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An optical mouse is a computer mouse which uses a miniature camera and digital image processing to detect movement relative to a surface. Variations of the optical mouse have largely replaced the older mechanical mouse and its need for frequent cleaning. The earliest optical mice detected movement on prepared surfaces, however they never gained ...
A computer mouse (plural mice, also mouses) [ nb 1 ] is a hand-held pointing device that detects two-dimensional motion relative to a surface. This motion is typically translated into the motion of the pointer (called a cursor) on a display, which allows a smooth control of the graphical user interface of a computer.
Combines optical sensor with an accelerometer, allowing the mouse to track speeds in excess of 500 inches per second, and more than 16G in acceleration. 108 g (3.8 oz) (without cable) 144 g (5.1 oz) (with cable)
PDP-11 CPU board. Computer hardware includes the physical parts of a computer, such as the central processing unit (CPU), random access memory (RAM), motherboard, computer data storage, graphics card, sound card, and computer case. It includes external devices such as a monitor, mouse, keyboard, and speakers. [ 1 ][ 2 ]
Desktop computer. A desktop computer system. It has a monitor, keyboard, mouse, speakers, and a computer tower. The computer tower contains the motherboard and processor. A computer lab with desktop PCs with flat-panel monitors. A desktop computer (often abbreviated desktop[1]) is a personal computer designed for regular use at a stationary ...
In computing, multi-touch is technology which enables a touchpad or touchscreen to recognize more than one [7] [8] or more than two [9] points of contact with the surface. Apple popularized the term "multi-touch" in 2007 with which it implemented additional functionality, such as pinch to zoom or to activate certain subroutines attached to predefined gestures.
Richard F. Lyon. Richard " Dick " Francis Lyon (born 1952) is an American inventor, scientist, and engineer. He is one of the two people who independently invented the first optical mouse devices in 1980. [1][2][3] He has worked in signal processing and was a co-founder of Foveon, Inc., a digital camera and image sensor company.
Speckle, speckle pattern, or speckle noise designates the granular structure observed in coherent light, resulting from random interference. Speckle patterns are used in a wide range of metrology techniques, as they generally allow high sensitivity and simple setups. They can also be a limiting factor in imaging systems, such as radar ...