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     Glossary




Glossary P


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Partition

A logical section of a disk. Each partition normally has its own file system.

Partioning

Method for creating a logical file structure that the operating system can access. Method for dividing an area on the disc drive for use by more than one disc operating system, or for dividing large disc drives into areas which the file allocation table (FAT) can deal with when in use.

Partition Table

A 64-byte data structure that defines the way a PC's hard disk is divided into logical sectors known as partitions. The partition table describes to the operating system how the hard disk is divided. Each partition on a disk has a corresponding entry in the partition table. The partition table is always stored in the first physical sector of a disk drive.

Path

A location of a file. The path consists of directory or folder names, beginning with the highest-level directory or disk name and ending with the lowest-level directory name. A path can identify a drive (e.g. C:\), a folder (e.g. C:\Windows) , or a file (e.g. C:\Windows\win.exe).

Peripheral

Any part of a computer other than the CPU or working memory (RAM and ROM). For example, disks, keyboards, monitors, mice, printers, scanners, tape drives, microphones, speakers, and other such devices are peripherals.

Platter

A disk made of metal (or other rigid material) that is mounted inside a fixed disk drive. Most drives use more than one platter mounted on a single spindle (shaft) to provide more data storage surfaces in a smaller area.

Plug-and-Play (PNP)

A hardware and software specification developed by Intel that allows a PnP system and a PnP adapter to configure automatically. PnP cards generally have no switches or jumpers, but are configured via the PnP system's BIOS or with supplied software for non-PnP computers.

POST

Stands for power-on self test. Each time a PC initializes, the BIOS executes a series of tests collectively known as the POST. The test checks each of the primary areas of the system, including the motherboard, video system, drive system, and keyboard, and ensures that all components can be used safely. If a fault is detected, the POST reports it as an audible series of beeps or a hexadecimal code written to an I/O port.


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