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Computers—Storage and



                      Memory Device
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                         Learning Outcomes


                             Data and Information                        Memory

                             Measuring the Computer’s Memory



                 In your previous classes, you have learnt tables, addition, subtraction, etc. It was your
                 memory that saved all the information for you in your brain which acted as a storage device.

                 Similarly, computers also have memory to store all the data and instructions for performing
                 various tasks and functions. Let us learn what is memory and its function.

                  i +  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 can
                 be called information.

                  i +  MEMORY

                 The storage space in a computer is called memory. The data and instructions that are
                 entered into the computer using input devices are stored inside the memory. There are
                 two types of memory: Primary memory and Secondary memory.

                                                              Memory





                                Primary Memory                                    Secondary Memory

                 Primary Memory

                 This is the main memory of a computer. CPU can directly access this memory. It is fixed
                 on the motherboard of a computer. Primary memory is further divided into two types:
                 1.  Random Access Memory (RAM)
                 2.  Read Only Memory (ROM)



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