interact  Home Computer System.  Although it has been repackaged for easier assembly and more reliable operation, it appears to be electrically identical.

Sadly, the computer got somewhat damaged in transit, but it still works.  I couldn't find schematics online, but I was helped out by Joe Britt, who kindly sent along the following scan of the schematic.  He said it was OK to post it, and so here it is for your benefit.

InteractSchem.pdf  (six 11"x17" pages, 3.5 MB)
While I was poking around in the machine, I dumped the ROM (a masked ROM, EA 8316E093, date code 7836F, I believe the label says).  This ROM has the same pinout as a single voltage 2716 EPROM.  If yours gets corrupted, the 2716 will replace it nicely.
interact_boot_rom.hex
If you have any other documents from the Interact computers, please send them along.

Feedback

If you want to contact me for whatever reason, try me at frustum@pacbell.net.

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Last updated: February 2, 2008