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Last modified 2020-12-28

IMSAI 8080

Type:8-bit hobbyist computer
CPU:Intel 8080A @ 2 MHz
Operating system:Optional CP/M, IMDOS, Basic and Fortran
Memory:ROM: ? KB
RAM: 256 bytes/4 KB SRAM
(Expandable with 16, 32 or 64 KB DRAM)
Graphics:LED indicators. Anything else is optional
Storage:Optional tape recorder
Optional 5 1/4" and 8" floppy drives
Optional 5 MB HDD
Input:Binary switching
Optional keyboard
I/O ports:Optional
Power supply: Mains (Linear)
+8 VDC, 28 A
+16 VDC, 4.5 A
-16 VDC, 4.5 A
Power consumption:Depending on options
Dimensions (W*H*D):495*178*432 mm (19.5*7*17")
Weight:? Kg (? lb), without options
Manufactured:USA, 1975-1978 (Discontinued)
Other: 22*S-100 expansion slots.
About 20000 units were manufactured.

New price 1976 in Sweden: SEK 3845:-for a basic kit consisting of a CPU card, chassie
with enclosure and power supply. A measly 4K SRAM memory bank lifted another SEK 840:-
from your wallet!

This computer also starred in the 1983 thriller "Wargames".
Related documents:CPU: Intel 8080A (579 KB)
Notable "ham" software: