networks Flashcards
what is a network
a collection of two or more computers connected to each other in order to exchange information and share resources.
what are some advantages of networks
Devices such as printers can be shared and therefore each user does not need their own device connected directly to their computer.
If all data is stored centrally, then it is easier to back it up
access their own personal files from any computer on the network.
Users can work collaboratively on the same document.
what are some disadvantages of networks
Extra hardware and infrastructure is needed and may be expensive.
It can lead to computer viruses spreading more rapidly.
Technical knowledge is needed to set up and manage the network.
what is a WAN
a network of computers over a large geographical area that makes use of external connections.
What are the characteristics of a WAN
Devices need network cards to connect
Network is created by using the telecommunications network
A modem or router is needed to connect
Computers are over a large geographical area,
what is a LAN
A LAN is a network of computers over a small geographical area.