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non-system disk — A disk for storing programs and data that cannot be used to start the computer. Compare system disk. online — Available through the computer. Online may refer to information being read from your own computer’s hard disk, such as online documentation or online help, or to information coming from another company on a company network or the Internet. operating system — A set of programs that controls how the computer works. Examples of operating systems are Windows® 98 Second Edition and Windows® XP Professional. palette — See color palette. parallel — Processes that occur simultaneously. In communications, it means the transmission of more than one bit of information at a time. On your computer, the parallel port provides a parallel communications interface between the computer and an appropriate device. Most modern printers are parallel. Compare serial. password — A unique string of characters entered by a user to verify his or her identity to the computer or the network. PC Card — A credit-card-sized expansion card designed to increase the capabilities of notebook computers. PC Cards provide functions such as modem, fax/modem, hard disk drive, network adapter, sound card, or SCSI adapter. Glossary Glossary peripheral — Any device, such as a printer or joystick, that is attached to the computer and controlled by the computer’s CPU. pixel — Short for “picture element.” The smallest dot that can be produced on a screen or printer. Plug and Play — Generally, refers to the computer’s ability to automatically configure itself to work with peripheral devices. When capitalized, refers to a standard that, when followed by a device manufacturer, allows a PC to configure itself automatically to work with the device. pointing device — Any device, such as the AccuPoint or a mouse, that enables you to move the cursor on the screen. port — A socket on the computer where you plug in a cable for connection to a network or a peripheral device. processor — See central processing unit (CPU). program — A set of instructions that can be executed by a computer. The general classes of programs (also called software) are operating system, application, and utility. See also operating system, application, utility. properties — The attributes of an object or device. For example, the properties of a file include the file’s type, size, and creation date. RAM (random access memory) — Volatile memory that can be R written to as well as read. By volatile, we mean that information in RAM is lost when you turn off your computer. This type of memory is used for your computer’s main memory. See also memory. Compare ROM. random access memory — See RAM. read-only memory — See ROM. reboot — See boot, restart. removable disk — A disk that can be removed from a disk drive. A diskette is one example of a removable disk. Glossary Glossary resolution — A measure of the sharpness of the images that can be produced by a printer or displayed on a screen. For a printer, resolution is expressed in dots per inch (dpi). For a screen, it is expressed as the number of pixels available horizontally and vertically. restart — Synonymous with reboot. To reset the computer by reloading the operating system without turning the computer off. See also boot. RJ11 — A modular connector used on most U.S. telephone systems and direct-connect modems. The RJ11 connector is a 6-wire connector. ROM (read-only memory) — Non-volatile memory that can be read but not written to. By non-volatile, we mean that information in ROM remains whether or not the computer is receiving power. This type of memory is used to store your computer’s BIOS, which is essential instructions the computer reads when you start it up. See also BIOS, memory. Compare RAM. select — To highlight or otherwise specify text, data, or graphics with the S intent to perform some operation on it. serial — Processes that occur one at a time. In communications, it means the transmission of one bit at a time sequentially over a single channel. On your computer, the serial port provides a serial interface between the computer and an appropriate device. Compare parallel. shortcut — See keyboard shortcut. software — See program. Compare hardware. Standby — A feature of some Windows® operating systems that allows you to turn off the computer without exiting your open applications and to continue from where you left off when you turn the computer on again. Suspend — A feature of some Windows® operating systems that allows you to turn off the computer without exiting your open applications and to continue from where you left off when you turn the computer on again. 236 system disk — A diskette that contains the operating system files needed to start the computer. Any diskette can be formatted as a system disk. A system disk is also called a “bootable disk” or a “startup disk.” Compare non-system disk. system prompt — The symbol (in MS-DOS®, generally a drive letter followed by a “greater than” sign) indic...

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