BMS-203

CER-203: CPU testing

CER-203 is a central unit of early digital computer developed by Mihajlo Pupin Institute (Serbia) in 1971. It contained both central processing unit and primary memory.

Specifications

Central Processing Unit:

• Number of instructions: 32
• Performance:
  • one 16-cycle instruction: 20 μs
  • one single cycle instruction: 5 μs
  • addition and/or subtraction of two 15-digit numbers: 20 μs

Primary memory:

• Capacity: 8 kilowords
• Speed (cycle time): 1 μs
• Complete, autonomous memory error checking
• Parity control

See also

• CER-203 computer
• CER Computers
• Mihajlo Pupin Institute
• History of computer hardware in the SFRY