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- pin feed
Pin feed, also known as tractor feed, is a mechanism for advancing paper by the use of perforations down the side of the paper and a toothed wheel (a sprocket). 
- ping
Packet internet groper (PING) is a program which checks whether a computer with a particular address is attached to the internet. - pirate
Someone who steals software by illegally copying it, rather than purchasing it. - pitch
The number of characters in an inch, which varies for different fonts. - pixel
The display on a monitor is made up of a collection of dots called pixels. For monochrome screens, a pixel contains one dot. For colour displays, a pixel contains three dots (red, green, and blue). It is usually rectangular or square and is the smallest element which can be displayed. Each pixel will be a single colour intensity and saturation. Pixel is a contraction of - pixelation
Pixilation is apparent in a low resolution image, or an image which has been magnified too much, such that the individual squares, dots or pixels can be seen. The lines and shapes of an image appear jagged or "pixelated." - plasma screen
Technology used to develop flat, very thin, TV and video display screens. They do not have the same size limitations of traditional LCD displays. - platform
A platform is a particular combination of hardware and operating system. - play
To start a multimedia file. - plotter
An output device specifically designed for producing drawings, using one or more pens. Often used by engineers or architects. - plug-in
A small program that adds functionality to web browsers, e.g. to display different file types such as Flash animations, PDF documents and audio files. Plug-ins can be downloaded from the web. - podcasting
A method of publishing audio files to the internet, allowing users to subscribe to a feed and receive updates automatically. - point of presence (PoP)
An access point to an internet service provider - point size
The maximum height of an individual character in a line of text. This is a traditional printer - point-to-point protocol (PPP)
PPP defines communication between two computers connected directly. It is commonly used between individual users and their internet service provider when using a telephone line. The internet service provider will access the internet on the user - pointer
The address or reference of a data item which allows it to be retrieved without further searching. For example, a database, which stores information about students, may use pointers to identify students in a particular class. It may use one pointer to locate the first student and further pointers between the students. In this way, to find the students in a class, the pointers allow the next student in the class to be accessed without searching other parts of the database. Pointers allow fast access to data because little searching is required. When used on data stored in the computer - pointer
The pointer, also known as a mouse pointer, is an icon (sometimes in the form of an arrow) on the screen. It moves around the screen in response to the movements of a mouse (or other similar device), or the use of keys. The pointer often changes its shape depending on its position on the screen, or the situation in an application. When the pointer indicates a position in text it is usually called the cursor. - poll
Used on websites and bulletin boards to ask users to vote or give information. There is usually only a limited number of questions, and users vote by selecting an option. - pop
In a stack, pop is a term used for taking an item from the stack. Also called pull. - pop-up
A small box with information, e.g. help, or an advert, which appears on the screen over the current window.
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