PARTS OF A COMPUTER

Parts of a Computer:

                                                   Every Computer have some Important Parts .These are like a Monitor ,CPU(Basic Unit),Key Board,Mouse,Mouse Pad,Speakers and Printer .Every part of a computer do some special work .Now start we learn the parts of a Computer.

CPU(Basic Unit):

                                                                     All the inputs are stored, sorted, arranged and changed by a computer. The device that helps a computer do so is called the processing device. It is a very important part of a computer . The processing device in a computer is known as Central Processing Unit (CPU).

 Monitor:

                          A monitor looks like a TV screen. It shows whatever you type on the keyboard or draw with the mouse.It is a output device  Monitors of the early years used CRT technology for imaging, while modern computer monitors use LCD or even plasma screens. Monitors are the most-used output devices of a computer.

Key Board:

                                               The keyboard is used for entering data into the computer system. It can type words, numbers and symbols.

• Buttons on the keyboard are called keys
• Whatever you type on the keyboard can be seen on the monitor.

The keyboard and computer mouse are input devices. These are used for performing various functions. A computer keyboard has 104 keys. The keyboard has Letter keys, Number keys, Function keys, Arrow keys and Special keys. Let us learn about a few more keys on a keyboard.

Symbols Keys :

                             These keys have special sings and symbols, which are to the right of the letter keys such as: /, :, “,<, > etc.

Special Characters:

                                      The special characters are also placed over the numbers on the Number keys such as:!,  @, #, $, %, * etc.You can use these as Symbol keys by pressing the Shift key along with the Number 

Function keys:

                                 There are 12 functions keys from   F1 to  F12 at the top the keyboard. Each Function key has a different job to perform. 

Letter keys:

                            There are (A to Z) 26 letter keys in 3 rows. First row (Q, W, E, R, T, Y, U, I, O, P) 10 letters. Second row (A, S, D, F, G, H, J, K, L) 9 letters. Third row (Z, X, C, V, B, N, M) 7 letters. These are middle on keyboard. And used to typing the words

Shift Key: 

                     Shift Key is used with the other keys for different purpose.

If you press and hold the shift key along with a Letter key, it will type that letter in capital even when the Caps Lock is turned off.

For Example :

+ 1  Gives  !

+ 3 Gives #

 Tab Key:

                     You can press the tab key to move the cursor several spaces forward at once.

Escape Key:

                       The short form of Escape key is ESC. It is placed at the top left corner in most of the keyboards. This key allows us to cancel an operation.

Computer Keyboard keys Glossary :

Keyboard: This is used to enter data into the computer system.

Escape key: It allows to cancel an operation.

Function key: Each of these key have a different job to perform.

Shift key: It is used with the other key for different purposes.

Symbol keys: These have special signs and symbols.

Tab key: It moves the cursor several spaces forward at once.

  

Computer Mouse :

                                                                The mouse is a pointing device. You can give input to the computer with the help of the mouse.Along with the keyboard if you also learn how to work with a computer mouse, working on a computer would be easy.

• A computer mouse looks like a real mouse.
• It usually has two buttons and a wheel in mouse.
• The mouse is always kept on a mouse pad.

Clicking:

                To press and release the mouse button

Clicking means the pressing and releasing of the mouse buttons. It takes place after pointing at an item.

Single –Click:

                         To release the left mouse button after pressing it once is called single-click. A single-click is for selecting an item.

Double-Click: Double-Click:

                                                 To release the left mouse button after pressing it twice quickly is called double-click. A double –click opens the selected item.

Right – Click:

                               To Release the right mouse button after pressing it once,  a list of Properties of the selected item.

Computer Mouse Glossary :

Mouse: It is pointing device.

Clicking:  Pressing and releasing the mouse button to make the computer do some work.

Double-click:  To press the left mouse button twice quickly, before releasing it.

Right-click: To Press the right mouse button once different purposes.

Single-click:  To press the left mouse button once before purposes.

Mouse Pad :
                                              A mouse pad is a thin rubber or plastic cushion of about 12 square inches or less with a plastic or textured surface. A mouse pad provides better traction and more precise cursor movement for a mouse than a desktop or other surface. Sometimes, a mouse pad includes a cushion for the user’s hand or wrist.It has different shapes.

Printer:

                                   A printer prints the results of your work from the computer screen on a sheet of paper. This is called a printout.A printer is an external hardware output device that takes the electronic data stored on a computer or other device and generates a hard copy of it.

Computer Speaker:

                                                                          A computer speaker is an output hardware device that connects to a computer to generate sound. The signal used to produce the sound that comes from a computer speaker is created by the computer's sound card.It has different shapes and size.

I hope this is very helpful for you .Remember me in your prayers .

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