Computer networking 1. Network- A network is the interconnection of various devices to share information and data. 2. Computer network is a group of computers and other devices connected to each other to share data and information. Types of Networks There are mainly three types of networks as discussed below: 1. LAN (Local Area Network ): It is a network that connects computers, mobile phones, tablet, mouse, printer, etc., placed at a limited distance. The geographical area covered by a LAN can range from a single room, a floor, an office having one or more buildings in the same premise, laboratory, a school, college, or university campus. The connectivity is done by means of wires, Ethernet cables, fiber optics, or Wi-Fi. LAN is comparatively secure as only authentic users in the network can access other computers or shared resources. Users can print documents using a connected printer, upload/download documents and software to and from the...