A soon as the Intel single chip microcomputer was available, IMSAI developped this single board computer. The 8048 processor offered integrated RAM, ROM, I/O, Timer/counter and interrupts. IMSAI added a 24 keys hexadecimal keyboard, a 9-digit LED hex display, 26 I/O lines connectors, 5 relays, Teletype and audio cassette interfaces. 2 Kb of ROM and 1 Kb. of RAM was intalled. Sockets was available for one additional Kb. The system was expandable up to 64 Kb. of RAM off board. The 8048 board was intended for computers newcomers particularly interested in interfacing techniques.
Thanks to Thomas Fischer and his IMSAI site for the pictures and some information.
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Good computer for teletype...
Sunday 10th April 2022
Andrei (Russia)
I would like to buy this......18 years later. if you still have it? the IMSAI 8048
Sunday 23rd May 2021
Shawn (Alaska)
Does anyboday have layouts for the s-100 motherboard from a imsai 8080 i want to reprint them.
Monday 25th August 2003
Dominic (Holland)
NAME
8048
MANUFACTURER
IMSAI
TYPE
Home Computer
ORIGIN
U.S.A.
YEAR
1977
KEYBOARD
24 pad hexadecimal
CPU
Intel 8048
RAM
1 Kb. (processor) + 1 Kb. (board)
ROM
1 Kb. (processor)
SIZE / WEIGHT
8.5 x 10 inches
I/O PORTS
26 I/O pins, Teletype, tape recorder, relay output, power supply
POWER SUPPLY
5V. external P.S.U.
PERIPHERALS
RAM expansion up to 64 Kb. 5V. Power supply $99
PRICE
ROM kit version: $249 EROM kit version: $399 ROM assembled version: $299 EROM assembled version: $499
