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The Good Old Days

Computers of the old days and, especially programmable pocket calculators, were not just mass-produced, noname PC compatibles like nowadays, but possessed a personal character. Whenever you met someone with the same calculator, heavy insider information exchange was the consequence. You knew every bit personally, you were proud of every single byte and tact cycle you optimized away. It was always a highlight to find an undocumented feature! (One of the most amazing commands is one which doubles the processor frequency of HP28S). The date in front of the model is the buying date.

My Pocket Calculators

My Programmable Pocket Calculators

My Computers

Notable Computers


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