Dell GX240 User's Guide - Page 289

oz Ounce. A measurement of weight that equals 1/16 of a lb. Parallel Port An I/O port on your computer that transfers data eight bits at a time. It uses a 25-pin, female subminiature-D connector, typically to connect a printer. Also referred to as an LPT port. PBX Private branch exchange. A telephone system owned and operated by a private organization rather than the telephone company. This telephone system switches calls between users in the organization on internal lines while allowing users to share a certain number of external phone lines. The main purpose of a PBX is to save the cost of requiring a separate telephone line for each user. PC Personal computer. Commonly used to describe an IBM-compatible computer, as opposed to an Apple Macintosh computer. PCI Peripheral Component Interconnect. A standard for expansion cards developed by Intel Corporation. PCI is a local bus that supports 32- and 64-bit data paths, providing a high-speed data path between the microprocessor and devices such as video, drives, network, and so on. PCI devices are PnPcompliant. PET Platform event trap. A platform event is an alarm or specified condition that originates directly from a computer's BIOS or hardware components such as the microprocessor or a chip. The event occurs independently of the OS or system management software and hardware. The platform event trap is a format used for communicating a platform event in an SNMP environment. PGA Pin grid array. A type of socket for a computer chip. The PGA socket has all its pins lined up in even rows, as opposed to the SPGA socket, which has its rows staggered. Pipeline Processing A method of processing in which a task is performed in stages: the output of one stage is input to the next stage.This method speeds up processing by allowing several parts of multiple tasks to be run simultaneously. 37