SBC 6502
6502
6809
Z80
Other
MOS Technology made the KIM-1 to demonstrate the
new ICs developed: the 6502 cpu and the 6530 RIOT. It became a
huge success, many KIM-1s were sold and used in all sort of
applications ranging from home computer to industrial automation.
See also the 6502 Info pages.
When MOS Technology became a part of Commodore, the logo on the
PCB in the right upper corner changed to Commodore C=MOS as shown
on the board below.
Radio Bulletin (Dick de Boer, Paul de Beer, me, others) has published much articles on the KIM-1
This board is modified by the dutch company Visser Assembly from Alkmaar to separate the keyboard and led displays form the board in an external case. This board has been used in factory automation, requiring a closed case with additional boards.
A KIM-1 in a case, imported form the U.S.A. in 2004.
My first computer, started as a SBC, extended to 40K RAM, MiniDigitalCassetteRecorder, many I/O.
The KIM-1 is bought in 1978, a Rockwell! labeled machine (made by MOS Technology).
See the 6502 Info pages for
technical information, publications etc.
KIM-1 in selfbuild case.All I/O is available on the front. Handy for experiments. The big connector is the expansion connector for the RAM and I/O box (see below). Also a connector for a serial terminal is on the front.
Underneath the big KIM-1 print 6 RAM cards (2K) can be placed. The cards you see were made by hand: the print layout was drawn with ink on the copper directly.
Lots of power required: 5V 5A, 5V1A, +12V 1A, -12 1A
The cover removed and the KIM-1 visible.
On the LED's a red plexiglass cover is glued.
The RAM and I/O expansion. Maximum of 32K RAM. 2 serial port card (ACIA) and one PIA+VIA card.
Again lots of power required!
The analog cassette recorders under control of the KIM-1 on top,on the bottom the homemade video terminal (24 row of 32 characters, uppercase only (2513 character generator).
The box with the two Mini Digital Cassette Recorders (same as in Philips P2000 computers) with a speed of 2400 baud.
Also in this box is the Radio Bulletin graphical display, the flatcables on the left are to be connected to a PIA card, the BNC connector delivered the video signal.
An advertisement for the KIM-1