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Worksheet-1

                                                     (Based on chapters 1 to 6)

                 A.  Give two examples of each of these.

                    1.  Disk Drive                       -  ................................   ................................
                    2.  Port                             -  ................................   ................................

                    3.  Number System                    -  ................................   ................................

                    4.  Computer Viruses                 -  ................................   ................................

                    5.  Unethical Practices              -  ................................   ................................
                    6.  Components of MS Excel           -  ................................   ................................

                 B.  Define the following terms:

                    1.  Hardware                         2.  Radix                    3.  Antivirus
                    4.  Cyber Crime                      5.  Cell Range               6.  AutoFill

                 C.  Guess! Who am I?

                    1.  I am the brain of a computer that does all the calculations and runs
                       all the programs.                                                             ................................

                    2.  I am a hardware component of the computer used to control the
                       power supply.                                                                 ................................
                    3.  I am a digital video camera connected to a computer.                         ................................

                    4.  I am a group of 8 digits either 0 or 1.                                      ................................

                    5.  I am a type of malicious program designed to damage or carry out
                       other unwanted actions on a computer system.                                  ................................

                    6.  I am used to describe the mark, traces or "footprints" that people
                       leave when they use the Internet.                                             ................................
                    7.  I am a long horizontal bar located on the top of the Excel window
                       that shows the name of the current workbook.                                  ................................

                    8.  I am a symbol or sign used to start a formula in Excel.                      ................................

                 D.  Write the names of the following devices:











                    1. ................................  2. ................................  3. ................................



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