Network+Hardware

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 * ** Component ** ||  ** What does it do? **  ||
 * File Server || A file server hosts the network, and permits the storage and retrieval of files. ||  ||
 * Network Interface Card || Network Interface cards allow signals to transfer between a device and the network. Most new computers contain a built-in network card. ||  ||
 * Network Cables || Cables used to link devices to a network or to create a network. There are different kinds of cables: coaxial cable, optical fibre cable, twisted pair, etc. ||  ||
 * Hub || A hub is a hardware that has ports that several computers can plug into. This allows data transfer between the computers. ||  ||
 * Router || A router transfers data from one network to another. It forwards the data package to its destination in the most efficient way by determining the least congested path. ||  ||
 * Switch || A switch avoids data collision in the network. As data packages travel to the switch, the switch examines the destination of the data package and creates a direct connection between the tow machines. ||  ||
 * Modem || A modem converts digital signals to and from analogue signals so that it can be transferred by the telephone system. ||  ||
 * Network operating system || Software that runs on servers to manage it’s data, security, applications and other functions. It also allows file sharing and printer access in a network. ||  ||
 * Firewall || A firewall is a software or hardware that is used to block unauthorized network transmissions that might lead to harm. ||  ||
 * Driver || A device driver simplifies or translates special commands for programs that the device doesn’t understand. ||  ||
 * Booster || A device that boosts signals. ||  ||
 * WI-FI || Allows devices that can connect to Wi-Fi transfer data wirelessly and connect to networks such as the internet. ||  ||