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2. Expensive Desk Calculator - Wikipedia

   en.wikipedia.org/wiki/Expensive_Desk_Calculator

   Expensive Desk Calculator by Robert A. Wagner is thought to be computing's first interactive calculation program. [1] The software first ran on the TX-0 computer loaned to the Massachusetts Institute of Technology (MIT) by Lincoln Laboratory. It was ported to the PDP-1 donated to MIT in 1961 by Digital Equipment Corporation. [2]

3. TI-59 / TI-58 - Wikipedia

   en.wikipedia.org/wiki/TI-59_/_TI-58

   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).

4. Comparison of software calculators - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_software...

   Mac OS calculator: Proprietary: macOS: Double (64 bit) Yes Yes Yes GNOME Calculator: GPL-3.0-or-later: Linux, BSDs, macOS: Arbitrary decimal Yes Yes Yes KCalc: GPL-2.0-or-later: Linux, BSDs, macOS: Arbitrary decimal Yes Yes Yes Windows Calculator: MIT: Windows: ≥32 decimal Yes Yes Yes WRPN Calculator: Public domain: Windows, Linux, macOS ...

5. These Calculators Make Quick Work of Standard Math ... - AOL

   www.aol.com/best-calculators-students...

   The Best Calculators. Best Overall: Texas Instruments TI-84 Plus CE Graphing Calculator. ... The Do’s and Don’ts of Using Painter’s Tape. The Best Portable BBQ Grills for Cooking Anywhere.

6. Windows Calculator - Wikipedia

   en.wikipedia.org/wiki/Windows_Calculator

   A simple arithmetic calculator was first included with Windows 1.0. [5]In Windows 3.0, a scientific mode was added, which included exponents and roots, logarithms, factorial-based functions, trigonometry (supports radian, degree and gradians angles), base conversions (2, 8, 10, 16), logic operations, statistical functions such as single variable statistics and linear regression.

7. HP 9800 series - Wikipedia

   en.wikipedia.org/wiki/HP_9800_series

   HP 9815A. Chronologically, the models of the family were: HP 9810A, a keystroke programmable computer with magnetic cards and LED display, introduced in 1971, [1]; HP 9820A, introduced in 1972, was the first HP model that deals with algebraic input (not only RPN) [2] featured a high level language simpler than BASIC that was later named high performance language (HPL),

8. 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 ...

9. Singer System Ten - Wikipedia

   en.wikipedia.org/wiki/Singer_System_Ten

   IBM and NCR, then the world's largest computer companies, rejected the offer to bid, and so did some others. The only company to take up the challenge was Friden, an American company based in San Leandro, California which made desktop calculators and accounting machines based on punched paper tape. Singer accepted Friden's bid.