SC-40

The SC-40 was a PDP-10 clone from Systems Concepts; their last PDP-10 product. A single processor SC-40 ran at up to eight times the speed of a single processor KL10.

Its CPU was microcoded, with 32K 80-bit words of read/write microcode RAM; it had a 32K-word write-through cache. Main memory (semiconductor ICs) was protected with ECC, to allow single-bit error correction and double-bit error detection.

Numerous I/O peripherals were available:

• an IBM-compatible channel interface;
• a dual-ported SCSI interface;
• a Computer Interconnect interface;
• an FDDI interface;
• an Ethernet interface;

Each SC-40 included a SPARC microprocessor front end, which performed console functions such as loading the microcode, and diagnostics on the entire system.

See also

• CompuServe - builder of SC-40's under a deal with Systems Concepts

External links

• SC-40 Computer Systems - archived
• SC-40 from CompuServe - many photos
  • SC-40 Computer Systems