What is Computer Network? Why?
Computer Network
What is Computer Network? Why?
If any computer is not connected to others it is called "a stand-alone machine". Today if anyone uses any stand-alone machine , he must be considered a stranger because the world today is of computer networks. A network machine can send/receive packets (bits of data per second) to/from any other machines e.g. Internet. Our computers/tablet PCs/smart phones can never be alone anymore. Yes, they have been connected to their networks both local (e.g. the networks in our school) and global (e.g. Internet). We can share our resources such as files, printers etc. to each other through our local area network (LAN) or we can exchange our data through the wide area network (WAN) like Internet.
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| Figure 1 What is Computer Network |
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| Figure 2 Computer Network classified by Area Width |
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| Figure 3 Types of Network Topology |
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| Figure 4 Star/Extended Star Topology |
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| Figure 5 The Client-Server Network What/How |
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