Sharp PA-7C12
Brief History
Sharp Corporation introduced the world’s first electronic diary (PA-7000) with intelligent IC card system in 1987. An expanding selection of softwares were available during the years for the PA series. The PA-7C12 IC card added functions of a scientific calculator to the organizer, become similar to the popular EL-556 (EL-576) model (statistics mode, displaying physical constants) with extra features such as formula-interpreting operation and 26 independent memories which can be identified with english letters. For retaining memory contents, the card contains a replaceable CR2016 type battery.
Similar card for the export series IQ (OZ) does not exist, but the card allows writing and executing BASIC programs contains such scientific calculator mode.
| Manufacturer: | Sharp Corporation (Japan) |
| Mfg. date: | 1988 |
| Size: | 5,4×8,5×0,2 cm |
| Weight (ready for operate): | 17 g |
| Type: | scientific |
| Capacity: | 10+2 digits (input/display) 12+2 digits (internal precision) |
| Operating logic: | formula-interpreting |
| Registers: | 2 standard (with saving the pending operation) 16 bracket (with saving the pending operation) 26 memory (with aritmetic) |
| Features: | +/-change sign (direct entry of negative numbers) Ffloating-point notation Fixfixed-point notation: the listed decimals can be chosen (0-9) Sciscientific (exponential) notation Engengineering notation Sqrsquare root x2square pivalue of pi (3.1415..) can be recalled 1/xreciprocal trigtrigonometrical functions (sin, cos, tan and inverses: arcsin, arccos, arctan) DMS-DDconversion of decimal and sexagesimal numbers logexponential and logarithmical functions (10- and e-base) yxraising to power SDone variable statistics: calculating mean and standard deviation LRtwo-variable statistics: linear regression P-Rconverting coordinates between rectangular and polar systems n!factorial |
| Display: | none |
| Power: | 1×CR2016 |
| Test results: | trigonometry:result of sin-1(cos-1(tan-1(tan(cos(sin(60°)))))), reference value: 60. 60.0000006699 exponential:result of 0.999160000, reference value (first 14 digits): 3.0068804206375×10-70 3.00688090276E-70 |
PA-7000 with printer
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