INTERNET AND THE WORLD WIDE WEB

Grade 12

Connecting To the internet

1)

Dial up networking

•Cheapest & Slowest

•56.6 Kbps

Connecting To the internet

2)

ISDN

128 kbps

Integrated Service Digital Network

Connecting To the internet

3)

ADSL

Fastest

Asymmetric Digital subscriber Line

Transforms the existing telephone wires into a high-speed digital data lines

A Protocol

A Standard set of rules in which different networks are

linked together

TCP/IP

The protocol

for sending

& receiving

data over the internet

TCP/IP breaks down the data into little packets then ensures that the data is reassembled into its original form

Host ( Server)

The computer on the internet that provides services such as e-mail, news , data

IP Address

The unique address that each computer has to be identified

The first two or three numbers identify the computer networkThe rest identify the individual computers

You are tracked !!!!

Every time you send an-email or browse the web , your IP is send behind the scenes

Internet Cache

Speeds up the display of web pages

The files & pages stored by the web browser on your hard disk

Temporary internet files