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Learning Objectives Understand what a network is and the advantages and disadvantages Know the difference between wired and wireless networks.

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Presentation on theme: "Learning Objectives Understand what a network is and the advantages and disadvantages Know the difference between wired and wireless networks."— Presentation transcript:

1 Learning Objectives Understand what a network is and the advantages and disadvantages Know the difference between wired and wireless networks

2 By the end of this session, you will: Understand the term Bandwidth Learn of the different ways we can communicate on a network. Know how we connect to the Internet and what is required.

3 Bandwidth tells us the rate at which data can be transmitted down the communications line in a given period of time…

4 The higher the bandwidth, the quicker the data will flow along the line… Web pages loaded quicker. Multimedia is downloaded faster. Internet browsing is faster. Quicker response time.

5 There are a number of connection types available to us when we want to access the services from the Internet… Each one has a different BANDWIDTH.

6 ADSL : Asymmetric Digital Subscriber Line. Is known as ‘Broadband.’ Is permanently switched on, no need for dial up. Has a high bandwidth. PSTN : Public Switched Telephone Network. Uses traditional telephone system to allow access to the Internet. Low Bandwidth Dial Up Connection.

7 Single users can connect to the Internet. Hardware and Software required. As well as a PC – Need: Internet Service Provider. ISP Software. Browser Software. Telecommunications line e.g. ISDN, ADSL. Modem/Broadband Modem/ISDN adapter.

8 To connect up: Dial up using ISP software. Modem converts signals from computer so it can travel along communications line to ISP. ISP provides connection to Internet.

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