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Control key. In computing, a Control key Ctrl is a modifier key which, when pressed in conjunction with another key, performs a special operation (for example, Ctrl + C ). Similarly to the Shift key, the Control key rarely performs any function when pressed by itself. The Control key is located on or near the bottom left side of most keyboards ...
Window scrolling. The Scroll Lock key is meant to lock all scrolling techniques and is a vestige of the original IBM PC keyboard. In its original design, Scroll Lock was intended to modify the behavior of the arrow keys. When the Scroll Lock mode is on, the arrow keys scroll the contents of a text window instead of moving the cursor.
Mouse keys is a feature of some graphical user interfaces that uses the keyboard (especially numeric keypad) as a pointing device (usually replacing a mouse ). Its roots lie in the earliest days of visual editors when line and column navigation was controlled with arrow keys . Today, mouse keys usually refers to the numeric keypad layout ...
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Born. 1993 or 1994 (age 30–31) Yuma, Arizona, U.S. Known for. First human recipient of a Neuralink brain-computer interface implant. Noland Arbaugh (born 1993 or 1994) is an American quadriplegic known for being the first human recipient of Neuralink 's brain-computer interface (BCI) implant. [1] He gained attention for his use of the device ...
Data arrangement Text buffer. Each screen character is represented by two bytes aligned as a 16-bit word accessible by the CPU in a single operation. The lower (or character) byte is the actual code point for the current character set, and the higher (or attribute) byte is a bit field used to select various video attributes such as color, blinking, character set, and so forth.
In computer graphics programming, hit-testing ( hit detection, picking, or pick correlation [1]) is the process of determining whether a user-controlled cursor (such as a mouse cursor or touch-point on a touch-screen interface) intersects a given graphical object (such as a shape, line, or curve) drawn on the screen.
Computer cursor. An upward pointing hand is often used in the mouse cursor in graphical user interfaces (such as those in Adobe Acrobat and Photoshop) to indicate an object that can be manipulated. The first is believed to be the Xerox Star. Many web browsers use an upward pointing hand cursor to indicate a clickable hyperlink.