Networks. Unit 5 Terminology Study Assignment Review Computer Technology. S3 Obj 2 1-3
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1 Networks Unit 5 Terminology Study Assignment Review Computer Technology S3 Obj 2 1-3
2 Network A computer network, or simply a network, is a collection of computers and other hardware components interconnected by communication channels that allow sharing of resources and information.
3 Network Beginnings The Defense Advanced Research Projects Agency (DARPA) funded the design of the Advanced Research Projects Agency Network (ARPANET) for the United States Department of Defense. The First operational computer network in the world began in the late 1960 s.
4 ARPANET Team Interested in more info on ARPANET? Click below to watch the 8 min. video
5 Properties of a Network Facilitates communications Permits sharing of files, data, and other types of information Share network and computing resources (i.e. network printer) May be insecure May interfere with other technologies May be difficult to set up
6 Types of Network Wiring Twisted pair telecommunication Coaxial cable Television, office buildings and LANs ITU-T b.hn Uses home wiring (Coaxial able, phone lines, etc.) Optical Fiber Cable Glass fiber
7 Wireless Networks Terrestrial microwave Communications satellites Wireless LANs Infrared Communication Radio and spread spectrum technologies (Blue Tooth) Global Area network (GAN)
8 Network Classifications Personal Area Network (PAN) Local Area Network (LAN) Home Area Network (HAN) Campus Area Network (CAN) Metropolitan Area Network (MAN) Wide Area Network (WAN) Internetwork (Internet)
9 Local Area Network (LAN) Computer network that is located within a limited geographical area, such as a school or small business Example The FFJHS Network
10 Wide Area Network (WAN) Interconnected group of computers and peripherals that cover a large geographical area, such as multiple buildings Examples The Davis School District Network The Internet
11 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 that provides services to network users Used more commonly with the Internet
12 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
13 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.
14 IP Addresses A unique identifying number assigned to each computer connected to the internet Example Each computer on a network should have its own separate IP Address or conflicts will occur when there are duplicate addresses IPv6 is the successor to the Internet's first addressing infrastructure
15 WiFi A mechanism for wirelessly connecting electronic devices. A device enabled with Wi-Fi, such as a personal computer, video game console, smartphone, or digital audio player, can connect to the Internet via a wireless network access point.
16 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 Switch A network switch or switching hub is a computer networking device that connects network segments or network devices All of these can be used alone or in a combination
17 The End! Use these notes to complete the Review activity and study for the test!
18 Resources Parsons, June Jamrich, and Dan Oja. Computer Concepts. Boston: Course Technology - Thompson Learning, networks
Networks. Unit 5 Terminology Study Assignment Review Computer Technology. S3 Obj 2
Networks Unit 5 Terminology Study Assignment Review Computer Technology S3 Obj 2 Network A computer network, or simply a network, is a collection of computers and other hardware components interconnected
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