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On this Day in 1981: Launch of the Sinclair ZX81

Okay, own up.... Who had a Sinclair ZX81 and what was the first thing you programmed on it...? ? Keyboard
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  • Former Community Member
    0 Former Community Member
    I had a ZX Spectrum and used an audio cassette to store programmes. I did not even have a colour television to use as a monitor - had to use a small b/w tv. My first programme was a very basic assembler which I used to do simple animations - very simple!

    Unfortunately I did a clearout some years ago and gave it to charity in its original box. I am sorry now.


    I also had a Sinclair programmable calculator which allowed for a programme of 50 key clicks (one key click was one step in the programme).

    Was very proud of myself when I programmed the calculator to do the factorial function - it just fitted in 50 steps! There was no way to store the programme for transmission to the calculator, so I had to write it down on paper and type it in if I wanted to run it. So only a geek like myself would bother writing a 50 step programme for this device!!

    I still have this calculator.



Reply
  • Former Community Member
    0 Former Community Member
    I had a ZX Spectrum and used an audio cassette to store programmes. I did not even have a colour television to use as a monitor - had to use a small b/w tv. My first programme was a very basic assembler which I used to do simple animations - very simple!

    Unfortunately I did a clearout some years ago and gave it to charity in its original box. I am sorry now.


    I also had a Sinclair programmable calculator which allowed for a programme of 50 key clicks (one key click was one step in the programme).

    Was very proud of myself when I programmed the calculator to do the factorial function - it just fitted in 50 steps! There was no way to store the programme for transmission to the calculator, so I had to write it down on paper and type it in if I wanted to run it. So only a geek like myself would bother writing a 50 step programme for this device!!

    I still have this calculator.



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