Distinctive features: The first of a line of Texas Instruments "Slide Rule" models.

Technical details:Display is red LED, with scientific notation giving 8-digits mantissa and 2 digits exponent.
Semi-scientific "Slide Rule" functions.
Main integrated circuit - Texas Instrument TMS0120NC.
3.6v (3x AA rechargeable cells).
76 x 158 x 37 mm (3.0 x 6.25 x 1.5").
Made in U.S.A.
Introduced in November 1972, with a direct mail price of US$149.95.

The Texas Instruments SR-10 has semi-scientific functions, comparable to the capabilities of a mechanical slide rule, though initially at about ten times the cost. There followed from Texas Instruments, and many other companies, more models of electronic slide rules, with increasing capability and reducing price until within a couple of years the mechanical slide rule became obsolete.

Kindly donated by Francis Hookham 

Manufacturer: Texas Instruments
Date: 1973

This exhibit has a reference ID of CH31291. Please quote this reference ID in any communication with the Centre for Computing History.

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