Network+1

**Routers **  - A  router is a device that forwards data packets between computer networks, creating an overlay internetwork. A router is connected to two or more data lines from different networks. In a practical use, routers can be used to boost a signal to make it stronger for a person who might out the range of an Ethernet cable. Therefore you can go wireless by sending the signal over a distance, so the router does not need to be directly next to the device to work.
 * Network technologies **

==== **Switches **  - A  network switch or  switching hub is a computer networking device that connects network segments. ==== ====Network switches appear nearly identical to network hubs, but a switch generally contains more intelligence (and a slightly higher price tag) than a hub. Unlike hubs, network switches are capable of inspecting data packets as they are received, determining the source and destination device of each packet, and forwarding them appropriately. ====

**Hubs **  - An Ethernet hub, active hub, network hub, repeater hub or hub is a device for connecting together several Ethernet devices jointly and making them act alone network segment.

<span style="font-family: 'arial','sans-serif'; font-size: 16px;">A network hub is an unsophisticated device in contrast with, for example, a switch. A hub does not scrutinize or manage any of the traffic that comes through it: any packet towards the inside any port is rebroadcast on all other ports. So in practical terms, if you have broadband and you want a connection to the internet and you can have more than one device connected via the Ethernet ports so you can have more than one laptop connected to the internet via the hub.