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    The Central Processing Unit (CPU) is the brain of the computer. It follows instructions,
                      solves problems and runs programs. It is a small chip placed inside the CPU box/

                      cabinet.

                      Parts of the CPU

                      The CPU has the following main parts:

                      1.  Control  Unit (CU): The Control                                      CPU
                          Unit tells the computer's memory,                                Control Unit

                          arithmetic/logic  unit  and input/
                          output devices how to respond to

                          the instructions it receives.                                    Arithmetic
                                                                         Input              Logic Unit            Output
                      2.  Arithmetic Logic Unit (ALU): The

                          Arithmetic Logic Unit is the part of
                          the CPU that does mathematical                                  Memory Unit

                          calculations and logical tasks.

                      3.  Memory Unit (MU): The memory unit stores data and instructions.

                      OUTPUT DEVICES

                      Output devices are hardware that
                      display the results of your work. These             The speed of a CPU is measured in Gigahertz

                      devices display or print data processed             (GHz), ranging from 2.0 GHz to 5.0 GHz.
                      by the computer. Let us learn about some of them.

                      Monitor

                      The monitor, also known as a display screen or Visual Display Unit (VDU), shows

                      output,  such as text,  images  and videos.  Some  common  types  of monitors  are
                      Cathode Ray Tube (CRT) monitor, Liquid Crystal Display (LCD) monitor and Light

                      Emitting Diode (LED) monitor.

                                        CRT Monitor              LCD Monitor               LED Monitor

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