The TI-30 was a scientific calculator manufactured by Texas Instruments, which was first introduced in 1976. The original T1-30 was discontinued in 1983, but the model series designation is still used by Texas Instruments today for its low and mid-range scientific calculators.

The TI-30 was released at the same time as the Texas Instruments SR-40, both of which were scientific models. However, due to a couple of cost-reducing changes, the TI-30 cost £14.95/$24.95 compared to £26.95/$49.95 for the SR-40. The differences were in the battery; the TI-30 was powered by a 9v battery while the SR-40 had a rechargeable battery pack, and the faceplate; the TI-30 had a printed key plate with unmarked black keys whereas the SR-40 had coloured, marked keys. Rechargeable battery packs were available to purchase separately for the TI-30.

The TI-30 (and SR-40) were built around the TI-0981 integrated circuit, a member of the TMC0980 single-chip calculator family. The complete electronics fit on the interior display board, alongside the calculator's eight-digit LED display.

Serial number 465307 0277RCI (week 02 1977) assembled in Italy and was kindly donated by Francis Hookham.

Manufacturer: Texas Instruments
Date: 1977

This exhibit has a reference ID of CH31286. Please quote this reference ID in any communication with the Centre for Computing History.

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