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Networks and the Internet

Networks and the Internet. By Merrill Spain. Networks. Types: Local area networks (LANs ) W ide area networks ( WANs) M etropolitan area networks ( MANs) N eighborhood area networks ( NANs) P ersonal area networks ( PANs). Communications Devices.

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Networks and the Internet

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  1. Networks and the Internet By Merrill Spain

  2. Networks • Types: • Local area networks (LANs) • Wide area networks (WANs) • Metropolitan area networks (MANs) • Neighborhood area networks (NANs) • Personal area networks (PANs) Merrill Spain; Friday, June 22, 2012

  3. CommunicationsDevices dial-up modems and cable modems DSL and ISDN modems network interface cards gateways, routers, wireless access points, hubs Merrill Spain; Friday, June 22, 2012

  4. Networks • Advantages: • Information Sharing • Hardware sharing • Software sharing • Collaborative environments • Disadvantages: • Malicious codes • Network faults Merrill Spain; Friday, June 22, 2012

  5. InternetConnections Merrill Spain; Friday, June 22, 2012

  6. Dangers Of the Internet Merrill Spain; Friday, June 22, 2012 Might accidentally install a virus Not everything advertised is always true Malware and spyware; easily infects Being hacked from an online source

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