IMSAI VDP-40

Evolution of IMSAI 8080, which was evolution of Altair 8800 kind of.

Was based on Intel 8085, instead of Intel 8080 as previous IMSAI


Many variants sold.


Quote:

For example, the VDP-40 had two 5-1/4" disk drives, a 9"
40-character-wide display and a 2K ROM monitor all in one cabinet. The
built-in keyboard had a 8035 microprocessor and a serial interface to
the main board. The VIO-C video board had 2K firmware ROM, 2K character
generator read-only memory (ROM) with 256 characters and 2K of refresh
memory.