The Internet

• Medium for communication and interaction in inter connected network.

• Makes information constantly and instantly available to anyone with a connection.

Web Browsers:

• User agent for Web is called a browser:

o Internet Explorer

o Firefox

Web Server:

• Server for Web is called Web server:

o Apache (public domain)

o MS Internet Information Server

Protocol:

Protocols are agreed formats for transmitting data between devices. The protocol determines:

i. The error checking required

ii. Data compression method used

iii. The way the end of a message is signalled

iv. The way the device indicates that it has received the message