Glossary
Sony VAIO Desktop User Guide
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Term | Definition |
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Operating system | The operating system is software that manages all the other programs in a computer. It |
| defines how the computer reads and writes information to its disks (and other hardware). |
| Windows 2000, Windows Millennium Edition, Windows XP Professional and Windows XP |
| Home Edition are examples of operating systems found on VAIOs. |
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Partition | A partition is a logical division of a computer’s hard disk. A |
| typically contain C: and D: drives. Partitioning is particularly useful if you run more than one |
| operating system or to clearly separate your data files from your installed software. |
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PBX | A PBX (Private Branch Exchange) is a private telephone network within an enterprise. Under |
| this system, the calls between the enterprise members are local and the phone numbers are |
| made up of 3 or 4 digits. Companies generally choose this phone system for internal |
| communication because it is less expensive than the regular network. The users can still |
| share a number of outside lines for making calls external to the PBX. |
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PC Card | A PCMCIA card. The term PC Card is more widely used than PCMCIA. See PCMCIA. |
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Pixel | A pixel (Picture Element) is a part of your screen. Your screen is made up of thousands of |
| pixels, enabling you to see colours and pictures on it. The more pixels, the higher the |
| resolution and the better the image quality. |
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Processor | The processor is the brains of the computer; it processes the instructions of your system’s |
| programs. The processor is also known as the CPU or microprocessor and can be found on |
| the motherboard (see this word) of your computer. |
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PS/2 | A type of mouse or keyboard port, stands for Personal System 2. |
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PSTN | PSTN (Public Switched Telephone Network) refers to the plain old telephone service, the |
| national telecommunication networks implementing voice transmission by using analog |
| signals. |
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