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3.   What is a Bus?
                      Ans.  The control unit and the internal storage are linked together by the sets of parallel electrical conducting
                          line called Bus.

                      4.   Define the purpose of the Cache memory.
                      Ans.  Cache Memory is a part of CPU and is used when there is swapping of information between the primary
                          memory and the ALU.

                      5.   What are Customised Packages?
                      Ans.  Programs that are specifically developed for the users who want to automate their work and generate
                          reports as per the need is called customised software.

                      6.   How is guided media different from unguided transmission media?
                      Ans.  In guided media transmission, communication that takes place with the help of a solid or wired medium
                          but in unguided transmission media communication that takes place with the help of non-physical identity
                          or wireless medium.

                  C.  Long answer type questions.
                      1.   What is communication? Explain the major components of the Communication System.

                      Ans.  Communication refers to transfer of information from one place to another. It means to establish links
                          between places or people and to share information and resources amongst each other. The major
                          components of the communication system are sender, a receiver and a communication channel.
                          ●  Sender is the one who sends data, i.e., the Source of information.

                          ●  Receiver is the one who receives data, i.e., the Destination of information.
                          ●   Communication  Channel  is  the  media  by  which  data  is  transferred,  (i.e.,  air,  wires,  waves,  satellite
                              connections, etc.) from sender to receiver and vice versa.
                      2.   What are language processors? Name and explain the different types of language translators.
                      Ans.  Language processors are the type of system software that helps in converting programs of high level
                          language to machine understandable language. Different types of language translator are:
                          ●     Assembler: An assembler is a utility program that helps to translate assembly language statements
                              into the machine code.
                          ●     Interpreter: An interpreter is a system software which translates high level language program into
                              machine code line by line.
                          ●     Compiler: A compiler translates a program that is written in high level language into machine level
                              language in one go.
                      3.   What is Internet? State any four advantages of creating a Network.
                      Ans.   Internet is the wide area network that links together millions of computers so that a wide range of users
                          can share and exchange information amongst themselves. Four advantages of creating a network:
                          ●    Networking is an effective way of sharing files among different nodes (connected computer).

                          ●  Networking helps in sharing of common hardware devices.
                          ●  Networking helps in quick delivery of information.
                          ●  With the help of network, data or information get transferred at a very low cost.

                      4.   Define Software. How can it be categorised? Explain in detail.
                      Ans.  Computer can neither think nor work on its own. It has to be provided with a set of pre-defined instructions
                          which are written in a computer language. Such sets of instructions are known as Programs. A set of organised
                          programs meant for specific purpose is known as Software.


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