Toshiba Portege R500 PPR50C Users Manual Canada; English - Page 183
American National Standards Institute. An organization established, Microsoft Disk Operating System
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Glossary LED: light emitting diode LSI: large scale integration MB: megabyte MS-DOS: Microsoft Disk Operating System OCR: optical character recognition (reader) PCB: printed circuit board PCI: peripheral component interconnect RAM: random access memory RGB: red, green, and blue ROM: read only memory RTC: real time clock SCSI: small computer system interface SIO: serial input/output TFT: thin-film transistor UART: universal asynchronous receiver/transmitter USB: Universal Serial Bus UXGA: ultra extended graphics array VGA: video graphics array VRT: voltage reduction technology WXGA: wide extended graphics array XGA: extended graphics array A adaptor: A device that provides an interface between two dissimilar electronic devices. For example, the AC adaptor modifies the power from a wall outlet for use by the computer. This term also refers to the add-in circuit cards that control external devices, such as video monitors and magnetic tape devices. allocate: To assign a space or function for a specific task. alphanumeric: Keyboard characters including letters, numbers and other symbols, such as punctuation marks or mathematical symbols. 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. ANSI: American National Standards Institute. An organization established to adopt and define standards for a variety of technical disciplines. For example, ANSI defined the ASCII standard and other information processing requirements. antistatic: A material used to prevent the buildup of static electricity. User's Manual Glossary-2