Texas Instruments SR-40| . |
| Texas Instruments SR-40 |
| . |
| Datasheet | Years of production: | · | Display type: | 7-segment |
| New price: | · | Display color: | Red | |
| · | · | Display technology: | LED | |
| Size: | 3"×5½"×1½" | Display size: | 8+2 digits | |
| Weight: | 6 oz | · | · | |
| · | · | Entry method: | Algebraic with precedence | |
| Batteries: | BP-8 (2×"AA" sealed NiCd) or 9V alkaline | Advanced functions: | trg, exp, log, drg | |
| External power: | TI AC-9132 adapter (5.7V AC 240mA) | Memory functions: | + | |
| I/O: | N/A | · | · | |
| · | · | Programming model: | N/A | |
| Precision: | 11 digits | Program functions: | N/A | |
| Memories: | 1 | Program display: | N/A | |
| Program steps: | N/A | Program editing: | N/A |
Once again, a
calculator that doesn't belong in my collection of programmable calculators. Yet it's
here, a result of another irresistible thrift store bargain.
The SR-40 is, for all practical intents and purposes, identical to one of the most popular calculators ever made, the TI-30. It's the archetype basic scientific calculator with trigonometric, exponential, and logarithmic functions, parenthesis entry, and a single memory.
The TI-30, SR-40, and variations thereof represent an enormously successful line of calculators. Just visit a supermarket or drugstore today; chances are you'll see a derivative of this basic model that, despite its more colorful appearance and the presence of a few extra functions, will be nearly identical in terms of functionality to these old models.
|
This Web page copyright ©2005
Viktor T. Toth
|
