Glossary

Sony Notebook User Guide

 

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109

 

Term

Definition

 

 

 

i.LINK™

i.LINK™ is Sony’s version of the IEEE 1394 standard for high-speed digital serial interface.

 

 

The standard is regarded in the audio/video and IT industries as the most suitable interface

 

 

for connecting computers and digital audio/video devices (such as digital cameras etc.).

 

 

 

 

ISP

An ISP (Internet Service Provider) is a company which provides you with a user name,

 

 

password and telephone number in order to connect to the Internet.

 

 

 

 

L2 cache memory

Cache memory is RAM-like memory that enables quick access to data that has already been

 

 

read by the computer. L1 and L2 are levels of cache memory in a computer.

 

 

 

 

LAN

A LAN (Local Area Network) is a group of computers connected together within a limited

 

 

geographical area. It enables users to share devices (such as printers) and information using

 

 

one processor or server.

 

 

 

 

LCD

Short for Liquid Crystal Display. Flat notebook display technology using liquid crystals (and

 

 

light polarisation) to provide sharp, flicker-free images on a screen comprised of millions of

 

 

tiny cells. Colour can be produced by two basic techniques. Passive matrix is the less

 

 

expensive of the two technologies. The active matrix technology (or TFT) produces better

 

 

quality but is also more expensive.

 

 

 

 

LED

Short for Light-Emitting Diode. A semiconductor device that lights up when electricity passes

 

 

through it.

 

 

 

 

Lithium-ion battery

A lithium-ion battery uses lithium cobalt oxide and carbon as electrodes and ions move from

 

 

one electrode to the other during charge and discharge. Lithium-ion batteries are the first

 

 

choice for notebooks because of their light weight, high energy density and because they

 

 

have no memory effect. In addition they do not use heavy metals like lead, mercury or

 

 

cadmium.

 

 

 

 

MAPI

Short for Messaging Application Program Interface. A Microsoft Windows interface

 

 

enabling you to send e-mail messages. It allows e-mail access and distribution among

 

 

applications. MAPI-compatible applications include a Send Mail or Send in the File menu of

 

 

the application.