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Double Tap Century #Technology Literacy
21 st
Skills
Identify the following terms.
1. A computer which depends on the server for all the resources
2. A global network of millions of computers and computer networks
all over the world
3. A website that is specifically designed to provide a single point of
access for information
DEVICES REQUIRED FOR A NETWORK
There are various types of devices 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)
NIC is an expansion card that enables a computer to access a network. It allows the
NIC
computer to connect to a network through a wired or wireless medium. It is also
known as Network adapter.
Hub or Switch
Hub or Switch is a hardware device that has various ports to which the
computers, printers and other networking devices are connected. The main
Hub or Switch function of a hub is to direct information around the network and facilitate
communication between all the connected devices.
Router
Router 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 analog signals to digital signals is
called demodulation. The process of converting digital signals to analog signals is called
Modem modulation.
#Computer Networking 15

