Computer Networking is basically a network of computers, where a computer is connected with another computer through a LAN / Interface card and UTP CAT-5 cable. There can be a many computer connected with each other through a hardware device called either a Switch / Router / or a Hub. These network devices have ports or sockets through which a LAN Cable connector connects to it.
Earlier days, the LAN Cable used was Co-axial cable (it was similar to the cable which is generally seen with cable connection) some of the basic hardware components of computer networking are Network Card , Repeaters , Hubs , Bridges , Switches ,Routers , UTP Cables, Connectors.
There are different types of networks in computer. LAN or Local Area Network are those computer networks which have lesser computer and are defined to a particular geographical area. The area is generally within a kilometer. While WAN or Wide Area Network connects computers which are placed far distance, they are connected either with satellite or optical fibres as they cover a larger geographical area.
A laptop computer is also known as notebook computer or notebook. Laptop computer is a small portable mobile computer which typically weighs 1.5 kg to 6 kg. many older laptops weigh more.
Laptops generally run on a single main battery while a person is moving and is using it. It also runs on AC/DC power when a user stationary.Laptops contain components that are similar to their desktop counterparts and perform the same functions, but are miniaturized and optimized for mobile use and efficient power consumption, although typically less powerful for the same price. Laptops usually have liquid crystal displays and most of them use different memory modules for their random access memory (RAM), for instance, SO-DIMM in spite of the larger DIMMs. In addition to a built-in keyboard, they may utilize a touchpad or a pointing stick for input, though an external keyboard or mouse can be attached