My computer history

1. My first ever computer, back in 1979 was an Sinclair MK14 and cost me 39.99 in kit form.
This was nothing more than a programmable calculator with 256 BYTES of RAM.
The buttons were the very first generation of conductive membrane and were absolutely useless!!

First job was to change teh keyboard buttons!

I used to do a lot of MK14 programming, so much that would sometimes count in hexadecimal.

PDF manual.

Circuit of the MK14:

Old coding sheet, no dissassembler!! I used to know this by heart!
My old coding sheet for the 8 bit processor!