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The cursor for the Windows Command Prompt (appearing as an underscore at the end of the line). In most command-line interfaces or text editors, the text cursor, also known as a caret, [4] is an underscore, a solid rectangle, or a vertical line, which may be flashing or steady, indicating where text will be placed when entered (the insertion point).
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 ...
This device is very similar to the conventional mouse but uses visible or infrared light instead of a roller-ball to detect the changes in position. [8] Additionally there is the mini-mouse , which is a small egg-sized mouse for use with laptop computers ; usually small enough for use on a free area of the laptop body itself, it is typically ...
To put it simply, an indicator light just reflects the status of a device, and that varies from product to product. For example, an indicator light could show that a device is charging or plugged ...
A computer mouse with the most common features: two buttons (left and right) and a scroll wheel (which can also function as a button when pressed inwards) A typical wireless computer mouse. A computer mouse (plural mice, also mouses) [nb 1] is a hand-held pointing device that detects two-dimensional motion relative to a surface
There are two uses for the wait cursor: short term and long term. The wait cursor is a shared resource in the system across applications and windows. By default, when the mouse cursor is in a window, the cursor shown is controlled by the window's registered window class and handling of WM_SETCURSOR. Different scenarios can be used instead. [2]
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An object in this state is said to be invisible (literally, "not visible"). The phenomenon is studied by physics and perceptual psychology . Since objects can be seen by light from a source reflecting off their surfaces and hitting the viewer's eyes , the most natural form of invisibility (whether real or fictional) is an object that neither ...