What is this Data IO Thingie?

[Michael Holley]

These are early programming adapters for the Data I/O Model 19 and 
earlier programmers. These were used before Data I/O developed the 
UniPak module which did all PROMs and EPROMs (except the 1702 ERPOM)

There are two cards in the large Programming Pak, an analog card and a 
digital control card. (I forget the correct names.) The digital card had a prom 
based state machine to control the programing algorithm. The analog card 
generated the waveforms.  This pak could be used in early Data I/O 
programmers that did not have a microprocessor.

The you wanted to program a different part you need to swap cards. 
The smaller parts a pinout adapters.

The two white things in the lower part of the picture look like your feet.

http://home.earthlink.net/~pkaneko/data_io_stuff.jpg

-------------------------------
Michael Holley
swtpc6800 at comcast.net
www.swtpc.com
-------------------------------