I seem to remember that my ZX81 Basic allowed a computed "goto" statement, which my later Amstrad BASIC didn't. I mostly used it for type-ins from magazines. I

I seem to remember that my ZX81 Basic allowed a computed "goto" statement, which my later Amstrad BASIC didn't. I mostly used it for type-ins from magazines. I also had a little dabble in machine code (nearly forty years later I still remember the opcode for Return is "C9") but the learning curve was too steep for me to do anything much. I still wonder whether given tutelage or encouragement in programming I could have got way more out of my computer as a child.