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The Monroe EPIC was a programmable calculator that came on the market in the 1960s. It consisted of a large desktop unit which attached to a floor-standing logic tower and was capable of being programmed to perform many computer-like functions.
Friden made a calculator that also provided square roots, basically by doing division, but with added mechanism that automatically incremented the number in the keyboard in a systematic fashion. The last of the mechanical calculators were likely to have short-cut multiplication, and some ten-key, serial-entry types had decimal-point keys.
Some calculators that had been serviced had dials that were mispositioned by (probably) 3.6 degrees; the gears weren't quite meshed correctly when reassembled. 1960s SCM Marchant calculator. The calculator was very complicated compared to, for example the Friden STW, a machine notable for its relative internal simplicity.
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 ...
Smaller programmable model with programs up to 49 steps. Version HP-25C was first calculator with "continuous memory". HP-27S: 1988 The first HP pocket calculator to use algebraic notation only rather than RPN. It was a "do all" calculator that included algebraic solver like the HP-18C, statistical, probability and time/value of money ...
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 ...
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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 ...
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related to: old calculators from the 60sstaples.com has been visited by 100K+ users in the past month
1747 Olentangy River Rd, Columbus, OH · Directions · (614) 299-9425