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DATAR, short for Digital Automated Tracking and Resolving, was a pioneering computerized battlefield information system. DATAR combined the data from all of the sensors in a naval task force into a single "overall view" that was then transmitted back to all of the ships and displayed on plan-position indicators similar to radar displays.
Logitech Cordless TrackMan Wheel trackball mouse The original version of the Kensington Expert Mouse can use a standard American pool ball as a trackball. [citation needed]A trackball is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes—like an upside-down ball mouse with an exposed protruding ball. [1]
The basic idea of the CDS was extremely influential in military circles and led to computerized versions in the form of DATAR, Naval Tactical Data System, and SAGE. The trackball (known as "ball tracker" at the time) was invented by Ralph Benjamin as part of his work for the CDS in 1946.
The Royal Canadian Navy began work on such a system under their DATAR project, which included the first working example of the trackball concept. Unfortunately their design used tubes, and the resulting machine was so large it took up almost all of the free space on the Bangor -class minesweeper it was installed on.
Although DATAR wasn't without its difficulties, Tom Cranston, Fred Longstaff and Taylor developed and built a Trackball as part of the display system. After DATAR funding ceased Arthur Porter left for an academic position, leaving Taylor the stressful job of finding work to keep their engineers usefully employed. [22]
Benjamin was born in Darmstadt, Germany.He attended boarding school in Switzerland from 1937, and was sent to England in 1939 as a refugee. He studied at Ellesmere College and at Imperial College London [1] where he graduated with a 1st class honours in Electronic Engineering.
Another early trackball was built by Kenyon Taylor, a British electrical engineer working in collaboration with Tom Cranston and Fred Longstaff. Taylor was part of the original Ferranti Canada, working on the Royal Canadian Navy's DATAR (Digital Automated Tracking and Resolving) system in 1952. [11] DATAR was similar in concept to Benjamin's ...
Trackball – first built for the DATAR computer (although the concept was first mentioned in a similar project in the United Kingdom). [22] Communications.
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