Features of keyboard which use to operate computer

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As you know keyboard is one of the important parts of computer with the help of keyboard, we send instruction to computer to perform operation.


The keyboard is an Input device. It is mainly used to enter commands, text, numerical data and other types of data in computer. In order to interact with a user computer, input devices such as keyboard and mouse are used.


After this, the entered data is converted into machine language so that the CPU can understand the data and instructions that are coming from the input devices. 


How is the keyboard connected to the computer


If we talk about time first then PS / 2 or serial connector was used to connect the keyboard with the computer. But if I talk about now, then USB (universal serial bus) and wireless connectors are used. It has now become very easy to connect them.


The disadvantage of Wireless Keyboard is that in this we have to change the battery again and again. Otherwise, it is more portable than other keyboards 


Keyboard types - Types of Keyboard


There are many different types of keyboard layouts which are manufactured according to region and language. Today I am going to tell you about those types. 


QWERTY: This layout is used the most in the world and it has been named according to the first 6 letters, which you can see in the earlier top row. It is used in almost all countries. 


AZERTY: It has been developed in France, QWERTY layout according to another variation and is also considered as standard French keyboard. 


DVORAK: This layout is designed to reduce finger movement so that it can be typed more quickly and fast than QWERTY and AZERTY keyboard. 


If I talk about now, then the keyboards that are used in the present time are mostly 'QWERTY'.


Keyboard button information


In the keyboard of a computer many letters, numbers, symbols and commands are placed in the shape of a button and each of these belong to some specific category.


So, if you know which category belongs to which key, then you can easily know about their function. 


Some keyboards have special keys, whereas others do not, but all keyboards have the same alphanumerical keys. 


Alphanumeric Keys


All keyboards have a set of keys which is called alphanumeric keys. This term "alphanumeric" means either letters or numbers, but no symbols or command keys.

These number keys are present in two different parts of the keyboard. One on top of these letters and the other on the right of these letters.

These number keys which appear above the letters are double of the symbol keys. 

If you press the Shift button and hold the number then whatever symbol will be in that number key will be typed. The top row of the keyboard consists of letters such as " Q, W, E, R, T and Y ". That is why keypads in cell phones are called QWERTY Keypads. 


Punctuation Keys


Punctuation keys are called those which relate to punctuation marks. For example, "comma key," "question mark key," "colon key" and "period key."


All these keys are located on the right side of the letter keys. Just like the number keys, if you hold the punctuation key and press shift then you can use another function. 


Navigation Keys


In the keyboard, navigation keys are visible between letter keys and numbers keys and they are also to the right of the keyboard. Navigation keys mainly consist of four arrows: up, down right and left. 


These keys move cursor like a mouse in the display screen. With this, you can use these navigation keys to scroll the website history. 


Command Keys or Special Keys


Command keys are called keys that give commands such as on "delete," "return" and "enter." It depends on your keyboard whether there are special keys in it or not. For example, for lowering the volume up, for moving videos back and forth. The other special keys are " caps lock key," "shift key" and " tab key." 


Types of Keys


Here, I will give you information about different types of keys in the keyboard and will also talk about their use. In a normal keyboard, the keys are divided into the following six categories based on function. Whose description is as follows.


1. Function Keys


Function Keys is at the top of the keyboard. These are written from F1 to F12 in the keyboard. Function Keys are used to perform a particular task. They have a different function in every program. 


2. Typing Keys


These keys are most commonly used. Typing keys include both types of keys (alphabet and numbers), collectively called Alphanumeric keys. Typing keys also include all types of symbols and punctuation marks. 


3. Control Keys


These keys are used alone or with other keys to perform a certain task. In a normal keyboard, most of the Ctrl key, Alt key, Window key, Esc key are used as control keys. Apart from these, keys like Menu key, scroll key, Pause Break key, PrtScr key etc. are also included in the control keys. 


4. Navigation Keys


Navigation keys contain Arrow keys, Home, End, Insert, Page Up, Delete, Page Down etc. They are used to move around in any document, webpage etc.


5. Indicator Lights


There are three types of Indicator light in the keyboard. Num Lock, Scroll Lock and Caps Lock. When the first light in the keyboard is lit, it means that the Numeric Keypad is turned on, and if it is closed it means that the Numeric Keypad is off. Secondly, light indicates to us about Uppercase and Lowercase of letters. 


When it is closed, the letters are in the lowercase, and when it is moving, the letters are in the uppercase. The third, known as Scroll Lock. This indicates to us about scrolling. 


6. Numeric Keypad


We can also call them Calculator keys, because a numeric keypad has almost the same (some extra) keys as a calculator. They are used to write numbers.


How many buttons does the keyboard have?


