Selasa, 08 Juni 2010

Who invented the computer mouse


Have you ever wondered who invented the computer mouse? The mouse is a pointing device that tracks its position on the desktop and uses this information to control the cursor on the screen. While mice are now common computer accessories, their acceptance has been slow progress.



The ancestors of the modern computer mouse
In the 1950s, researchers working for the Royal Canadian Navy uses a small ball bowling ball on the first track was established. The pointing device is part of a top secret project and has never been created patented.
In 1968 work Douglas Engelbart at Stanford Research Institute, has developed from a button mouse, which he calls an "XY position indicator for the display system. The first mouse was used in wood and two wheels to the positions of X and Y, which were translated into movement on a computer screen patent. Engelbart's invention in 1970 to monitor, but its patent has expired before the device popular.
In 1972, Bill has developed English, a colleague's Englbart, the mouse ball while working at Xerox PARC. English as a track ball mouse work on the back and came as standard equipment with Xerox 8010 Star Information System in 1981 distributed.
In 1984 the first Apple Computer Macintosh computer (Mac) were published. The GUI of the Mac, which borrows heavily from work done at Xerox, made full use of the mouse. The popularity of the Mac created the mouse as a pointing device for standard PCs.
What is a computer mouse today?
The ball mouse was popular in the 1980s and early 1990s. These older models had a small rubber ball in the basis that bread has awakened to the X and Y to be determined on a monitor, and they only had one button. There were two major problems in the design: first, early mouse balls swelled to heat or high humidity, so that the mouse unusable. Second, would the dirt on a desk and finally its way into the mouse and rubber wheels.
Developed in the 1990s, optical mice have been that a light sensor used to monitor the position of the device. Early optical mice, it will be printed with special marks with a grid. Technological progress has enables optical mouse on any surface as long as it is not transparent to be used.
Although the first two button mouse, later versions sometimes have three buttons. In 1997, the Microsoft IntelliMouse wheel that one item. With integrated support for key applications, the scroll wheel is a standard feature of the mouse for Windows computers.


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