Hardware is sometimes used as a term collectively describing the physical aspects of telephony and telecommunications network infrastructure.

In information technology, hardware is the physical aspect of computers, telecommunications, and other devices. The term arose as a way to distinguish the "box" and the electronic circuitry and components of a computer from the program you put in it to make it do things. The program came to be known as the software.

Hardware implies permanence and invariability. Software or programming can easily be varied. You can put an entirely new program in the hardware and make it create an entirely new experience for the user. You can, however, change the modular configurations that most computers come with by adding new adapters or cards that extend the computer's capabilities. Like software, hardware is a collective term. Hardware includes not only the computer proper but also the cables, connectors, power supply units, and peripheral devices such as the keyboard, mouse, audio speakers, and printers.

In information technology, networking is the construction, design, and use of a network, including the physical (cabling, hub, bridge, switch, router, and so forth), the selection and use of telecommunication protocol and computer software for using and managing the network, and the establishment of operation policies and procedures related to the network.

A network is nothing more than two or more computers connected by a cable or by a wireless connection so that they can communicate and exchange information or data. In other words " Network Means a collection of interconnected computer network of stand-alone computer. Commenting on the computer for the exchange of information. The connection can be over copper, fiber optic, microwave and satellite communications". Obviously, computers can exchange information in other ways called the sneakernet or FloppyNet. Means that copy a file to a diskette and then walk the disk over to some other computer. You can create a computer network by hooking all the computers in your office together with cables and installing a special network interface card (NIC) in each computer so you have a place to plug in the cable. Then you set up your computer’s operating-system software to make the network work. If you don’t want to mess with cables, you can create a wireless network instead. In a wireless network, each computer is equipped with a special wireless network adapter. Lets start with,

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