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                   Write the names of any four network terminologies.
                   1.  _______________________                    2.  _______________________

                   3. _______________________                     4. _______________________





                        DEVICES REQUIRED FOR A NETWORK


                 There are various types of devices 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 which provides the network access to a computer. It allows
                 the computer to connect to a network through a wired or wireless medium.


                                                   Hub or Switch                                            NIC
                                             It is hardware device that has various boxes 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  facilitate
                       Hub or Switch
                                             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  network.  It finds best  route  for
                 data packets over the network. It is located at the gateways where two
                 networks connect.

                                    Modem                                                              Router
                               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 into analog signals is
                               called modulation. The process of converting analog signals into 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
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