LANs, WANs and the Internet
LAN - Local Area Network
WAN - Wide Area Network
Transmission Media = transfer data between computers
copper cable, optical fibre, wireless, coaxial cable
Bandwidth = 10Mbps to 100Mbps
Function = Share files send emails share hardware devices
Covers the size of a building or room
Transmission Media = telecommunication links to connect computers
Bandwidth = 56Kbps to 10Mbps
Function = global communication through emails and video conferencing
Covers the size of a city or country
Transmission Media = uses transmission media which include public tele[hones and wireless connections
Bandwidth = 10Mbps
Function = Search for information buy and sell items and download software and much more
Global network of individual computers and networks
Client = This is a workstation computer that accesses the network resources provided by the servers
Server = A powerful computer that provides a network resource. A file server stores and manages access to application software and the network user's files
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.