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    BRIDGE BACK

                        1.  Name the part of the CPU that performs mathematical calculations.

                        2.  Which part of your body functions like a CPU?

                      Computers take input, like data and instructions and give output as information.

                      The input and results are stored in a special place called computer memory. This
                      memory keeps the data safe so it can be used again whenever needed. Let’s
                      learn more about this.

                              WHAT IS COMPUTER MEMORY?

                      Computer memory is a space where a computer stores information that it needs
                      to remember, both for a short and a long time. It functions like human memory,

                      helping the computer track its tasks. The basic unit for measuring memory is the
                      byte.

                      Computers store data using only two numbers 0 and 1. These numbers are called

                      binary digits or bits. A group of 4 bits is called a nibble, which is half of a byte. The
                      combination of eight bits makes one byte.

                      The various units for computer memory measurements are given below:

                                        Units of Memory                                     1 bit

                        8 bits                         1 Byte
                                                                                    0    1   0     1    1   0     1   0
                        1024 Bytes                     1 KiloByte (KB)

                        1024 KiloBytes (KB)            1 MegaByte (MB)

                        1024 MegaBytes (MB)            1 GigaByte (GB)                        8 bits = 1 Byte

                        1024 GigaBytes (GB)            1 TeraByte (TB)

                        1024 TeraBytes (TB)            1 PetaByte (PB)

                        1024 PetaBytes (PB)            1 ExaByte (EB)
                                                                                      The letter  A takes  the  storage
                        1024 ExaBytes (EB)             1 ZettaByte (ZB)               capacity of 1 Byte in a computer’s

                        1024 ZettaBytes (ZB)           1 YottaByte (YB)               memory.

                      8       Premium Edition-IV

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