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  2. Programmable calculator - Wikipedia

    en.wikipedia.org/wiki/Programmable_calculator

    Also commonly available from many companies are small printers made specifically for calculators which tend to use cash register tape paper, ports and cables for connecting the calculators to a computer and/or another calculator, cassette recorders for recording programs and data, overhead projector displays, and connectors for auxiliary ...

  3. HP 35s - Wikipedia

    en.wikipedia.org/wiki/HP_35s

    The HP 35s (F2215A) is a Hewlett-Packard non-graphing programmable scientific calculator. Although it is a successor to the HP 33s, it was introduced to commemorate the 35th anniversary of the HP-35, Hewlett-Packard's first pocket calculator (and the world's first pocket scientific calculator). HP also released a limited production anniversary ...

  4. Adding machine - Wikipedia

    en.wikipedia.org/wiki/Adding_machine

    The machine cycled once. To see the total the user was required to press a Total key and the machine would print the result on a paper tape, release the locked down keys, reset the adding mechanism to zero and tabulate it back to its home position. Modern adding machines are like simple calculators. They often have a different input system, though.

  5. Friden, Inc. - Wikipedia

    en.wikipedia.org/wiki/Friden,_Inc.

    Friden Calculator Friden Flexowriter. In 1957, Friden purchased the Commercial Controls Corporation of Rochester, New York.This gave them the Flexowriter teleprinter, an electric typewriter capable of being used as part of unit record equipment developed in World War II for the Department of the Navy to automatically type "regret to inform you" letters to the survivors of fallen servicemen ...

  6. HP-41C - Wikipedia

    en.wikipedia.org/wiki/HP-41C

    The data could not be access directly, but it was possible to transfer data to and from main memory. To the calculator (and the user), data located in the extended memory looked like files on a modern hard disk do for a PC (user). The final HP-41 model, the HP-41CX, included extended memory, a built-in time module, and extended functions. It ...

  7. Monroe Systems for Business - Wikipedia

    en.wikipedia.org/wiki/Monroe_Systems_for_Business

    Monroe Systems for Business is a provider of electric calculators, printers, and office accessories such as paper shredders to business clients. [1] Originally known as the Monroe Calculating Machine Company, it was founded in 1912 by Jay Randolph Monroe as a maker of adding machines and calculators based on a machine designed by Frank Stephen Baldwin.

  8. Staples Inc. - Wikipedia

    en.wikipedia.org/wiki/Staples_Inc.

    Staples's logo from 1988 to 2019. Staples Inc. is an American office supply retail company headquartered in Framingham, Massachusetts. Founded by Leo Kahn and Thomas G. Stemberg, the company opened its first store in Brighton, Massachusetts on May 1, 1986. [5]

  9. Calculator - Wikipedia

    en.wikipedia.org/wiki/Calculator

    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 ...

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