Networks 1.3 Flashcards
a computer network
-where 2 or more computing devices are connected together
-so they can share resources
devices may include:
-personal computers
-laptops
-tablets
-smart phones
-servers
-printers
-smart tvs
types of networks
-Local area network (LAN)
-Wide area network (WAN)
Local area network
-network devices must be near each other (eg same building)
How are Local area networks devices connected
-by either copper Ethernet cable
-WIFI
each device in a Local area networks is called a ..
node
Benefits of Local area networks (LAN)
-resources can be shared by users
-files can be added to shared directories and any user with permission to access
-users can log onto any work station on the network
-users can access their files by logging onto any computer in the LAN
Example of shared resources on Local area networks
-shared drive on your school network
2 benefits of LAN
-users can access their files by logging onto any computer in the LAN
–resources can be shared by users
Advantages for networks
-ability to share files
-ability to have multi-user
-organisation can track what users are doing
-can back up files centrally
-deploy/upgrade software centrally
Disadvantages for networks
-extra hardware costs
-cost of employing someone to maintain it
-greater security risks
network
a group of devices connected together to communicate + share resources
Internet
a group of inter-connected networks
WAN
-any network which computers communicate using resources supplied by a third party carrier
-covers a large geographical location
-eg internet
IP addresses
-internet protocol
every computer has this
-4/8 bit number separated by dots
