Monday, January 26, 2004		ITerminology

Dead pixel: A pixel on an LCD monitor that remains unlit, or black, when it should be activated and displaying a color. Each pixel on an LCD screen is made from three separate sub pixels — one red, one green and one blue — that when combined form the colors that the users see on the monitor. A dead pixel occurs when the transistor that activates the amount of light that shows through all three subpixels malfunctions and results in a permanently black pixel. Dead pixels are rare and largely go unnoticed by the user.

WWW1: The www prefix (short for World Wide Web) that precedes URL addresses is an indication that the Web address exists on the vast network of the World Wide Web. Sometimes in a URL the "www" is followed by a number, such as "www1" or "www2." The number that follows "www" indicates that the data being retrieved by the Web browser is gathering the information from a different Web server than the one that serves the typical "www" address.

Hard error: An error occurrence in a computer system that is caused by the failure of a memory chip. Hard errors can appear like chip-level soft errors, but the difference is that the hard error is not rectified when the computer is rebooted. The solution to a hard error is to replace the memory chip or module entirely. Operating a system beyond the speed capacity of its memory and subjecting the system to charges of static electricity are two common causes of hard errors.