Using ICT Systems

Question	Answer
BIOS	Basic In Out System
ROM	Read only memory
Where the operating system is stored	Secondary storage / Hard disk
What does the BIOS do?	check hardware such as memory chips and then load and run the operating system
Where the BIOS is stored	ROM
Boot error	When the computer cant find an operating system
Logging on	The process of identifying yourself to a computer system using a user name and password.
Logging out	The process of exiting a computer system.
Username	Used to identify the user
Password	Used to confirm the identity of the user.
LAN (Meaning and description)	Local area network, over a small area usually one building
WAN (meaning and description)	Wide area network, a network over a large geographical area usually connected by the internet.
Advantages of a network	Share files share hardware share software Share internet connection
Disadvantages of a network	Security issues for files (viruses and hackers) Can be complicated to maintain need expertise to set up Viruses can spread easily
Name 3 topologies	Bus network Ring network star network Peer to peer network
Description of a star network	In a star network, all the computers and peripherals are connected to a central device so that each has its own cable connection:
Description of a peer to peer network	The computers all connect to one another with no central server.

Resource summary

	Created by Dean Whittle about 8 years ago