What is keyboard and how many types are there | TechCompReviews

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 A keyboard is  an input device that uses finger-sized buttons called keys to enter or manipulate data (text or numbers) on a computer or other device.

After all, what is a computer keyboard? You must have used a keyboard. Because if you have used a computer or a laptop, then the keyboard must have been used for your typing. But there will be many of you who do not have complete knowledge about the keyboard. Therefore, understanding this post’s keyboard information in Hindi will be very helpful to those people.

So that’s why today I thought that why not provide complete information about the type of keyboard to you people so that all your doubts can be cleared. Then without delay let’s start and know what a keyboard is called.

What is a computer keyboard?

The keyboard is an input device. It is mainly used to enter commands, text, numerical data, and other types of data on the computer. A user uses input devices such as a keyboard and mouse to interact with the computer.

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 earlier times, 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 right now.

Connecting them has become very easy now. The disadvantage of Wiress Keyboard is that we have to change the battery again and again. Otherwise, it is more portable than other keyboards.

Types of Keyboard –

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

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QWERTY: This layout is used the most in the world and it has been named according to the earlier 6 letters which you can see in the earlier top row. It is often used in all countries. It is used so much that many people think that this is the only type of keyboard available.

AZERTY: It has been developed in France, according to each other variations of the QWERTY layout and it is also considered a standard French keyboard.

DVORAK: This layout is designed to reduce finger movement so that typing can be done faster and faster than QWERTY and AZERTY keyboards.

If I talk about it now, then the keyboards that are used at the present time are mostly ‘QWERTY’ .

Keyboard Full Form – Full Form of Keyboard

K  – Keys

E  – Electronic

Y  – Yet

B  – Board

O  – Operating

A  – A to Z

R  – Response

D  – Directly

Keyboard Shortcut Keys 

Ctrl + A Used to select all the content of the page.
Ctrl + C Used to copy the selected text.
Ctrl + D Bookmarks the page opened in the Internet browser.
Ctrl + F Opens the find box on the open document.
Ctrl + I Converts the selected text into italics font.
Ctrl + K Used to insert hyperlink in selected text.
Ctrl + N Opens a new blank document in the opened software.
Ctrl + O Used to open a new file.
Ctrl + P Used to print the opened page of the document.
Ctrl + S Use this shortcut to save the document.

Ctrl + U Underlines the selected text.
Ctrl + V Pastes the copied item.
Ctrl + X Removes the selected text or simply cuts it.
Ctrl + Y Repeats the previous action.
Ctrl + Z Used to reverse its last verb (undo).
Alt + F Opens the option of file menu in the opened program.
Alt + E Opens the option of edit menu in the opened program.
Alt + F4 Closes the opened program.
Alt + Tab Can switch different applications or programs opened.
Ctrl + End Arrives at the end of the opened document.
Ctrl + Del Deletes the selected item.
Ctrl + Ins Copies the selected item.
Ctrl + Home Arrives at the beginning of the opened document.
Ctrl + (Left arrow) Moves one word to the left at a time.
Ctrl + (Right arrow) Moves one word to the right at a time.
Shift + Ins Pastes the copied item.
Shift + Home Highlights from the current position of the cursor to the beginning of the line.
Shift + End Highlights from the current position of the cursor to the end of the line.
Ctrl + Shift + Esc Opens the task manager of Windows.

Keyboard button info

On the keyboard of a computer, many letters, numbers, symbols, and commands are located in the shape of buttons, and right of them belongs to some specific category. So if you come to know which category the key belongs to, then you can easily know about their function.

Some keyboards have special keys, while some do not, but all keyboards have the same alphanumerical keys.

Alphanumeric Keys

All keyboards have a set of keys called alphanumeric keys. The term “alphanumeric” means either letters or numbers, but does not contain symbols or command keys. These number keys are present in two different parts of the keyboard:

One above these letters and the other on the right of these letters. These number keys which appear above the letters are double of symbol keys. If you press the Shift button and hold the number, then whatever symbol will be in that number key, it will be typed. On the top row of the keyboard, there are letters such as ” Q,W,E,R,T and Y “. That’s why the keypads in cellphones are called QWERTY Keypads.

