Learning objectives after learning this chapter that students will be able to: • • • • • • • • define what a computer network is list the advantages of network list various wired and wireless media for communication identify the various network devices, identify the type of networks according to area subject to describe the different terms associated with computer network. List various security threats to computer network listing the preventive and remedial measures against these threats
Have you ever been working on the Internet? Have you ever used an ATM? Have you ever given print command on a computer to print to a printer on another computer? Have you ever transferred songs from your computer to a cell phone or vice versa? If the answer to any of these questions is Yes, have you experienced and exploited by a computer network. In this chapter you will learn about the different types of computer networks, their benefits and what it takes to create computer networks. Puzzle 1, you can place the 10 coins in such a manner that they are in 5 straight lines and each line has exactly 4 coins? The designers of computer networks meet such situations. They need to think about different ways of connecting your computers so that the specific objectives of the network setting is achieved.
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COMPUTER NETWORK
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COMPUTER NETWORK
Network-a brief overview as a computer network is a collection of interconnected computers and other devices that can communicate with each other. In this context the term linked means that there is a way through which data can be transferred from a computer/device to another. A computer network is a collection of interconnected computers and other devices that can communicate with each other and share resources for hardware and software. Why do we have computer networks? Are there any advantages of networked computers on stand alone computers...?
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