Samsung NP-X1 User Manual download pdf (Page 179)

160 Users Manual

Glossary

AC adapter

The AC (or alternating current) adapter regulates current coming into your

computer from the wall outlet. The current at the wall outlet is alternating current

and needs to be changed by the adapter to DC (direct current) before your

computer can use it for power.

ACPI

ACPI (Advanced Configuration and Power Interface)- a method for describing

hardware interfaces in terms abstract enough to allow flexible and innovative

hardware implementations and concrete enough to allow shrink-wrap OS code to

use such hardware interfaces.

BIOS

BIOS stands for basic input/output system. The BIOS is software (often called

firmware) that is independent of any operating system. It enables the computer to

communicate with the screen, keyboard, and other peripheral devices without

using programs on the hard disk.

The BIOS on your computer is flash BIOS, which means that it has been recorded

on a flash memory chip that can be updated if needed.

Boot

To start your computer. A cold boot resets the entire computer and runs through

all computer self-tests. A warm boot clears out computer memory only.

Boot disk

A disk containing operating system programs required to start your computer. A

boot disk can be a floppy disk, hard drive, or compact disc.

Byte

The basic unit of measure for computer memory. A character—such as a letter of

the alphabet—uses one byte of memory. Computer memory is often measured in

kilobytes (1,024 bytes) or megabytes (1,048,576 bytes).

Each byte is made up of eight bits. For more information on bytes and bits, see an

introductory book on computers.

Cache memory

Cache is very fast, zero-wait-state memory located between the microprocessor

and main memory. Cache reduces the average time required by the

microprocessor to get the data it needs from the main memory by storing recently

accessed data in the cache.

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Samsung NP-X1 User Manual Page 179