Archive for April, 2011
Definition of Trackball
Trackball, a noun, is a pointing device that consists of a ball resting on two rollers at right angles to each other, which translate the ball’s motion into vertical and horizontal movement on the screen. A trackball also typically has one or more buttons to initiate other actions. A trackball’s housing is stationary; its ball [...]
Share and Enjoy
Definition of Mouse
Mouse, a noun, is a common pointing device. The basic features of a mouse are a flat-bottomed casing designed to be gripped by one hand, one or more buttons on the top, a multidirectional detection device (usually a ball) on the bottom, and a cable connecting the mouse to the computer. By moving the mouse [...]
Share and Enjoy
Definition of Good Times Virus
Good Times virus, a noun, is a purported e-mail virus alluded to in a warning that has been propagated widely across the Internet, as well as by fax and standard mail. The letter claims that reading an e-mail message with the subject “Good Times” will cause damage to the user’s system. In fact, it is [...]
Share and Enjoy
Definition of Trojan Horse
Trojan horse, a noun, is a destructive program disguised as a game, utility, or application. When run, a Trojan horse does something harmful to the computer system while appearing to do something useful.
Share and Enjoy
Definition of Virus
Virus, a noun, is an intrusive program that infects computer files by inserting in those files copies of itself. The copies are usually executed when the file is loaded into memory, allowing the virus to infect still other files, and so on. Viruses often have damaging side effects—sometimes intentionally, sometimes not. For example, some viruses [...]
Share and Enjoy
