Notes 3 (Chap 13, 15 & 16)

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Notes 3 (Chap 13, 15 & 16)

N
etwork
-
A group of two or more computers connected together

(The benefit of having a network is to share resources and it saves you
money)

Bandwidth
-

Bandwidth refers to how much data you can send through a
network or modem
connection.

Protocol
-

The language computers use to “speak” to one another on a
network

Local area network (LAN)



A collection of computers on a network on a
network in the same area.

Wide area network

(WAN)


Collection of computers on a network in
diffe
rent areas. Distance no longer matters.

Intranet
-

A private network that uses the same protocol as the internet

Firewall



Software that prevents outsiders from accessing the internet

Router



This a hardware that routes data (hence the name) from a local

area network (LAN) to another network connection

Server/client



Each is a client connected to a central computer called a
file server

Internet



A worldwide network of computers

Browser



A software application use to locate and display web pages

Uniform

resource locator (URL)


The address of a web page on the
internet

D
omain name



used to locate information on the internet



Top level domain

Type of organization

.edu

Educational institutions

.com

commercial

.gov

government

.mil

military

.net

Network organizations

.org

Non
-
profit organizations

.biz

business


World Wide Web (
WWW
)


a worldwide information giving system

Hypertext markup language (HTML)
-

the language used to make and
format internet pages

Search engines


a website containing

information and leads you to find
other websites

Hyperlink


a link from the html that leads to other World Wide Web pages