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An early Xerox optical mouse chip, before the development of the inverted packaging design of Williams and Cherry. The first two optical mice, first demonstrated by two independent inventors in December 1980, had different basic designs: [1] [2] [3] One of these, invented by Steve Kirsch of MIT and Mouse Systems Corporation, [4] [5] used an infrared LED and a four-quadrant infrared sensor to ...
A laser mouse is an optical mouse that uses coherent (laser) light. The earliest optical mice detected movement on pre-printed mousepad surfaces, whereas the modern LED optical mouse works on most opaque diffuse surfaces; it is usually unable to detect movement on specular surfaces like polished stone.
He is a named inventor on over 100 patents including the modern optical computer mouse, [1] and his works have been featured on over 20 journal and magazine covers. At Hewlett Packard he pioneered instrumentation for testing computer circuits including the first Logic Probe, [2] [3] Logic Clip, [4] [5] Logic Pulser, [6] [7] [8] and HP's first ...
A pointing stick on a mid-1990s-era Toshiba laptop. The two buttons below the keyboard act as a computer mouse: the top button is used for left-clicking while the bottom button is used for right-clicking. Optical pointing sticks are also used on some Ultrabook tablet hybrids, such as the Sony Duo 11, ThinkPad Tablet and Samsung Ativ Q.
9 Optical disc drives (ODDs) 10 Fans. 11 Fan controllers. 12 Computer cooling systems. Toggle Computer cooling systems subsection. ... 19 Mouse. 20 Joysticks. 21 ...
Laptops contain the keyboard, display, and processor in one case. The monitor in the folding upper cover of the case can be closed for transportation, to protect the screen and keyboard. Instead of a mouse, laptops may have a touchpad or pointing stick. Tablets are portable computers that use a touch screen as the primary input device. Tablets ...
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Paul, Matthias R. (2002-04-06). "Re: [fd-dev] ANNOUNCE: CuteMouse 2.0 alpha 1".freedos-dev.Archived from the original on 2020-02-07 […] The original Mouse Systems Bus Mouse is a normal serial 8250 compatible mouse using the normal Mouse Systems serial protocol, however the base address of this 8250 type chip is not one of the usual COM port addresses 3F8h, 2F8h, 3E8h, or 2E8h, but either ...