Sinclair ZX-80 first Sinclair kit?

From: Pete Turnbull <pete_at_dunnington.u-net.com>
Date: Mon Aug 31 02:50:24 1998

On Aug 30, 20:15, Sam Ismail wrote:
> Subject: Sinclair ZX-80 first Sinclair kit?
>
> I believe I've heard reference to a kit computer that Sir Clive Sinclair
> sold before the ZX-80. Is this correct? If so, what was it called, what
> CPU was it based upon, and what year did it come out?

I think you're referring to the MK14. It's a single board about 4" x 9"
with a 20-key hex keypad and LED hex display at one end. The processor is
an SC/MP, with 512bytes ROM (2 ICs) and 256 bytes of RAM (expandable to
almost 2K) on early versions (I think later versions had more).
 Programming was done by entering opcodes in hex. It came out in late 1978
or early 1979, AFAIR.

Take a look at
http://users.aol.com/mk14emu/
for more information.

-- 
Pete						Peter Turnbull
						Dept. of Computer Science
						University of York

Received on Mon Aug 31 1998 - 02:50:24 BST