Introduccion a La Computacion. Glosario. Peter Norton

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Glossary
Numerals
10Base-T See Ethernet. 100Base-T See Fast Ethernet. 3-D modeling software Graphics software used to create electronic models of three-dimensional objects. 3GL 4GL 5GL See third-generation language. See fourth-generation language. See fifth-generation language. Advanced Micro Devices (AMD) A chip manufacturer that makesprocessors for PC-compatible computers. adware See spyware. AGP See Accelerated Graphics Port. algorithm A set of ordered steps or procedures necessary to solve a problem. all-in-one peripheral A device that combines the functions of printing, scanning, copying, and faxing. All-in-one peripherals can be based on either laser or ink jet printing technology and may operate in black and white, color,or both. alphanumeric field See text field. alphanumeric keys On a computer keyboard, the keys that include the letters of the alphabet, numerals, and commonly used symbols. ALU See arithmetic logic unit. always-on connection An Internet connection that is always active, as long as the computer is running. Cable modem and DSL connections are examples of always-on connections. AMD See Advanced MicroDevices. American Standard Code for Information Interchange An eight-bit binary code developed by the American National Standards Institute (ANSI) to represent symbolic, numeric, and alphanumeric characters. The ASCII character set is the most commonly used character set in PCs. anonymous FTP archive An FTP site with files available to the general public. The user types the word “anonymous” asthe account name in order to access the files. anti-adware utility See anti-spyware utility. antiglare screen A device that fits over a computer monitor and reduces glare from light reflecting off the screen. anti-spyware utility A program that can locate and remove spyware programs from a user’s computer. Some anti-spyware utilities can “immunize” a computer against known types of spyware, toprevent them from infecting the system. antivirus utility A program that scans a computer’s disks and memory for viruses; when it detects viruses, it removes them. Some antivirus programs can help the user recover data and program files that have been damaged by a virus and can actively scan files as they are being copied from a disk or downloaded from the Internet. Apache HTTP Server A Web serverproduct developed by the Apache Group. A robust and commercial-grade Web server that is maintained and improved upon as free, open-source software, Apache is the most popular Web server and runs on UNIX, Linux, and Windows servers. APIPA See automatic private IP address. applet A small program that can be run from within a Web page. Many Web-based applets are written in the Java programming language.802.11b A wireless networking standard that describes specifications for data transmission speeds up to 11 Mbps. 802.11g A wireless networking standard that describes specifications for data transmission speeds of 20 Mbps and higher.

A
Accelerated Graphics Port (AGP) bus A bus standard that incorporates a special architecture that allows the video card to access the system’s RAM directly,greatly speeding up graphics performance. Most new computers feature AGP graphics capabilities in addition to a PCI system bus and an expansion bus. acceptance testing Testing performed during the development phase of the systems development life cycle. In acceptance testing, end users work with the installed system to ensure that it meets their criteria. Access A database management program.activate (1) To initiate a command or load a program into memory and begin using it. (2) To choose; for example, you can activate a resource by choosing its icon, toolbar button, or filename. active matrix LCD A liquid crystal display (LCD) technology that assigns a transistor to each pixel in a flat-panel monitor, improving display quality and eliminating the “submarining” effect produced by some...