TI-74 BASICALC & TI-95 PROCALC

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Australia The Clueless Engineer
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Published on ● Video Link: https://www.youtube.com/watch?v=TeNjv_mGMa0


Duration: 40:49
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A "quick" video having a look at the successor to Texas Instruments' CC-40 ... the TI-74 BASICALC, and its cousin the TI-95 PROCALC.

The TI-74 is a true handheld BASIC computer (with a calculator mode) whereas the TI-95 is a keystroke programmable calculator. They are very similar in construction - well, definitely different displays.

Both have 8KB of RAM (HM6264) and 32KB of ROM (HN61256) and both use a TMS7000-family processor. From what I pulled apart, the TI-74 has a C70009 and the TI-95 has a C70011. Both have very similar layout.

Their memory can be expanded with a CR2430 battery-backed 8KB RAM cartridge ... but after 40-odd years I'd suspect the contents have been long lost :(

You can connect peripherals via a 10-pin header called the DockBus, such as a printer or an unobtainable cassette interface CI-7.

Connecting a Commodore Datasette to other computers:
https://youtu.be/WUvED5C94RU
https://github.com/Jeff-Birt/C2N_Adapter



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Tags:
ti74
ti95