Fujitsu C1410 User Manual download pdf (Page 87)

Glossary

I/O

Input/Output. Data entering and leaving your notebook

in electronic form.

I/O Port

The connector and associated control circuits for data

entering and leaving your notebook in electronic form.

IDE

Intelligent Drive Electronics. A type of control interface

for a hard drive which is inside the hard drive unit.

Infrared

Light just beyond the red portion of the visible light

spectrum which is invisible to humans.

Infrastructure

A name of a wireless LAN configuration. This type of

communication uses an access point.

Another type of communication is called AdHoc.

IP Address

An identifier for a computer or device on a TCP/IP

network. Networks using the TCP/IP protocol route

messages based on the IP address of the destination. The

format of an IP address is a 32-bit numeric address

written as four numbers separated by periods. Each

number can be zero to 255. For example, 1.160.10.240

could be an IP address.

Within an isolated network, you can assign IP addresses

at random as long as each one is unique. However,

connecting a private network to the Internet requires

using registered IP addresses (called Internet addresses)

to avoid duplicates.

The four numbers in an IP address are used in different

ways to identify a particular network and a host on that

network. Three regional Internet registries -- ARIN,

RIPE NCC and APNIC -- assign Internet addresses from

the following three classes.

Class A - supports 16 million hosts on each of 126

networks

Class B - supports 65,000 hosts on each of 16,000

networks

Class C - supports 254 hosts on each of 2 million

networks

The number of unassigned Internet addresses is running

out, so a new classless scheme called CIDR is gradually

replacing the system based on classes A, B, and C and is

tied to adoption of IPv6. (credit: webopedia.com)

An abbreviation for infrared.

IrDA

Infrared Data Association. An organization which

produces standards for communication using infrared

as the carrier.

IRQ

Interrupt Request. An acronym for the hardware signal

to the CPU that an external event has occurred which

needs to be processed.

Kilobyte.

LAN

Local Area Network. An interconnection of computers

and peripherals within a single limited geographic

location which can pass programs and data amongst

themselves.

LCD

Liquid Crystal Display. A type of display which makes

images by controlling the orientation of crystals in a

crystalline liquid.

Lithium ion Battery

A type of rechargeable battery which has a high power-

time life for its size and is not subject to the memory

effect as Nickel Cadmium batteries.

LPT Port

Line Printer Port. A way of referring to parallel interface

ports because historically line printers were the first and

latter the most common device connected to parallel

ports.

MAC Address

Media Access Control Address

A unique physical address of a network card. For

Ethernet, the first three bytes are used as the vendor

code, controlled and assigned by IEEE. The remaining

three bytes are controlled by each vendor (preventing

overlap), therefore, every Ethernet card is given a unique

physical address in the world, being assigned with a

different address from other cards. For Ethernet, frames

are sent and received based on this address.

Megabyte.

Megahertz

1,000,000 cycles per second.

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