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Programmable calculatorsTexas Instruments SR-10
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Datasheet Years of production: · Display type: 7-segment
New price: · Display color: Red
· · Display technology: LED
Size: 6½"×3"×1½" Display size: 8+2 digits
Weight: 10 oz · ·
· · Entry method: Algebraic
Batteries: 3*×"AA" NiCd or alkaline Advanced functions: N/A
External power: TI adapter Memory functions: N/A
I/O: N/A · ·
· · Programming model: N/A
Precision: 8 digits Program functions: N/A
Memories: N/A Program display: N/A
Program steps: N/A Program editing: N/A

*Older versions of this calculator used 4 "AA" battery cells.

sr10pr.jpg (22595 bytes)The SR-10 is a truly ancient Texas Instruments calculator. It is one of the first "electronic slide-rule" calculators, and predates the first true scientific calculators from this company. It does, however, have some scientific features, such as an exponential display and keys for calculating the reciprocal, square, and square root.

Back label imageLike other four-function calculators, the SR-10 doesn't belong to my collection of programmable calculators. Recently, however, I came into the possession of what appears to be a genuine SR-10 prototype, as evidenced by the back label of this machine. I have since traded this calculator for another machine, but it deserves to be mentioned anyway due to its uniqueness.