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The Sharp EL-5120 is a scientific programmable calculator. It has about 1 KB of total RAM available to the user, and has 4 basic operational modes: Real mode: it is the basic operational mode for directly performing standard algebraic and statistical calculations, as well as evaluating user-defined functions and numerically integrating them.
The Sharp PC-1211 is the first pocket computer ever released, marketed by Sharp Corporation in March 1980. [1] [2] The computer was powered by two 4-bit CPUs laid out in power-saving CMOS circuitry. One acted as the main CPU, the other dealt with the input/output and display interface. Users could write computer programs in BASIC.
The PC-1430 is a stripped-down variant of the PC-1401. The display and case are mostly the same (except for fewer keys), but the PC-1430 lacks the calculator modus (for calculations the BASIC mode has to be used), it offers less functions, only 2 KB RAM, and no speaker or buzzer.
The simplest example given by Thimbleby of a possible problem when using an immediate-execution calculator is 4 × (−5). As a written formula the value of this is −20 because the minus sign is intended to indicate a negative number, rather than a subtraction, and this is the way that it would be interpreted by a formula calculator.
The Sharp PC-1403 was a small scientific calculator and pocket computer manufactured by Sharp. It was the successor of the Sharp PC-1401 , and had better display, more RAM and better system software.
All the models above support Direct Algebraic Logic (D.A.L.), which is an infix input system used by Sharp similar to Casio's V.P.A.M. EL-501W does not support D.A.L., and only has the 7-segment digit line in EL-509W. It only supports 8-digit mantissa display in scientific notation mode. Functions are further stripped down from EL-500W.
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Pages in category "Sharp programmable calculators" The following 40 pages are in this category, out of 40 total. This list may not reflect recent changes. E.