  • Key/Symbol      Explanation
  • Windows           Looks like a four-pane window
  • Command         Apple Mac 
  • Esc                    Esc (Escape) key
  • F1 - F12            Information key
  • F13 - F24          Information key
  • Tab                   Tab key
  • Caps lock          Cap’s lock key
  • Shift                  Shift key
  • Ctrl                   Ctrl (Control) key
  • Fn                     Fn (Function) key
  • Alt                    Alt (Alternate) key 
  • Spacebar          Spacebar key
  • Arrows             Up Down Left Right Arrow keys
  • Back Space      Back space (or Backspace) key
  • Delete              Delete or Del key
  • Enter                Enter key
  • Prt Scrn            Print screen key
  • Scroll lock       Scroll lock key
  • Pause               Pause key
  • Break               Break key
  • Insert                Insert key
  • Home               Home key
  • Page up            Page up or pg up key
  • Page down       Page down or pg dn key
  • End                  End key
  • Num Lock       Num Lock key

Symbol Keys

  • ~       Tilde
  • `       Acute Back quote
  • !        Exclamation mark Exclamation point or Bang
  • @      Ampersat Arobase Asperand At or at symbol
  • #       Octothorpe Number Pound sharp or Hash
  • £       Pounds Sterling or Pound symbol
  • €       Euro
  • $       Dollar sign or generic currency
  • ¢       Cent sign
  • ¥       Chinese/Japenese Yuan
  • §       Micro or Section
  • %      Percent
  • °       Degree
  • ^      Caret or Circumflex
  • &      Ampersand Epershand or And
  • *      Asterisk mathematical symbol 
  • (       Open parenthesis
  • )       Close parenthesis
  • –      Hyphen Minus or Dash
  • _      Underscore
  • +      Plus
  • =      Equal
  • {      Open Brace squiggly brackets 
  • }      Close Brace squiggly brackets 
  • [       Open bracket
  • ]       Closed bracket
  • |       Pipe Or or Vertical bar
  • \       Backslash or Reverse Solidus
  • /       Forward slash 
  • :       Colon
  • ;       Semicolon
  • “       Inverted commas
  • ‘       Apostrophe or Single Quote
  • <      Less Than or Angle brackets
  • >      Greater Than or Angle brackets
  • ,       Comma
  • .       Period dot or Full Stop
  • ?      Question Mark


Some of the main control keys and their usage


1. Esc Key


Esc Key is used to cancel any currently running task. Its full name is Escape Key.


2. Ctrl Key


The full name of Ctrl Key is Control Key. It is used in Keyboard Shortcuts.


3. Alt key


Alt key is full name Alter Key, it is also used in Keyboard Shortcuts.


4. Window Logo Key


This key is used to open the Start Menu.


5. Menu Key


Menu Key works in the same way as Mouse's Right Click. It opens the options related to a selected program.


6. PrtScr Key

This key is used to take the image of PrtScr Key Computer Screen.


Use of Navigation Keys


1. Arrow Keys


Arrow Keys are four- Up Arrow, Down Arrow, Left Arrow and Right Arrow. They are used to move cursor and webpage in the direction of Arrows.


2. Home Key


Home Key is used to bring cursor to the beginning of any document. With this help, a Webpage and Document can come at once.


3. End Key


End Key is used to bring cursor to the end of a document. With the help of this, a webpage and document can go down at once.


4. Insert Key


Insert Key is used to turn Insert mode on and off.


5. Delete Key


Delete Key is used to delete text after Cursor, selected text and files and folder.


6. Page Up Key


Page Up Key is used to move the Cursor and a page upwards.


7. Page Down Key


Page Down Key is used to move the Cursor and a page down.


Using Numeric Keypad, the numeric keypad is on the right side of the keyboard. It has numbers from 0 to 9. In addition, there are also sign of addition, subtraction, division, multiplication and decimal sign.


Numeric Keypad is used to write numbers. These numbers are also located elsewhere in the keyboard, but they can be written quickly with the Numeric Keypad. 

Apart from this, Numeric Keypad can also be used like Navigation Keys. Num Lock must be on to use the Numeric Keypad.




Q: How many function keys does the keyboard have?


A: Today’s traditional PC keyboards have 12 function keys, from F1 to F12. There are 19 function keys in Apple desktop computer keyboards, F1 to F19.


Q: How many keys does a numeric keypad have?


A: Most desktop computer keyboards have a numeric keypad, and if you count all the numbers and symbols then there are 17 keys in it, while the Apple keyboard has 18 keys.


Due to the small screen of laptops, they usually do not have a numeric keypad.


Q: How many number keys does the keyboard have?

A: keyboard consists of 10 number keys, from 1 to 0.


Q: How many alphabetic keys does the keyboard contain?

A: keyboard consists of 26 alphabetic keys.


Q: How many symbols are there in the keyboard?

A: An English QWERTY keyboard has approximately 40 symbols (eg, @, #, $, and% that do not contain letters and numbers) above 28 keys. This difference is because some keys have more than two symbols. 


If we calculate from the beginning, then there are about six rows of keys. Three of these rows contain alphabetic letters.


We hope information about what the keyboard useful and help to access keyboard easily.




We hope that this information about the different types of keyboards can help you to select the right keyboard as per your requirement which can make your job more convenient and your work task simple and effective.  

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