MK14
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The Microcomputer Kit 14, or MK14 was a computer kit sold by Science of Cambridge of the United Kingdom, first introduced in 1977 for UK£39.95. The MK14 eventually sold over 50,000 units. It used a National Semiconductor SC/MP CPU (INS8060), 256 bytes of random access memory (RAM) which was expandable to 640 bytes on board and 2170 bytes total. It used an 8 or 9 Red light-emitting diode (LED) seven segment display, there was also optional VDU supporting 32×16 text or 64×64 graphics. Input and output was a 20 key keyboard and reset switch, with an optional 128 bytes of RAM and 16 I/O lines available by adding an INS8154N RAM/IO chip. Cassette-based and PROM storage were optional extras, a sound card was not included but a design for one was provided.
[edit] External links and references
- Planet Sinclair - MK14 articles
- Planet Sinclair - MK14 photo gallery
- The Sinclair / Science of Cambridge MK14 Web Site, includes emulator software
- Making a reproduction MK14 - Includes original manuals/schematics
