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Wireless Networks, Broadband and dial up.

Wireless Networks, Broadband and dial up. Lesson Objectives. By the end of the lesson you will understand: Advantages and disadvantages of wireless networks The differences between Dial-up and Broadband. Wireless Networks. https:// www.youtube.com/watch?v=okeSqr5eOmU.

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Wireless Networks, Broadband and dial up.

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  1. Wireless Networks, Broadband and dial up.

  2. Lesson Objectives By the end of the lesson you will understand: • Advantages and disadvantages of wireless networks • The differences between Dial-up and Broadband

  3. Wireless Networks

  4. https://www.youtube.com/watch?v=okeSqr5eOmU

  5. Advantages of wireless networks: • allows inexpensive LANs to be set up without cables • allows people the freedom of working anywhere a signal can be received • ideal for networks in old listed buildings where cables would not be allowed to be installed • global set of standards – you can use Wi-Fi all over the world • can use a variety of devices such as tablets, mobile phones, etc • health and safety – tidier desktop with no trailing cables.

  6. Disadvantages of Wi-Fi: • power consumption is high – which means laptops soon exhaust their rechargeable batteries • there may be health problems in using Wi-Fi • there may be security problems even when encryption is used • Wi-Fi networks have a very limited range (e.g. 150 ft) • can get interference if wireless network signals start to overlap • transmission speed slower than cable.

  7. Broadband and Dial Up

  8. https://www.youtube.com/watch?v=gsNaR6FRuO0

  9. Exam Questions

  10. Exam questions • An organisation is considering using a wireless network. Describe two advantages and two disadvantages for the organisation of using a wireless network over a cable network. [4] • Discuss the advantages and disadvantages of dialup and broadband connections when using the Internet. [4]

  11. Task • Go to www.ybgict.weebly.com • Go to A2 Resources -> Networks • Open 4 – wireless networks, broadband and dial up • Copy 3 advantages and disadvantages of wireless networks • Copy 3 advantages and disadvantages of both broadband and dial up • Copy and complete Exam questions

  12. Lesson Objectives By the end of the lesson you will understand: • Advantages and disadvantages of wireless networks • The differences between Dial-up and Broadband

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