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e. The history of computing hardware covers the developments from early simple devices to aid calculation to modern day computers. The first aids to computation were purely mechanical devices which required the operator to set up the initial values of an elementary arithmetic operation, then manipulate the device to obtain the result.
In about 1970 HP co-founder Bill Hewlett challenged his co-workers to create a "shirt-pocket sized HP-9100".At the time, slide rules were the only practical portable devices for performing trigonometric and exponential functions, as existing pocket calculators could only perform addition, subtraction, multiplication, and division.
Programma P102. The Olivetti Programma 101, also known as Perottina or P101, is one of the first "all in one" commercial desktop programmable calculators, [ 1 ][ 2 ] although not the first. [ 3 ] Produced by Italian manufacturer Olivetti, based in Ivrea, Piedmont, and invented by the Italian engineer Pier Giorgio Perotto, the P101 used many ...
The HP-16C Computer Scientist is a programmable pocket calculator that was produced by Hewlett-Packard between 1982 and 1989. It was specifically designed for use by computer programmers, to assist in debugging. It is a member of the HP Voyager series of programmable calculators. It was the only programmer's calculator ever produced by HP ...
A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a desktop computer. Modern personal computers universally use switched-mode power supplies. Some power supplies have a manual switch for selecting input voltage, while others automatically adapt to the main voltage.
Headquarters. Albuquerque, New Mexico. , United States. Products. Altair 8800. Number of employees. 230 (1976) Micro Instrumentation and Telemetry Systems, Inc. (MITS), was an American electronics company founded in Albuquerque, New Mexico that began manufacturing electronic calculators in 1971 and personal computers in 1975.
Soviet computer software and hardware designs were often on par with Western ones, but the country's persistent inability to improve manufacturing quality meant that it could not make practical use of theoretical advances. [89] Quality control, in particular, was a major weakness of the Soviet computing industry. [90]
width: 3.2 inches (81 mm), height: 0.7–1.4 inches (18–36 mm) The HP-67 is a magnetic card-programmable handheld calculator, introduced by Hewlett-Packard in 1976 at an MSRP of $450. [1] A desktop version with built-in thermal printer was sold as the HP-97 at a price of $750. [2] Collectively, they are known as the HP-67/97.