E-ICT TYPES OF COMPUTER NETWORKS 2 ANTI-DOTE SERIES.pptx

These slides contain the advantages and disadvantages of the types of computer networks. These computer networks are: Personal Area Network, Metropolitan Area Network, Local Area Network and Wide Area Network.

1. NAME: ENIMIL KWEKU BOATENG COURSE: ELECTIVE ICT TOPIC: TYPES OF COMPUTER NETWORKS 2 EMAIL: [email protected] WEB: HTTP://ENIMIL.GREAT-SITE.NET Sir Enimil Anti-Dote Series

2. Lesson quote If you're walking down the right path and you're willing to keep walking, eventually you'll make progress. Barack Obama Anti-Dote Series Sir Enimil

3. LESSON OBJECTIVES At the end of this lesson, the student should be able to: State and explain the advantages of the types of computer networks. State and explain the disadvantages of the types of computer networks. Anti-Dote Series Sir Enimil

4. Advantages of personal area network It is good for short range communication It does not require huge or extra space to setup It can connect to many devices at a time It is portable and reliable It is easy to use and secure Sir Enimil Anti-Dote Series

5. disadvantages of personal area network Data transfer rate is slow It covers a very short distance in communication It is vulnerable to interferences like radio signals Sir Enimil Anti-Dote Series

6. advantages of local area network It is easy to manage and control local area network since it is limited geographically It is easy to share common resources like printers, scanners, hard disks, etc., among users in a local area network It is easy to share off-the-shelf or customised software applications among users in a local area network Communication on a local area network is easy and fast as there are Ethernet cables that support varied data transfer rate from 10/100Mbps through to 10Gbps from Cat5 to Cat7 Ethernet cables. Sir Enimil Anti-Dote Series

7. disadvantages of local area network Local area network is limited in size since it covers a small geographical area Initial setup costs of installing local area network is high because you need to purchase hardware devices, Ethernet cables and software applications It is difficult to setup and maintain local area network as it requires skilled technicians and network administrators All users are affected in a typical server based local area network if the server develops some faults It is easy to spread malware in a local area network Sir Enimil Anti-Dote Series

8. advantages of metropolitan area network It is extremely efficient and provides fast communication through high-speed transmission media like fibre optic cables It provides a good back bone for large networks and provides greater access to wide area networks The dual bus used in metropolitan area network helps the transmission of data in both directions simultaneously It serves many cities and towns and this makes it possible to connect large areas at a relatively low cost Sir Enimil Anti-Dote Series

9. disadvantages of metropolitan area network It covers a geographical area wider than local area network but lesser than wide area network It is an interconnection of local area networks It is controlled or owned by a user group or an Internet service provider (ISP) who sell services to users There is moderate to high data rates It helps in the sharing of resources across cities Metropolitan area network provides uplinks for connecting local area networks to wide area networks and the Internet Sir Enimil Anti-Dote Series

10. advantages of wide area network It covers a large geographical area Like local area network, it allows sharing of resources and software applications among users In wide area network, users have latest files because software files are shared among all users Data and information are stored on a centralised server making it accessible across the globe. Sir Enimil Anti-Dote Series

11. disadvantages of wide area network It needs a good firewall to restrict outsiders from entering and disrupting the network It is expensive to setup a WAN. It can be slow and complicated, In fact the bigger the network the more expensive it is Once set up, maintaining a network is a full-time job which requires network administrators and technicians to be employed Security is a real issue when many different people have the ability to use information from other computers. Protection against hackers and viruses adds more complexity and expenses. Sir Enimil Anti-Dote Series

12. Try thy hands on 1. State four advantages of the following: I. Personal area network II. Wide area network III. Local area network 2. State three disadvantages of the following: I. Metropolitan area network II. Wide area network III. Local area network Anti-Dote Series Sir Enimil

13. Thanks 4 watching Next tutorials will be on; Network Topology Subscribe and keep the channel active. Anti-Dote Series Sir Enimil