Toshiba U500 PSU52C-00S003 Users Manual Canada; English - Page 205
American Standard Code for Information Interchange. ASCII code is a set, User's Manual, Glossary-3
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Glossary alternating current (AC): Electric current that reverses its direction of flow at regular intervals. analog signal: A signal whose characteristics such as amplitude and frequency vary in proportion to (are an analog of) the value to be transmitted. Voice communications are analog signals. application: A group of programs that together are used for a specific task such as accounting, financial planning, spreadsheets, word processing and games. ASCII: American Standard Code for Information Interchange. ASCII code is a set of 256 binary codes that represent the most commonly used letters, numbers, and symbols. B backup: A copy of a file, usually on a removable disk, kept in case the original file is lost or damaged. binary: The base two number system composed of zeros and ones (off or on), used by most digital computers. The right-most digit of a binary number has a value of 1, the next a value of 2, then 4, 8, 16, and so on. For example, the binary number 101 has a value of 5. See also ASCII. BIOS: Basic Input/Output System. The firmware that controls data flow within the computer. See also firmware. bit: Derived from "binary digit", the basic unit of information used by the computer. It is either zero or one. Eight bits is one byte. See also byte. Bluetooth: A short-range radio technology designed to simplify wireless communication among computers, communication devices and the Internet. board: A circuit board. An internal card containing electronic components, called chips, which perform a specific function or increase the capabilities of the system. boot: Short for bootstrap. A program that starts or restarts the computer. The program reads instructions from a storage device into the computer's memory. boot disk: See system disk. bootable disk: See system disk. bps: Bits per second. Typically used to describe the data transmission speed of a modem. buffer: The portion of the computer's memory where data is temporarily stored. Buffers often compensate for differences in the rate of flow from one device to another. User's Manual Glossary-