Computer networks enable people and organizations to better communicate. They facilitate sharing of hardware (like scanners and printers), software and data. This allows businesses to cut costs and increase productivity. Computer networking lets you backup and restore your files in the event of a catastrophe.

Communication: By using email and instant messaging systems, users can exchange information and collaborate more easily. It is a vital part of the everyday functioning of modern enterprises and businesses. It also allows people to work remotely and access resources like applications and file servers, printing devices and fax machines.

Resource sharing: Networking lets you share the same equipment between multiple computers, which helps you save time and money. It speeds up the speed at the speed at which large files can be transferred and enables you to work with memory-intensive programs.

Security enhancements: It offers enhanced data security by requiring user IDs and passwords for logging in. It also blocks unauthorised users from accessing your devices and allows you to determine how much bandwidth each device receives which helps keep your network operating smoothly.

The various types of computer networks are based upon how the devices are connected to one another like the ring topology that looks like an arc and connects each device to two other devices and the bus topology which has a central line, with connections for each device and the star topology with one central point of connection that all other devices are connected to. It is important to look at the advantages and disadvantages of each one before making a decision on which one is the best for you.