IMSAI 8048 - Retro Computing Web Portal

The IMSAI 8048 Home Computer
IMSAI Manufacturing Corporation [San Leandro, CA, USA], dated August 1977,  developed the world's first single-board implementation of the Intel 8048. The 8048 Control Computer was suitable to use with model railroads, household light systems, energy conservation, and other embedded control  applications.

Board features:

• Cassette Interface / Papet tape
  

• Serial I/O [RS232]
  

• 5 Relays, able to handle 3 Amps at 110V
  

• 1 K Byte [optional 1 KByte] user programmable memory
  

• DC power supply
  

• 9 digit 7-segment display
  

• System features und functions:
  

• 2KByte Monitor [ROM on-chip, or EPROM on-chip or  off-chip]
  

• Enter programs into memory
• Enter data into both internal and external memory
• Execute user program
• Execute user program with software breakpoints
• Save and receive programs from serial port or tape
• Register modifications 
• self-diagnostic functions