Toshiba Satellite PSMDCC Users Manual Canada; English - Page 212
online state, operating system, output, parallel, parity, password, PC card, peripheral, pixel
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Glossary O: OCR: Optical Character Recognition (reader). A technique or device that uses laser or visible light to identify characters and input them into a storage device. online state: A functional state of a peripheral device when it is ready to receive or transmit data. operating system: A group of programs that controls the basic operation of a computer. Operating system functions include interpreting programs, creating data files, and controlling the transmission and receipt (input/output) of data to and from memory and peripheral device. output: The results of a computer operation. Output commonly indicates data. 1) printed on paper, 2) displayed at a terminal, 3) sent through the serial port of internal modem, or 4) stored on some magnetic media. P: 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. Compare serial. parity: 1) The symmetrical relationship between two parameter values (integers) both of which are either on or off; odd or even; 0 or 1. 2) In serial communications, an error detection bit that is added to a group of data bits making the sum of the bits even or odd. Parity can be set to none, odd, or even. password: A unique string of characters used to identify a specific user. The computer provides various levels of password protection such as user and supervisor. 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. PCI: Peripheral Component Interconnect. An industry standard 32-bit bus. peripheral: Any device, such as a printer or joystick, that is attached to the computer and controlled by the computer's CPU. pixel: A picture element. The smallest dot that can be made on a display or printer. Also called a pel. plug and play: A capability with Windows that enables the system to automatically recognize connections of external devices and make the necessary configurations in the computer. pointing device: Any device, such as the TouchPad or a mouse, that enables you to move the cursor on the screen. port: The electrical connection through which the computer sends and receives data to and from devices or other computers. Glossary-10 User's Manual