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Computer networks enable individuals and organizations to communicate more efficiently. They make it easy to share hardware (like printers and scanners) as well as software and data. This allows businesses to cut costs and improve productivity. Computer networking lets you backup and restore your files in the event of a catastrophe.

Communication: Using instant messaging and email systems users can share information and collaborate more easily. It is an essential component of the day-to-day operations of modern businesses and enterprises. It also enables people to work remotely and access resources, such as applications, file servers, printing devices and fax machines.

Resource sharing: Networking lets you share the same equipment between multiple computers, which can save time and money. It also speeds up the process of transfer of large files and assists you in working on intensive applications that require memory.

Increased security: It offers enhanced data security by requiring user ID and passwords for logging in. It also prevents unauthorized users from accessing your devices, and allows you control how much bandwidth is allocated to each device. This keeps the network running smoothly.

The various kinds of computer networks are based upon how the devices are connected to one another, such as the ring topology, which looks like the shape of a circle and connects each device to two others or the bus topology, which includes a central line and connections for each device, or the star topology that has one central connection point that all other devices are connected to. Each of these has its pros and cons, so you should be aware of which matches your needs.

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