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1100-3A - The 1100-3A is a black and grey/gray 3.2 oz. desktop calculator made with 50% recycled plastic and has a 10 digit angled LCD display. It has 3-key independent memory and tax keys. [11] 1180-3A - The 1180-3A is a 4.8 oz black desktop calculator with a 12 digit angled LCD display. It is made with 40% recycled plastic and it has cost ...
The Cambridge was extremely small for a calculator of the time: [1] it weighed less than 3.5 ounces (99 g) and measured 50 by 111 by 28 millimetres (2.0 in × 4.4 in × 1.1 in). Power was supplied by four AAA batteries. [5] The use of cheap components was an important contributor to the unit's cost.
Sumlock-Anita Electronics also assembled in Britain some of the Rockwell hand-held calculators, including Rockwell models 8R, 10R, 18R, 20R, 21R, 30R, 31R. The "Panaplex" is a gas-discharge display, using 7 segments to represent each number, within a thin glass "sandwich". The numerals glow amber. This list of calculator models may not be complete.
The Sinclair Scientific Programmable, released a year later, was advertised as the first budget programmable calculator. Significant modifications to the algorithms used meant that a chipset intended for a four-function calculator was able to process scientific functions, but at the cost of reduced speed and accuracy. Compared to contemporary ...
Made in Japan, this was also the first calculator to use an LED display, the first hand-held calculator to use a single integrated circuit (then proclaimed as a "calculator on a chip"), the Mostek MK6010, and the first electronic calculator to run off replaceable batteries. Using four AA-size cells the LE-120A measures 4.9 by 2.8 by 0.9 inches ...
The Sovereign was one of the last calculators produced during Sinclair's foray into the calculator market that had started with the Sinclair Executive in September 1972. [1] The Executive had retailed for £80 when introduced, but in little over a year it was possible to purchase a Sinclair calculator for £20 and by November 1976 a model was ...
HP-19C calculator HP-29C with AC-powered battery charger. The HP-19C and HP-29C were scientific/engineering pocket calculators made by Hewlett-Packard between 1977 and 1979. They were the most advanced and last models of the "20" family (compare HP-25) and included Continuous Memory (battery-backed CMOS memory) as a standard feature.
The Hewlett-Packard 9100A (HP 9100A) is an early programmable calculator [3] (or computer), first appearing in 1968. HP called it a desktop calculator because, as Bill Hewlett said, "If we had called it a computer, it would have been rejected by our customers' computer gurus because it didn't look like an IBM. We therefore decided to call it a ...