In which way computer network facilitate our life?

Computer networking may be considered a branch of electrical engineering, telecommunications, computer science, information technology or computer engineering, since it relies upon the theoretical and practical application of the related disciplines.
A computer network has the following properties:
Facilitates interpersonal communications
People can communicate efficiently and easily via email, instant messaging, chat rooms, telephone, video telephone calls, and video conferencing.
Allows sharing of files, data, and other types of information
Authorized users may access information stored on other computers on the network. Providing access to information on shared storage devices is an important feature of many networks.
Allows sharing of network and computing resources
Users may access and use resources provided by devices on the network, such as printing a document on a shared network printer. Distributed computing uses computing resources across a network to accomplish tasks.