Glossary

Sony Notebook User Guide

 

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113

Term

Definition

 

 

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.

 

 

PC Card

A PCMCIA card. The term PC Card is more widely used than PCMCIA. See PCMCIA.

 

 

PCMCIA

PCMCIA (Personal Computer Memory Card International Association) is the name of the

 

group that produced the specification for the credit card-sized plug-in boards for laptop

 

computers. The cards used to be called PCMCIA cards, but as this was rather

 

unpronounceable, these cards are now termed PC cards. An example of a PC card is a credit

 

card-sized modem.

 

 

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.

 

 

Port replicator

An additional device that you can connect to your notebook. The port replicator contains

 

ports that enable you to connect additional peripherals (such as a printer or a monitor) to

 

your VAIO. A port replicator is similar to a docking station, but does not include additional

 

slots for adding expansion boards or storage devices.

 

 

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.

 

 

Product recovery CD-ROM

The product recovery CD-ROMs include the application recovery CD-ROM and the system

 

recovery CD-ROM(s)

 

 

PS/2

A type of mouse or keyboard port.