1. Module 2.1 Communication and networks in modern society Theme 2: Let’s communicate!

2. Communication today Transferring large amounts of data, sound, video, etc. to and from ICT devices anywhere in the world. Going beyond a single office…

3. Wide Area Networks Communication needs of a business: –Head Office –Branch offices –Warehouses –Mobile users WAN: Computer network which extends over a wide geographical area.

4. Establishing a WAN 3 rd party to provide connection, leased lines, –Expensive! VPN – Using Internet Infrastructure through ISP –Lower Cost!

5. WAN communication connections Fixed cable connections Satellite communication Microwave Cellular phone network: 2G, 3G, GPRS, EDGE, HSDPA.

6. Activity CHECK IF YOU UNDERSTAND p58 1

7. Uses of computer communications –Webcams –Video conferencing –Internet broadcasts –Podcasting –VoIP WAN allows convenience on large scale. Specific communication methods: –Mailing lists –Blogs –Online auctions –Fax to e-mail

8. Activity CHECK IF YOU UNDERSTAND p63 2

9. Activity CHECK LIST  I can.... 3 p63

10. Activity APPLY 4 p64