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B.  Fill in the blanks.

                     1.  A computer accepts data and instructions from you through ................................ .
                     2.  The octal number system consists of ................................ digits.

                     3.  A set of programs that identify and remove malware is known as ................................ software.

                     4.  ................................ is an unwanted email from a company for advertisement of its products,
                        also called as bulk email.
                     5.  ................................ bar is used to enter and edit formulas and perform calculations on your
                        worksheet data.

                     6.  We can apply a style to the cells by using the ................................ command in the Styles
                        group under the Home tab.


                 C.  Write ‘T’ for true and ‘F’ for false.
                     1.  Mouse is the brain of a computer.                                           ................................

                     2.  The base of the decimal number system is 10.                                ................................
                     3.  We cannot remove a worm from a computer.                                    ................................

                     4.  Software piracy means using software without purchasing it.                 ................................

                     5.  Data cannot be entered in an active cell.                                   ................................
                     6.  We cannot select more than one cell at a time in an Excel worksheet.        ................................


                                                             Section B


                 A.  Short answer type questions.
                     1.  Can the mouse and keyboard be wireless?

                     2.  How many bits are there in 1 nibble?
                     3.  What is the meaning of the term ‘Eradicating a virus’?

                     4.  What is cyberbullying?
                     5.  What is an active cell?

                     6.   Can we unmerge the merged cells? If yes, write the name of the command used to do so.


                 B.  Long answer type questions.
                     1.  What is SMPS?

                     2.  Convert (1111)  to a decimal number.
                                       2
                     3.  What is a computer virus? Write the names of any two types of computer viruses?

                     4.  What is plagiarism? Write any two ways to prevent plagiarism.

                     5.  What is the difference between a workbook and a worksheet?
                     6.  How will you change the row height and column width?




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