Science of Cambridge (Sinclair) Mk.14 Micro Computer - vintage
Here's a look at the Science of Cambridge (Sinclair) Mk.14 Micro Computer, sold as a kit in the UK in the late 1970s, for around 40 pounds. Approximately 20,000 were manufactured. It used a National Semiconductor SC/MP CPU, had only 256 BYTES of RAM (not KB, or MB), which was expandable to 640 bytes on board or 2,170 bytes maximum. It had only an 8 or 9 red LED seven-segment hexidecimal display, and pre-dated the well-known Sinclair ZX-80 and ZX-81 computers. This one was owned by my dad, who worked on early computers at the British Railway Tecnical Centre (now closed) in Derby. Last time I checked there was only one available on eBay, the buyer was asking for $1500 for an unassembled kit.