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    c.   A school computer  lab stores  student  records that  must  remain saved even after the
                            computer is turned off. The storage device is not directly accessed by the CPU and is
                            cheaper than primary memory. Which type of memory is being used?

                             (i)  Primary memory                              (ii)  Secondary memory

                            (iii)  Cache memory                              (iv)  Register

                        d.   Parul is editing a video on her computer. Suddenly, there is a power failure and her unsaved
                            changes are lost. Which type of memory was most likely storing her work at that moment?

                             (i)  RAM                                         (ii)  EEPROM
                            (iii)  ROM                                       (iv)  PROM

                        e.   Amit plays a computer game and learns that the computer understands only 0s and 1s.
                            What are these called?

                             (i)  Bytes                                       (ii)  Numbers

                            (iii)  Bits                                      (iv)  Letters

                     2.  Fill in the blanks using the words from the help box.

                                700MB, SSD, Universal Serial Bus (USB), Optical, Secondary memory

                        a.   An ____________ is a type of storage device that holds information, like your pictures,
                            games and documents.

                        b.  The Blu-ray is an ____________ disc storage device.

                        c.  ____________ is the external memory of the computer that can store large amounts of
                            data permanently.

                        d.  Pen drive is connected to the ____________ port of a computer.

                        e.  Compact disc store up to ____________ of data.

                     3.  Write 'T' for true and 'F' for false.

                        a.  Computers take input as data and instructions and give output as information.

                        b.   Data written on a CD-ROM can be erased and rewritten.

                        c.   A hard disk is the main secondary storage device and is fixed inside
                            the CPU cabinet.

                        d.  Secondary memory is directly accessed by the CPU.

                        e.   Cloud storage allows data to be accessed later from any computer through
                            the Internet.

                                                                                                    Computer Memory   13

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