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Computers—Storage and


                               Memory Device



                                                                                  Chapter
                                                                                   01






                             Your Aim

                             to learn about:
                                Data and Information
                                Memory

                                Measuring the Computer’s Memory




                 When you were a child, you learned about alphabets and numbers. Do you still
                 remember those? How? This is because those were stored in your memory. Just like

                 human memory, computers also have memory to store all the data and instructions
                 for performing various tasks.


                     DATA AND INFORMATION


                 In your daily life, you come across a lot of facts and figures in the form of numbers,
                 images, etc.  These are  called  data. You can  say that  a collection of raw  and
                 unorganised facts is known as data. When you organise the data and provide a

                 specific context, it is called information.


                     MEMORY

                 The data and instructions that are entered into the computer using input devices are

                 stored inside the memory of computer. There are two types of computer memory:
                 1.  Primary Memory

                 2.  Secondary Memory

                 Primary Memory

                 This is the main memory of the computer. The CPU can directly access this memory.

                 It is fixed on the motherboard of the computer.




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