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4.  ................................. organises fragments of files into continuous blocks.

                    5.  ................................. are commonly used in businesses, schools and homes.

                 C.  Write ‘T’ for true and ‘F’ for false.
                    1.  Data compression program is used to compress a large size file into
                      smaller size file.                                                                   .....................

                    2.  A computer system is made up of a number of software devices.                      .....................

                    3.  Virus scanner is used to scan only folders for virus.                              .....................
                    4.  DBMS is a utility software.                                                        .....................

                 D.  Short answer type questions.
                    1.  What is an operating system?
                      ......................................................................................................................................................................................

                    2.  Write the names of any three general purpose software.
                      ......................................................................................................................................................................................

                    3.  What is utility software?
                      ......................................................................................................................................................................................

                 E.  Long answer type questions.
                    1.  What is system software? What are the different types of system software?
                    2.  What is programming software? Differentiate between assembler and interpreter.

                    3.  Write any one difference between system software and application software.



                                                   In the lab                                       Experiential Learning



                   With the help of your teacher, run and observe how:

                        a.  a virus scanner scans the system.
                        b.  disk defragmenter organises the fragments
                          of files.















                  Teacher's Corner

                 1.  Talk about different types of operating systems.
                 2.  Discuss utility software and application software.



                                                                                               Types of Software  13
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