The original IMSAI 8080 was featured in the
1983 movie WarGames. A high school student used it to hack
into a defense department supercomputer and almost started World
War III.
Harte Technologies is currently designing the processor and
I/O boards for the IMSAI Series Two. The processor
board (MPU-C) consists of a Zilog
Z8S180 microprocessor running at 20MHz, programmable
interrupt controller, 1MB of static RAM, a 128K FLASH device,
and provision for a standard JEDEC compatible
EPROM. The MPU-C interfaces to an IEEE-696
compliant backplane via a custom designed localbus to IEEE-696
bridge implemented in a Lattice
Semiconductor M4A5-256/128 CPLD.
The IMSAI Series Two
I/O board utilizes an SMC Super-I/O chip to provide two serial
ports, a parallel port, keyboard and mouse ports, as well as
floppy disk support. External logic is used to support
two independent IDE channels, and adapts the standard IDE
interface to the 8-bit IEEE-696 bus. The full text of
the IEEE-696
specification can be downloaded here.
I haven't scanned or otherwise converted most of the images
yet.
