Fujitsu FPCM22911 User Guide - Page 100

Infrastructure, IP Address, Class C - supports 254 hosts on each of 2 million networks

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Infrastructure A name of a wireless LAN configuration. This type of communication uses an access point. Another type of communication is called Ad Hoc. 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. IRQ Interrupt Request. An acronym for the hardware signal to the CPU that an external event has occurred which needs to be processed. KB Kilobyte. One thousand bytes. 99 - Glossary

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99
- Glossary
Infrastructure
A name of a wireless LAN configuration. This type of communication uses an access point. Another
type of communication is called Ad Hoc.
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.
IRQ
Interrupt Request. An acronym for the hardware signal to the CPU that an external event has occurred
which needs to be processed.
KB
Kilobyte. One thousand bytes.