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Cassette tape - the flash drives of the 80's

Remember cassette tape? I remember using these tapes to save and restore programs using a ZX81 when I was fifteen. The procedure was fraught with potential issues and a person had to be real thick skinned to use it! It might take a few attempts to successfully load a program and it was all about patience, I wonder if I should add, learnt to program on a ZX81 to my CV? There was no Internet and the only reference was manuals and magazines. And then there were the programming language books. In those days they were not called dummies!!!

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