First we have to understand the basics of mouse .
A computer mouse is a pointing device(hand control) that detects two-dimensional motion relative to a surface. This motion is typically translated into the motion of a pointer on a display, which allows a smooth control of the graphical user interface.
Physically, a mouse consists of an object held in one’s hand, with one or more buttons. Mice often also feature other elements, such as touch surfaces and "wheels", which enable additional control and dimensional input.
The earliest known publication of the term mouse as a computer pointing device is in Bill English’s 1965 publication "Computer-Aided Display Control".[1]
Both the online Oxford Dictionaries and Merriam-Webster entries for mouse state the plural for the small rodent is mice, while the plural for the small computer connected device is either mice or mouses. The Oxford dictionary’s usage section states that the more common plural is mice and claims the first recorded use of the plural is mice2. According to the fifth edition of The American Heritage Dictionary of the English Language the plural can be either "mice" or "mouses".[4]
The trackball, a related pointing device, was invented in 1941 by Ralph Benjamin as part of a World War II-era fire-control radar plotting system called Comprehensive Display System(CDS). Benjamin was then working for the British Royal Navy Scientific Service. Benjamin’s project used analog computers to calculate the future position of target aircraft based on several initial input points provided by a user with a joystick. Benjamin felt that a more elegant input device was needed and invented what they called a "roller ball" for this purpose.[5][6]
The device was patented in 1947, [6] but only a prototype using a metal ball rolling on two rubber-coated wheels was ever built, and the device was kept as a military secret.[5]
Another early trackball was built by British electrical engineer Kenyon Taylor 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.[7]
DATAR was similar in concept to Benjamin’s display. The trackball used four disks to pick up motion, two each for the X and Y directions. Several rollers provided mechanical support. When the ball was rolled, the pickup discs spun and contacts on their outer rim made periodic contact with wires, producing pulses of output with each movement of the ball. By counting the pulses, the physical movement of the ball could be determined. A digital computer calculated the tracks, and sent the resulting data to other ships in a task force using pulse-code modulation radio signals. This trackball used a standard Canadian five-pin bowling ball. It was not patented, as it was a secret military project as well.[8][9]
On 2 October 1968, a mouse device named Rollkugel(German for "rolling ball") was released that had been developed and published by the German company Telefunken. As the name suggests and unlike Engelbart’s mouse, the Telefunken model already had a ball. It was based on an earlier trackball-like device(also named Rollkugel) that was embedded into radar flight control desks. This had been developed around 1965 by a team led by Rainer Mallebrein at Telefunken Konstanz for the German Bundesanstalt für Flugsicherung as part of their TR 86 process computer system with its SIG 100-86[10] vector graphics terminal
Around 1981 Xerox included mice with its Xerox Star, based on the mouse used in the 1970s on the Alto computer at Xerox PARC. Sun Microsystems, Symbolics, Lisp Machines Inc., and Tektronix also shipped workstations with mice, starting in about 1981. Later, inspired by the Star, Apple Computer released the Apple Lisa, which also used a mouse. However, none of these products achieved large-scale success. Only with the release of the Apple Macintosh in 1984 did the mouse see widespread use.[70]
The Macintosh design, [71] commercially successful and technically influential, led many other vendors to begin producing mice or including them with their other computer products(by 1986, Atari ST, Amiga, Windows 1.0, GEOS for the Commodore 64, and the Apple IIGS).[72]
The widespread adoption of graphical user interfaces in the software of the 1980s and 1990s made mice all but indispensable for controlling computers. In November 2008, Logitech built their billionth mouse.[73]
Some systems allow two or more mice to be used at once as input devices. 16-bit era home computers such as the Amiga used this to allow computer games with two players interacting on the same computer(Lemmings and The Settlers for example). The same idea is sometimes used in collaborative software, e.g. to simulate a whiteboard that multiple users can draw on without passing a single mouse around.
Microsoft Windows, since Windows 98, has supported multiple simultaneous pointing devices. Because Windows only provides a single screen cursor, using more than one device at the same time requires cooperation of users or applications designed for multiple input devices.
Multiple mice are often used in multi-user gaming in addition to specially designed devices that provide several input interfaces.
Windows also has full support for multiple input/mouse configurations for multi-user environments.
Starting with Windows XP, Microsoft introduced a SDK for developing applications that allow multiple input devices to be used at the same time with independent cursors and independent input points.[66]
The introduction of Vista and Microsoft Surface(now known as Microsoft PixelSense) introduced a new set of input APIs that were adopted into Windows 7, allowing for 50 points/cursors, all controlled by independent users. The new input points provide traditional mouse input; however, are designed for more advanced input technology like touch and image. They inherently offer 3D coordinates along with pressure, size, tilt, angle, mask, and even an image bitmap to see and recognize the input point/object on the screen.
As of 2009, Linux distributions and other operating systems that use X.Org, such as OpenSolaris and FreeBSD, support 255 cursors/input points through Multi-Pointer X. However, currently no window managers support Multi-Pointer X leaving it relegated to custom software usage.
There have also been propositions of having a single operator use two mice simultaneously as a more sophisticated means of controlling various graphics and multimedia applications.[67]
Wireless is way better than wired.
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