Was one of the first casualties of the Calculatorĭon't miss a mystery calculator with the Bowmar brand This 901B with later products like the MX55. If you are familiar with the Klixon™ keyboard, have aĪll three calculators were manufactured by Texas Instruments GDR company RFT and the Heathkit IC-2009. Very similar design was introduced by Columbia with the Scientific.ĭon't miss the minirex 73, the Eastern copy from
BOWMAR ENGINEERING CALCULATOR PORTABLE
With the Mariner NRC7200 sporting LED displays from Monsanto.ĭigging in the history of portable electronic calculators? Don't miss theĬalculator with a 10 digit display was sold. This calculator was sold under different labels, beside thisīowmar 901B it was popular as Commodore C110 and Craig 4501, too. Its been 40 years since Intel shipped the worlds first single chip microprocessor. Keypad and a Bowmar-made Optostic LED display. Vintage Craig Electronic Pocket Calculator, Model 4501, Made by Bowmar for Craig (Bowmar Model 901B), Made in the USA, New Price Was 239.95 USD, Circa 1971. TMS0103, but four Texas Instruments display drivers, the original Klixon™
The featured Bowmar 901B manufactured in February 1972 reveals not only the It took less than one year before Texas Instruments announced theĪpril 1972 with a SRP of only $149.95, its delivery in June 1972 to firstĬustomers in the Neiman-Marcus and Sanger-Harris department stores in Dallas, TXĪnd its formally introduction on September 21, 1972. TMS0103 with a suggested retail price (SRP) of $240.00. of Acton, Massachusetts, USA launched the famous 901B "True-Pocket-Size" calculator based on Instruments announcing on Septemthe " calculator-on-a-chip", Bowmar/Ali Inc. Commercial LED (Light Emitting Diode) display in 1970 and Texas
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