Page 14 - iPrime_V2.2_class4
P. 14

Reb             t


                        RAM is a temporary memory. The information stored in RAM is lost when

                        the computer is turned off.
                        Information stored in ROM is permanent in nature, i.e., it holds the data

                        even if the system is switched off.

                        The storage devices are used to store data and information for future use.

                        A hard disk covered with magnetic coating is call Magnetic disk.

                        An optical disc is an electronic data storage medium that can be written to
                        and read using a low powered laser beam.

                        The USB Flash Drive is a small portable data storage device integrated with
                        a USB (Universal Serial Bus) connector.

                        The basic unit for measuring the memory of a computer is byte.

                        Other units for measuring the computer’s memory are kilobyte, megabyte,
                        gigabyte, terabyte, and so on.







                   One Touch            Learn                                              Section A (Objective)
                    One


                  A.  Tick (3) the correct option.

                      1.  Which one of these is not a secondary storage device?


                         a. RAM                              b. DVD                        c. Pen drive

                      2.  Which one of these is used to record and erase data any number of times?

                         a. CD-ROM                           b. DVD-R                      c. CD-RW


                      3.  Which one of these is used to measure the memory of a computer?

                         a. Litre                            b. Byte                       c. Inches

                      4.  Which one of these is located inside the computer system?


                         a. Hard disk                        b. Pen drive                  c. DVD









                  12     iPRIME (Ver. 2.2)–IV
   9   10   11   12   13   14   15   16   17   18   19