How can we help?

You can also find more resources in our Help Center.

99 terms

ITGS Chapter 4 - Networks

Key terms for the ITGS topic 'Networks'. These relate to chapter 4 of the textbook (www.itgstextbook.com).
STUDY
PLAY
3G
System to allow Internet access using mobile phone networks.
4G
System to allow Internet access using mobile phone networks.
application server
Computer that stores application software for clients on a network.
asynchronous
Data transfer method in which the sender and receiver are not synchronised.
audit trails
Record of all changes and actions performed with a system, for security purposes.
authentication server
Computer that checks usernames and passwords when a user tries to log in.
authorised access
User who has permission to use a system.
backbone
High speed connections that connect main Internet sites.
bandwidth
Measure of a network's speed.
bits per second
Unit for measuring the speed of data transfer over a network connection.
blog
Web page where entries are stored chronologically, like a diary or journal.
Bluetooth
Short range, low bandwidth wireless technology often used for mobile phone headsets or earphones.
bps
Unit for measuring the speed of data transfer over a network connection.
cache
Storage area for frequently used information, to speed up access.
client computer
Computer on a network that uses services provided by a server.
client-server
Network system that uses servers to store data centrally and client computers to access them.
database server
Computer on a network that stores data for other users to access.
DHCP
System that automatically assigns IP addresses to computers on a network.
dialup
Internet access that connects using a telephone line and a MODEM.
DNS
System for translating domain names into IP addresses.
Domain Name System
System for translating domain names into IP addresses.
domain names
Human readable names given to web sites, such as www.itgstextbook.com
download
To transfer data from a server to a client computer.
DSL / cable
Common type of broadband Internet connection.
Dynamic Host Control Protocol
System that automatically assigns IP addresses to computers on a network.
email server
Computer on a network that stores email for other users to access.
ethernet
Type of wired network connection commonly used on LANs.
fibre optic
Types of network connection that offers extremely high speed transfers.
file server
Computer on a network that stores files for other users to access.
File Transfer Protocol
System for transferring files over the Internet, often used for uploading web sites.
firewall
Software or hardware used to control data entering and leaving a network.
FTP
System for transferring files over the Internet, often used for uploading web sites.
gateway
Computer which acts as a bridge between a local area network and the Internet.
Gbps
Gigabits per second. Measure of network bandwidth.
hardware address
Unique address embedded in network connected devices.
home network
Small local computer network used in homes.
host
Computer on a network that provides services or performs work for others.
HTTP
HyperText Transfer Protocol. The standard protocol of the world wide web.
HTTPS
Secure version of HTTP which offers encrypted communication.
hub
Hardware device for connecting several computers on a network.
Internet Protocol
Standard protocol used on many LANs and on the Internet. See TCP.
Internet Service Provider
Company that provides Internet access to homes and businesses.
IP address
Unique address assigned to every computer on a network.
ISP
Company that provides Internet access to homes and businesses.
Kbps
Kilobits per second. Measure of network bandwidth.
LAN
Computer network in a small area such as an office building.
Local Area Network
Computer network in a small area such as an office building.
log file
Chronological record of events, used for reporting purposes and audit trails.
login
Process of authenticating oneself before using a computer system.
MAC address
Unique address embedded in network connected devices.
MAN
Computer network over a large area such as a city.
mbps
Megabits per second. Measure of network bandwidth.
Metropolitan Area Network.
Computer network over a large area such as a city.
microblog
Blog-like system which limited post length, such as Twitter.
MODEM
Device for connecting a computer to a telephone line, used in dialup connections.
narrowband
Low speed network connection.
network administrator
Individual responsible for maintaining and running a network.
P2P
Network in which all computers are equal and there are no centralised servers.
PAN
Short range network between a computer and a mobile phone or similar portable device.
Peer to peer
Network in which all computers are equal and there are no centralised servers.
Personal Area Network
Short range network between a computer and a mobile phone or similar portable device.
personal firewall
Software application that controls network access to and from a single computer.
port
Number used to determine the type of service required when a computer connects to another.
print server
Computer on a network that receives and processes print requests.
protocols
A standard set of rules for performing tasks, such as communication.
proxy server
Computer on a network which acts on behalf of another, or through which all Internet data must pass.
push technology
System which notifies users of changes to web pages without them having to visit the page.
Read / write web
Refers to web pages which allow user interaction and collaboration.
Remote access
Ability to connect to a computer, over a network, as though you were physically present at the keyboard.
Router
Hardware device used to connect two separate networks.
RSS
Really Simple Syndicate. A push technology.
SAN
Network dedicated to providing disk storage to other computers on the network.
server
Computer on a network that provides services or performs work for others.
social bookmarking
Web site that lets users store and manage their favourite links, and share them with others.
social network
Web site that lets users create personal profile pages and share them with friends.
Storage Area Network
Network dedicated to providing disk storage to other computers on the network.
switch
Hardware device for connecting several computers on a network.
Synchronous
Data transfer method in which the sender and receiver are synchronised, allowing higher speed transfer.
tagging
Adding key words to an item such as a photo to describe its content.
TCP/IP
Transfer Control Protocol / Internet Protocol. Common protocol for LANs and the Internet.
thin client
Networking system whereby client computers rely on servers to perform their processing tasks.
top-level domain
Suffix at the end of a URL, such as .com or .org.
upload
To transfer data from a client to a server computer.
URL
Universal Resource Locator. Describes the location of an item, such as a web page, on the Internet.
Virtual LAN
Network form by several LANs which are in separate geographical locations.
Virtual Private Network
Allows a secure private connection over a public network, using an encrypted 'tunnel'. For example, a remote computer can securely connect to a LAN, as though it were physically connected.
VLAN
Network form by several LANs which are in separate geographical locations.
VPN
Allows a secure private connection over a public network, using an encrypted 'tunnel'. For example, a remote computer can securely connect to a LAN, as though it were physically connected.
WAN
Computer network over a large area, such as a country or several countries.
Web 2.0
Refers to web pages which allow user interaction and collaboration.
Web 3.0
Proposed evolution of the world wide web.
web server
Computer on a network that stores web pages.
Wide Area Network
Computer network over a large area, such as a country or several countries.
WiFi
Most common type of wireless connection.
wiki
Type of web page that any visitor can edit.
WiMax
Long range wireless network technology.
wireless hotspot
The area around a WiFi router where wireless access is available.
WLAN
Wireless LAN. A LAN what allows WiFi connections.
WWW
World Wide Web - a series of interlinked multimedia pages stored on the Internet.