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Let’s CatCh uP
Write the names of any four network terminologies.
1. _______________________ 2. _______________________
3. _______________________ 4. _______________________
DEVICES REQUIRED FOR A NETWORK
There are various types of devices and components required for a network, such as Network
Interface Card (NIC), Hub, Switch, Router, Modem, Network Cable and Gateway. Let us discuss
about these in detail.
Network Interface Card (NIC)
It is an expansion card that enables a computer to access a network. It allows
the computer to connect to a network through a wired or wireless medium.
Hub or Switch NIC
It is a hardware device that has various ports to
which the computers, printers and other networking devices are connected.
The main function of a hub is to direct information around the network and
Hub or Switch
facilitate communication between all the connected devices.
Router
It is a networking device used to connect and facilitate transfer of data in the
form of packets between two networks. It finds best route for transmitting
data packets over the network. It is located at the gateways where two
networks connect.
Router
Modem
It stands for MODULATOR–DEMODULATOR. It is a hardware device that allows a
computer to send and receive data over a telephone line. It converts data from digital
to analog and vice versa. The process of converting digital signals to analog signals is
called modulation. The process of converting analog signals to digital signals is called
Modem demodulation.
Networking Cable
Networking cable also known as Ethernet cable is a transmission medium that
allows to transport information from one computer to other place. There are
various types of networking cables such as coaxial cable, twisted pair cable and
optical fiber cable. Ethernet cable
Computer Networking 11

