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Networks

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dayo
10 diapositives · 351 Views · Sep 14, 2014

Networks. Computer Technology. Network. Two or more computers and other devices (printers or scanners) that are connected, for the purpose of sharing data and programs. Network Terms. File Server A computer connected to a network that distributes resources to other users

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Networks
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  1. Networks Computer Technology

  2. Network • Two or more computers and other devices (printers or scanners) that are connected, for the purpose of sharing data and programs

  3. Network Terms • File Server • A computer connected to a network that distributes resources to other users • Contains the software to manage and process files for other network users • Host Computer • Refers to any computer the provides services to network users • Used more commonly with the Internet

  4. Network Terms (continued) • Workstation • Refers to a personal computer connected to a network • Example • Each computer in the classroom • Client • Refers to the software on a computer that allows the user to access the server • Example • Novell Netware

  5. Network Interface Card (NIC) • Small circuit board that coverts the digital signals from a computer into signals that can travel over a network • Desktop Computers have the NIC inside the case with a jack on the outside for the network cable • Example • Our classroom computers • Notebook or Laptop Computers have a special card that fits into a slot or opening in the case • Example • Picture on this slide is the NIC for a Notebook or Laptop

  6. Network Connections Devices • Modem • A device that sends and receives data to and from computers over telephone lines. • Hubs • A device that connects several components of a network • Routers • A device that connects at least two networks • Gateway • A device that serves as an entrance to another network • All of these can be used alone or combination

  7. Local Area Network (LAN) • Computer network that is located within a limited geographical area, such as a school or small business • Example • The MRJH Network

  8. Wide Area Network (WAN) • Interconnected group of computers and peripherals that cover a large geographical area, such as multiple buildings • Examples • The Alpine School District Network • The Internet

  9. IP Addresses • A unique identifying number assigned to each computer connected to the internet • Example – 204.127.102.001 • Each computer on a network should have its own separate IP Address or conflicts will occur when there are duplicate addresses

  10. Resources Parsons, June Jamrich, and Dan Oja. Computer Concepts. Boston: Course Technology - Thompson Learning, 2002.