A network is a
collection of computers, servers, mainframes, network devices, peripherals, or
other devices connected to allow data sharing. An example of a network is
the Internet, which connects millions of people all over the world.
Modem
A modem connects you to the Internet. A router connects your devices to your home network (also known as a Local Area Network or LAN) or WiFi network and then your devices can wirelessly communicate with each other. A router by itself, does not connect you to the Internet.
Router
A router is a device that provides Wi-Fi and is typically connected to a modem. It sends information from the internet to personal devices like computers, phones, and tablets. These internet-connected devices in your home make up your Local Area Network (LAN).
Switch
Switches are key building blocks for any network. They connect multiple devices, such as computers, wireless access points, printers, and servers; on the same network within a building or campus. A switch enables connected devices to share information and talk to each other.
Firewall
A Firewall is a network security device that monitors, and filters incoming and outgoing network traffic based on an organization’s previously established security policies.
Network Cable
An Ethernet cable, sometimes referred to as a network cable, is a cord that runs from a router, modem, or network switch to your computer, giving your device access to the local area network (LAN) — in other words, giving it internet access.