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The Casio ClassPad 300, ClassPad 330 and fx-CP400 [1] are stylus based touch-screen graphing calculators. It comes with a collection of applications that support self-study, like 3D Graph, Geometry, eActivity, Spreadsheet, etc. A large 160x240 pixel LCD touch screen enables stylus-based operation. It resembles Casio's earlier Pocket Viewer line.
The Victor 3900 is the first electronic calculator to have been built entirely of integrated circuits (ICs). [1] [2] For its era, the 3900 is extremely advanced; it has a 4-inch (100 mm) cathode ray tube screen to produce a 5-line display, has separate memory for storing three intermediate results, supports numerical rounding, and is still "smaller than a typewriter".
The TI-59 is an early programmable calculator, that was manufactured by Texas Instruments from 1977. It is the successor to the TI SR-52, quadrupling the number of "program steps" of storage, and adding "ROM Program Modules" (an insertable ROM chip, capable of holding 5000 program steps).
The Oxford 300 was a scientific model with a limited number of functions (such as sin, cos, tan), which sold for £29.95, much lower than the competition. [3] [6] The last two models, the Oxford Scientific (1976) and Oxford Universal were the most advanced of the range. [3]
The first American-made pocket-sized calculator, the Bowmar 901B (popularly termed The Bowmar Brain), measuring 5.2 by 3.0 by 1.5 inches (132 mm × 76 mm × 38 mm), came out in the Autumn of 1971, with four functions and an eight-digit red LED display, for US$240, while in August 1972 the four-function Sinclair Executive became the first ...
2140 - The 2140 is a grey/gray 8 oz. desktop calculator with a LCD display that uses L1131 batteries. It also includes a Mark Up key, a PC touch key, selectable decimal and rounding switches and a backspace key. It has 4 key independent memory. [15] 6400 - The 6400 is a grey/gray and white 6.4 oz desktop calculator with a tilted LCD display. It ...
Casio V.P.A.M. calculators are scientific calculators made by Casio which use Casio's Visually Perfect Algebraic Method (V.P.A.M.), Natural Display or Natural V.P.A.M. input methods. V.P.A.M. is an infix system for entering mathematical expressions, used by Casio in most of its current scientific calculators.
The first model in the series, called the fx-CG100, retains the same power source as its predecessors (4 AAA batteries) instead of Li-ion batteries used by contemporary calculators and also adopts a USB C connector for connecting with a computer (instead of a mini-USB connector) while retaining the 2.5 mm I/O connector for connecting to other ...