| Definition: | | 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. The tk-90x was a clone. |