Search results
Results from the WOW.Com Content Network
Also available for the TI-59 and TI-58 was a thermal printer (the PC-100A, B, and C models); the calculator was mounted on top of the printer and locked in place with a key. The calculator can be programmed to request input from the user, and output results of calculations to the printer.
The four ICs of the QT-8D and QT-8B were also used as the basis of the Sharp EL-8, one of the first mass-produced hand-held electronic calculators, introduced in 1971. [1] Sharp also built OEM versions of the QT-8D for the Swedish office machine company Facit and its subsidiary Addo, which sold them as the Facit 1115 and the Addo-X 9354. These ...
The Sharp EL-8, also known as the ELSI-8, [1] was one of the earliest mass-produced hand-held electronic calculators [1] and the first hand-held calculator to be made by Sharp. Introduced around the start of 1971, [ note 1 ] it was based on Sharp's preceding QT-8D and QT-8B compact desktop calculators and used the same logic circuits, but it ...
The following table compares general and technical information for a selection of common and uncommon Texas Instruments graphing calculators. Many of the calculators in this list have region-specific models that are not individually listed here, such as the TI-84 Plus CE-T, a TI-84 Plus CE designed for non-French European markets.
The calculator was code-named Wizard, [4] which is the first known use of a code name for a calculator. It also contained an Easter egg that allowed users to access a not-especially accurate stopwatch mode. [5] [6] An accurate version of the stopwatch mode was officially featured in the 1975 successor of the HP-45, the HP-55.
HP 9805A, the least expensive model using the same chassis as the HP46 (scientific) and HP81 (business) pocket calculators. This was a Programmable Calculator and had plug-in personality modules. It was introduced in 1973. [7] HP 9815A/S, the HP 9815A was HP's third generation high end RPN desktop and was introduced in 1975. [8]
height: 0.7–1.4 inches (18–36 mm) HP-65 in original hard case with manuals, software "Standard Pac" of magnetic cards, soft leather case, and charger The HP-65 is the first magnetic card-programmable handheld calculator.
The pascaline (also known as the arithmetic machine or Pascal's calculator) is a mechanical calculator invented by Blaise Pascal in 1642. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father's work as the supervisor of taxes in Rouen , France. [ 2 ]