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4.   A group of              is called a nibble.

                                 a.  6-bits                                    b.  8-bits

                                 c.  2-bits                                    d.  4-bits


                        Fill in the blanks with the correct words.


                                               Hints  Hard disk, Zettabyte, USB, Byte


                        1.  External hard disks can be connected with the help of                ports.

                        2.  The basic unit of measuring the computer memory is called                 .

                        3.               is permanently fixed in the CPU box.

                        4.  1              equals 1024 EB.



                  Q     Answer the following questions:
                    A
                        1.  What is computer memory?




                        2.  What is a secondary memory?




                        3.  Define hard disk and pen drive.







                        4.  Differentiate between RAM and ROM.









                                                                                                   21 st
                        Scratch Your Brain.                                                      Century   #Technology Literacy
                                                                                                  Skills  #Critical Thinking
                        1.   Name these storage devices.
















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