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What is computer Network?
A computer networks is the connections between a PC and a printer or between a laptop and the Internet, At its essence, a network’s purpose is to make connections.
PURPOSE OF A COMPUTER NETWORK.
- Surfing the web (for example, to use social media sites, watch streaming video, listen to an Internet radio station, or do research for a school term paper)
- File sharing between two computers
- Video chatting between computers located in different parts of the world
- Instant messaging (IM) between computers with IM software installed
- Voice over IP (VoIP), to replace traditional telephony systems
TYPES OF NETWORKS
• Local-area network (LAN) = A LAN interconnects network components within a local region (for example, within a building).
• Wide-area network (WAN) = A WAN interconnects network components that are geographically separated. (e.g. two or more firms with multiple WAN)
• Campus-area network (CAN) = a university Network, a CAN might also be found in an industrial park or business park.
• Personal-area network (PAN) = A PAN is a network whose scale is even smaller than a LAN. As an example, a connection between a PC and a digital camera via a universal serial bus (USB) cable could be considered a PAN. Another example is a PC connected to an external hard drive via a FireWire connection. A PAN, however, is not necessarily a wired connection. A Bluetooth connection between your cell phone and your car’s audio system is considered a wireless PAN (WPAN). The main distinction of a PAN, however, is that its range is typically limited to just a few meters.
> Written by Mdeecoded
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