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| There are 25 entries in the glossary. |
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| Portal | A virtual gateway between computer systems, or a website that provides links to lots of useful sites on a particular theme, eg shopping or news. |
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| POST | (Power On Self Test; pr. [post]) A routine PCs go through when first switched on, before loading the operating system, to make sure the hardware is working properly. |
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| Power-on password | A password which the computer will prompt you for whenever the computer is switched on, a good security measure provided you don\\\'t forget the password. Power-on passwords can usually only be bypassed by taking the computer to bits. |
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| Processor | The nerve centre of the computer : everything flows through it. Also called the CPU. The best known are Intel\\\'s Pentium and AMD\\\'s Athlon. The most important single specification on any PC is the speed of its processor, usually measured in megahertz (MHz), or gigahertz (GHz). |
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| Program | A program is essentially a list of instructions that tell a computer how to do something. Any word processor, spreadsheet, database, game or any other tool you may use on a computer is a program (often a group of programs). Also referred to as software. |
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