Page 12 - KEC Khaitan C8.1 Flipbook
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Modem is the short form of Modulator-Demodulator, where the modulator converts digital signals
                  to analog and the demodulator converts analog signals back into digital.

                                GATEWAY

                                A gateway is a network device that allows the data to flow between two different
                                networks that may use different protocols. It collects data that is to be sent from
                                one device, converts it into small packets and then sends them to another device.



                                     21 st
                                   Century   #Leadership & Responsibility
                                     Skills
                     “Network has proved to  be a boon  for  the                       Like rivers flowing through
                     mankind.  We  should  use  it  wisely  and not                 landscapes, data on the internet
                     misuse  it  to  spread  false news, rumours,                 travels across networks in streams
                     or images  that  can disrupt  the  peaceful                            of information.
                     atmosphere around us.”





                            NETWORK TERMINOLOGIES

                  There are several terms related to computer network. Let us discuss some of them.

                  SERVER

                  A server is also called host computer. It controls the access to the hardware and software on the
                  network. It provides a centralised storage area for the programs, data and information.

                     The server that performs a specific task is called a dedicated server.
                     The server that manages the printers and documents being printed is called the print server.
                     The server that stores and provides the access to a database is called a database server.

                     The server that manages the network traffic is called a network server.
                     The server that delivers the requested web pages to our computer is called a web server.


                  CLIENT
                  It is a computer which depends on the server for specific resources. For example, a server might
                  store a network version of an Excel program. Every client on the network can access the Excel
                  program from the server.


                  INTERNET

                  Internet is a global network of millions of computers and computer networks all over the world.
                  It allows us to access and share information over the network. The Internet contains billions of
                  websites to provide information.








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