Networking is the practice of connecting computers and other devices together to share data and resources. It is used in many different ways, such as connecting computers in a home or office, connecting computers in different locations, and connecting computers to the Internet. Major vendors for networking technology include Cisco, Juniper, HP, Dell, and IBM. These vendors provide a wide range of networking products, such as routers, switches, firewalls, and wireless access points. They also provide services such as network design, installation, and maintenance.