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    Handicrafts & Carpets                                    Related Theory for Exercise 1.3.12
                Hand Embroidery Artisan - Designing by using CAD

                Introduction to computer

                Objectives: At the end of this lesson you shall be able to
                •  define computer and explain its various parts
                •  explain the functions of computer
                •  list the uses of computer.

                Definition of a Computer                               Fig 3

                A Computer is an electronic machine that is designed for
                storing and processing the information and it performs
                several arithmetic and logical operations according to
                the set of predefined instructions.
                Parts of a Computer
                Let’s see the basic parts that any computer can possess.

                Monitor: A monitor looks like a TV which displays the
                information on the computer screen. (Fig 1)

                 Fig 1                                                 Fig 4

                                                                      Speakers: Speakers are the devices which make us
                Keyboard: You might have seen a board in front of the   hear the sounds. (Fig 5)
                monitor screen. It is a keyboard which contains several   Fig 5
                keys with alphabets and numbers written on it. (Fig 2)
                 Fig 2

                                                                      Webcam: A Webcam is a camera device which captures
                                                                      images and videos streams through a computer network.
                Mouse:  A computer mouse is a small movable device    (Fig 6)
                similar to a mouse. When you move the mouse, you are   Fig 6
                able to see an arrow (cursor) movement on the monitor
                display. A mouse is usually kept on the left side of the
                keyboard. (Fig 3)
                CPU: A CPU, also called the central processing unit,
                looks like a black cuboid box. It is Brain of the computer
                because it stores the information, takes input and
                processes to give the desired output. (Fig 4)

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