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Tag: IBM PC

Texas Instrument TI-5200 Calculator

Posted on October 16, 2024June 14, 2025 By Bob No Comments on Texas Instrument TI-5200 Calculator

This working model was obtained from a local car boot sale. The TI-5200 was a desktop calculator introduced by Texas Instruments in January 1977 priced at around $150 USD. The main features are: The concept of integrating electronic circuits into a single device was first proposed by British engineer Geoffrey Dummer in 1952. However, it…

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