Computer networking
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Networking involves connecting two or more computers or electronic devices to share information. The main advantages of networking are the ability to share files, hardware, websites and programs between devices. The main disadvantages include the risk of the entire system crashing if the network server fails and potential slowdowns from high network usage. Common network types are LANs which connect devices in a local area like a home or office, and WANs which connect multiple LANs over a wider area. Key networking hardware includes servers to store and share information, workstations to access the server, and switches, routers and other devices to facilitate communication between devices on the network.
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- 2. NetworkingContentWhat is networking?Advantages of a NetworkDisadvantages of a NetworkTypes of networksHardware of a networkCareers in networking
- 3. What is networking?A network is two or more computers communicating (sharing information) with each other through a means of a hardwire connection or a wireless connection.The connections also include a computer and smart phone, printer, projector, smartboard or many other electronic devices that can display information from a computer.
- 4. Advantages of a Network?Computers can share information as hardware data, printers, websites, blogs etc.File transfers are easily accomplishedNetworked computers can use a single internet connect to save money and timePrograms can be shared from one computer to anotherMulti player gamingEntertainment through video sharingAbility to login anywhere in the networkSecurity maintained from one location
- 5. Disadvantages of a Network?If the network server crashes the entire system goes downCost of hiring technical support for the maintaining the systemCentral location of printers may be an inconvenienceAllocated storage space may be used up by one individualMultiple streaming may cause a slow-down in the system
- 6. Who uses networking?Users of a network can be a family that has multiple computers and wants to store information in a central location.Educational systems Small or large businesses
- 7. What types networks are there?LAN – Local Area NetworkThis type of system is generally done where the distance is relatively short. LAN systems are found in an office building, school, home or small business.WAN – Wide Area NetworkThese systems cover a wide area as the name implies. This is accomplished by connecting two or more LANs through the use of a router. The router maintains the IP addresses for both the LAN and WAN.
- 8. What types networks are there?Wireless Local Area NetworkThis is a LAN based on WiFi wireless network technology.MAN - Metropolitan Area NetworkA network spanning a physical area larger than a LAN but smaller than a WAN, such as a city. This type of system is typically owned and operated by a single source, generally a government or large corporation.
- 9. What types networks are there?Campus Area NetworkThis is a network that spans multiple LAN’s but smaller and is usually found at a university or local business.Storage Area NetworkThis connects a server to a data storage device via a Fibre Channel.
- 10. Hardware of a networkThe hardware required to build a network would include:ServersWorkstationsNetwork interface cardsSwitchesRepeatersBridgesRoutersClick on the labels to learn more about each piece of hardware.
- 11. Hardware of a networkServersIs the central part of a network and handles all the information coming and going through the system. The network system software is stored on the server. The server is generally very fast due to the amount of RAM, storage space and network card.
- 12. Hardware of a networkWorkstationsThese are the computers that share the server for operating.
- 13. Hardware of a networkNetwork Interface CardsThis is called the NIC and it provides the connection between the computer and network. This will be found inside the computer and determine the speed of the computer connect to the network.
- 14. Hardware of a networkSwitchesAre a central point in which multiple workstations are connected and then the switch is connected to the server. This allows for more than one workstation to work from one connection. A switch may also amplify a signal to increase reliability or speed.
- 15. Hardware of a networkRepeatersBoost the signal of the network connection. Because connections loose strength in the signal as it travels over long distances the repeater compensates for the loss.
- 16. Hardware of a networkBridgesConnect two networks together. If there is a large network that needs to be split to make it run more efficiently, then a bridge can do just that. It creates two smaller networks that work more efficiently instead of a slow large network. A bridge also allows a new network to operate with an older network. The bridge will also manage the traffic in the system to assure it runs at peak performance.
- 17. Hardware of a networkRoutersDirect traffic in the system to prevent interference and slow systems. The router knows where the signal is going to and where it came from. It also knows how to select the best path for a signal.
- 18. Hardware of a networkCareers in NetworkingNetwork AdministratorNetwork Systems EngineerNetwork Service TechnicianNetwork Programmer/AnalystNetwork/Information Systems