Dell Inspiron 546ST Dell™ Technology Guide - Page 353
flowing at 1 volt., watt-hour - A unit of measure commonly used to indicate the approximate
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video memory - Memory that consists of memory chips dedicated to video functions. Video memory is usually faster than system memory. The amount of video memory installed primarily influences the number of colors that a program can display. video mode - A mode that describes how text and graphics are displayed on a monitor. Graphics-based software, such as Windows operating systems, displays in video modes that can be defined as x horizontal pixels by y vertical pixels by z colors. Character-based software, such as text editors, displays in video modes that can be defined as x columns by y rows of characters. video resolution - See resolution. virus - A program that is designed to inconvenience you or to destroy data stored on your computer. A virus program moves from one computer to another through an infected disk, software downloaded from the Internet, or e-mail attachments. When an infected program starts, its embedded virus also starts. V - volt - The measurement of electric potential or electromotive force. One V appears across a resistance of 1 ohm when a current of 1 ampere flows through that resistance. W W - watt - The measurement of electrical power. One W is 1 ampere of current flowing at 1 volt. WHr - watt-hour - A unit of measure commonly used to indicate the approximate capacity of a battery. For example, a 66-WHr battery can supply 66 W of power for 1 hour or 33 W for 2 hours. wallpaper - The background pattern or picture on the Windows desktop. Change your wallpaper through the Windows Control Panel. You can also scan in your favorite picture and make it wallpaper. WLAN - wireless local area network. A series of interconnected computers that communicate with each other over the air waves using access points or wireless routers to provide Internet access. write-protected - Files or media that cannot be changed. Use write-protection when you want to protect data from being changed or destroyed. WWAN - wireless wide area network. A wireless high-speed data network using cellular technology and covering a much larger geographic area than WLAN. WXGA - wide-aspect extended graphics array - A video standard for video cards and controllers that supports resolutions up to 1280 x 800. 353