Science of Cambridge MK-14

The Microcomputer Kit 14 (MK 14) was Sinclair's (at that time called “Science of Cambridge”) first computer introduced in 1977 for UK £39.95. Based on the National Semiconductor SC/MP processor, the MK 14's capabilities were minimal by today's standards - modern digital watches are considerably more powerful!

Despite the MK 14's severe limitations, it was one of the most important British computers ever produced. The MK14 eventually sold over 50,000 units. Its success in finding a previously untapped market was not lost on either Sinclair or his employees, notably Chris Curry, soon to break away and establish Acorn. Without the MK 14, there probably would never have been a ZX81, Spectrum, BBC Micro or Archimedes, and the British computer scene would have been very different.

The MK14 specification:
1/2k ROM Monitor
256 bytes RAM (expandable to 640 bytes on board and 2170 bytes total)
8 (or 9) Red LED seven segment display.
20 key keyboard and reset switch
Optional 16 I/O lines available by adding a IC
No sound card (design provided)
No backing store (cassette and PROM storage an optional extra)
Optional VDU supporting 32x16 text or 64x64 graphics
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source: http://www.computinghistory.org.uk/det/8095/science-of-cambridge-mk14/

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Science of Cambridge MK-14

The Microcomputer Kit 14 (MK 14) was Sinclair's (at that time called “Science of Cambridge”) first computer introduced in 1977 for UK £39.95. Based on the National Semiconductor SC/MP processor, the MK 14's capabilities were minimal by today's standards - modern digital watches are considerably more powerful!

Despite the MK 14's severe limitations, it was one of the most important British computers ever produced. The MK14 eventually sold over 50,000 units. Its success in finding a previously untapped market was not lost on either Sinclair or his employees, notably Chris Curry, soon to break away and establish Acorn. Without the MK 14, there probably would never have been a ZX81, Spectrum, BBC Micro or Archimedes, and the British computer scene would have been very different.

The MK14 specification:
1/2k ROM Monitor
256 bytes RAM (expandable to 640 bytes on board and 2170 bytes total)
8 (or 9) Red LED seven segment display.
20 key keyboard and reset switch
Optional 16 I/O lines available by adding a IC
No sound card (design provided)
No backing store (cassette and PROM storage an optional extra)
Optional VDU supporting 32x16 text or 64x64 graphics
------------------------------------------------------------------------------------------------------------
source: http://www.computinghistory.org.uk/det/8095/science-of-cambridge-mk14/

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