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Using ICT Systems

Dean Whittle IT GCSE Inglés 17 fichas

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1BIOSBasic In Out System
2ROMRead only memory
3Where the operating system is storedSecondary storage / Hard disk
4What does the BIOS do?check hardware such as memory chips and then load and
run the operating system
5Where the BIOS is storedROM
6Boot errorWhen the computer cant find an operating system
7Logging onThe process of identifying yourself to a computer system using a user name and password.
8Logging outThe process of exiting a computer system.
9UsernameUsed to identify the user
10PasswordUsed to confirm the identity of the user.
11LAN (Meaning and description)Local area network, over a small area usually one building
12WAN (meaning and description)Wide area network, a network over a large geographical area usually connected by the internet.
13Advantages of a networkShare files
share hardware
share software
Share internet connection
14Disadvantages of a networkSecurity issues for files (viruses and hackers)
Can be complicated to maintain
need expertise to set up
Viruses can spread easily
15Name 3 topologiesBus network
Ring network
star network
Peer to peer network
16Description of a star networkIn a star network, all the
computers and peripherals
are connected to a central
device so that each has its
own cable connection:
17Description of a peer to peer networkThe computers all connect to one another with no central server.