P
Parental Controls

A set of user controls in Windows Vista that lets parents monitor and control their children’s online activities.

path

The collection of folders and subfolders (listed in order of hierarchy) that hold a particular file.

PCB

See process control block

peripheral

A device connected to the computer that provides communication or auxiliary functions.

phishing

The act of tricking someone into giving up confidential information, typically by the use of fraudulent email messages or websites.

pixel

The individual picture elements that combine to create a video image.

pixel shader

A function on a graphics card that calculates visual effects on a per-pixel basis.

playlist

A list of individual songs, assembled from any album or artist.

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