13 Sep
2014
13 Sep
'14
11:44 a.m.
On Fri, Sep 12, 2014 at 6:15 PM, Bill Kotaska <bkotaska at charter.net> wrote:
Seems to be lots of info out there for IMP-16 but
anyone heard of this
IMP-8A/521D?
A few years ago I found a book with some IMP-4 details, but I've never
found anything on the IMP-8.
I have a homebrew IMP-16 system, originally built by John List. It's
based on a CPU board from National Semiconductor, but John designed
his own memory, video, and floppy disk controller boards, and made
PCBs.