This modular computer can run RomWBW, which includes a very good implementation of CP/M, and also the Small Computer Monitor.

Both firmware options can be installed at the same time as the memory module has two sockets for FLASH memory chips. A simple jumper selects which firmware is used.

A later design is now available: SC792

Set of boards consisting of:

• SC111 – Z180 CPU module
• SC119 – Z180 memory module
• SC112 – 6-slot backplane with power input, or
• SC116 – 3-slot backplane with power input

Once built this minimal system contains:

• Z180 processor
• 512k bytes RAM
• 2 x 512k bytes FLASH
• 18.432 MHz clock
• Voltage supervisor and reset
• Two asynchronous serial ports
• Backplane with power input

You can purchase this computer as a kit from Tindie.

Notes

• This product is designed for hobby use and is not suitable for industrial, commercial, or safety-critical applications.
• The product contains small parts and is not suitable for young children.
• RC2014 is a trademark of RFC2795 Ltd.
• RomWBW is copyright Wayne Warthen and has been provided free of charge with his permission.
• The Compact Flash interface circuit has been designed by Tadeusz Pycio and reproduced with his permission.

USA: not currently shipping due to new tariffs 24 July 2026