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Network Sampoerna
- 1. Networks Jimmy F G - Thursday, June 12, 2008 Sampoerna Foundation
- 4. Networks A network is two or more computers connected together so they can communicate which each other. There are 2 main types of network…
- 5. Networks: LANs LAN stands for: L OCAL A REA N ETWORK LANs are networks that are found where computers within a building need to communicate. They are Small and Local!
- 7. Networks: WANs WAN stands for: W IDE A REA N ETWORK WANs are networks that are found where computers in different areas or countries need to communicate. They are long range and not local!
- 11. Networks As well as knowing the advantages and disadvantages of a network… You need to know the advantages and disadvantages of 3 network topologies…
- 12. Network Topologies There are 3 main types of network topologies: The Ring Network The Bus Network The Star Network
- 13. Network Topologies The Ring Network: Computers are connected together to form a ring shape so that none of the m is more important than any of the others.
- 15. Network Topologies The Bus (or line) Network: Computers are connected like bus stops on a main road. None of the m is more important than any of the others.
- 17. Network Topologies The Star Network: Computers are connected like a star to a central computer such as a mainframe. This is also called the “host” computer.
- 19. Networks: Security Because networks are almost vital to an organisation’s daily activities, they must be kept safe and secure… There are 3 main types of network security… Physical , Access and Data .
- 20. Networks: Security Physical security means that the hardware of the network is protected from theft and kept safe.
- 21. Networks: Security Access security means that there is a limit to the amount of access a user has to the information held on the network.
- 22. Networks: Security Data security means that there are measures taken to prevent the loss of data held on the system.
- 27. WANs HW and SW By the end of this section, you will know and understand the hardware and software involved in making a WAN!