computer Sinclair's first personal computer with a colour

display. The Spectrum used the Zilog Z80 processor like its

predecessors the ZX-80 and ZX-81. It was originally

available in 16k and 48k versions using cassette tape and

later grew to 128k and sprouted floppy disks. It had a

wider and more solid case and a marginally better "dead flesh"

keyboard. Unlike the earlier models, it didn't require the

presence of a cold carton of milk to prevent it overheating.

It was possibly the most popular home computer in the UK for

many years.