GCSE Computing Networks Key terms

1. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Stand alone
computer

2. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
A computer that isn’t
connected to any
others.

3. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Network

4. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
When more than one
computer are joined
together.
•Share files
•Share printers
•Share software

5. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
LAN

6. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Local Area Network
A network based on a
small geographic
location

7. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
LAN
Hardware

8. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Hub
Switch
WAP

9. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Client Server

10. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Files are stored on a
central server, and the
clients have to log onto
this server to get the
files.

11. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Peer to peer

12. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Files are stored on
individual machine and
you have to request
permission to access
files stored on other
machines.

13. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Network
Topologies

14. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Bus
Ring
Star

15. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
WAN

16. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Wide Area Network
A group of LANs joined
together. This is done
over a larger
geographic space.

17. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
IP Address

18. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
The address of a
computer on a network.
This will change when
the computer joins the
network from a different
location.

19. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
MAC
Address

20. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
The permanent
address of a computer,
regardless of where on
the network it is.

21. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Packets

22. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
When data is sent
across a network it is
broken into little
packets to make it go
faster.

23. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Protocols

24. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
The rules that govern
the communication
between computers.

25. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Network
Security

26. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
User access levels
Suitable passwords
Encryption techniques

27. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Network
Policies

28. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Acceptable Use
Disaster Recovery
Failover
Backup
Archiving

29. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Internet

30. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
The largest WAN.
Computer networks
are joined all over the
world to share
information.

31. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Internet
Hardware

32. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Modem
Router

33. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
DNS

34. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Domain Name Server
Each website has an IP
address. The DNS find the
relevant IP address based on
the website you want to visit.
www.google.com = 71.243.166.3

35. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
HTML

36. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
HyperText Markup
Language
Used as the language of
the internet. Websites
are created using HTML.

37. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
File Formats

38. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
•JPG = image
•GIF = animation
•PDF = document
•MP3 = sound
•MPEG = movie

39. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Compression

40. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Spare data is removed
from a file to shrink the
file size.
Makes it faster to send
across the internet.

41. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Lossy
Compression

42. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
When the file is
‘uncompressed’ the
quality will be less.

43. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
Lossless
Compression

44. Learning Objectives
REVISION
2.1.6 Computer communications
and networking
When the file is
‘uncompressed’ the
quality will be the
same.