Ad
related to: define light pen in computer
Search results
Results From The WOW.Com Content Network
A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's cathode-ray tube (CRT) display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy.
several styluses; (l to r) PalmPilot Professional, Fossil Wrist PDA, Nokia 770, Audiovox XV6600, HP Jornada 520, Sharp Zaurus 5500, Fujitsu Lifebook P-1032 In computing, a stylus (or stylus pen) is a small pen-shaped instrument whose tip position on a computer monitor can be detected.
A light pen is a computer input device used in conjunction with a computer's CRT display. It is used to select a displayed menu item. A light pen can also allow users draw on the screen with great positional accuracy. It consists of a photocell and an optical system placed in a small tube.
Pen computing refers to any computer user-interface using a pen or stylus and tablet, over input devices such as a keyboard or a mouse.. Historically, pen computing (defined as a computer system employing a user-interface using a pointing device plus handwriting recognition as the primary means for interactive user input) predates the use of a mouse and graphical display by at least two ...
A light pen is a device similar to a touch screen, but uses a special light-sensitive pen instead of the finger, which allows for more accurate screen input. As the tip of the light pen makes contact with the screen, it sends a signal back to the computer containing the coordinates of the pixels at that point.
A pointing device allows a user to input spatial data to a computer. It is commonly used as a simple and intuitive way to select items on a computer screen on a graphical user interface (GUI), either by moving a mouse pointer, or, in the case of a touch screen, by physically touching the item on screen. Common pointing devices include mice ...
A graphic tablet. A graphics tablet (also known as a digitizer, digital graphic tablet, pen tablet, drawing tablet, external drawing pad or digital art board) is a computer input device that enables a user to hand draw or paint images, animations and graphics, with a special pen-like stylus, similar to the way a person draws pictures with a pencil and paper by hand.
A light pen could be used to draw sketches on the computer using Ivan Sutherland's revolutionary Sketchpad software. [7] Using a light pen, Sketchpad allowed one to draw simple shapes on the computer screen, save them and even recall them later. The light pen itself had a small photoelectric cell in its tip.