Punctuation Keys

Punctuation keys are called those which relate with the 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. Like the number keys, if you hold the punctuation key and press shift, then you can use another function.

Navigation Keys

In the keyboard, the navigation keys are visible between the letter keys and the numbers keys, that too on the right side of the keyboard. Navigation keys mainly have four arrows: up, down, right and left. These keys move the cursor like a mouse in the display screen. With this you can use these navigation keys to scroll the website history.

Command Keys and Special Keys

Command keys are called keys that give commands such as on “delete,” “return” and “enter.” It depends on your keyboard whether special keys are present in it or not. For example, to turn the volume up and down, to move the videos back and forth, etc. Other special keys are “caps lock key,” “shift key” and “tab key.”

Types of Keys

Here, I will inform you about the different types of keys located on the keyboard and will also tell you about their use. In a normal keyboard, the keys are divided into the following six categories on the basis of function. Whose description is something like this?

1. Function Keys

Function Keys are at the top of the keyboard. They are written on the keyboard from F1 to F12. Function Keys are used to perform a particular task. They have different functions in each program.

2. Typing Keys

These keys are used the most. Typing keys include both types of keys (alphabet and numbers), they are collectively called alphanumeric keys. Typing keys also include all kinds 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, and 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 have keys like Arrow keys, Home, End, Insert, Page Up, Delete, Page Down etc. They are used to move around in a document, webpage etc.

5. Indicator Lights

There are three types of indicator lights on the keyboard. Num Lock, Scroll Lock and Caps Lock. When the first light is on on the keyboard, it means that the Numeric Keypad is on, and if it is off, it means that the Numeric Keypad is turned off. Second, the light tells us about the uppercase and lowercase letters.

When it is turned off, the letter is in lowercase, and when it is on, the letter is in uppercase. The third is known as Scroll Lock. It prompts us about scrolling.

6. Numeric Keypad

We can also call them calculator keys because a numeric keypad has almost the same number of keys as a calculator. They are used to write numbers.

How many buttons are on the keyboard

Key/Symbol                                        Explanation
Windows PC keyboards have a Windows key that looks like a four-pane window.
Command Apple Mac computers have a command key.
Menu PC keyboards also have a Menu key that looks like a cursor pointing to a menu.
Esc Esc (Escape) key
F1 – F12 Information about the F1 through F12 keyboard keys.
F13 – F24 Information about the F13 through F24 keyboard keys.
Tab Tab key
Caps lock Caps lock key
Shift Shift key
Ctrl Ctrl (Control) key
Fn Fn (Function) key
Alt Alt (Alternate) key (PC Only; Mac users have Option key)
Spacebar spacebar key
Arrows Up Down Left Right Arrow keys
Back Space Backspace (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 in key
End End key
Num Lock Num Lock key
, Tilde
, Acute Back quote grave grave accent left quote open quote or a push
, Exclamation mark Exclamation point or Bang
, Ampersat Arobase Asperand At or At symbol
, Octothorpe Number Pound sharp or Hash
£ Pounds Sterling or Pound symbol
, A dollar sign or generic currency
¢ Cent sign
¥ Chinese/Japenese Yuan
, Micro or Section
, Percent
° Degree
, Caret or Circumflex
, Ampersand Epershand or And
, Asterisk mathematical multiplication symbol and sometimes referred to as star.
, Open parenthesis
, Close parenthesis
, Hyphen Minus or Dash
, Underscore
, Plus
, Equal
, Open Brace squiggly brackets or curly bracket
, Close Brace squiggly brackets or curly bracket
, open bracket
, Closed bracket
, Pipe or Vertical bar
, A backslash or Reverse Solidus
, Forward slash Solidus Virgule Whack and mathematical division symbol
, Colon
, Semicolon
, Quote Quotation mark or 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 Main Control Keys and Their Uses

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

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

3. Alt
Key The full name of Alt Key is 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 Right Click of the mouse. It opens the options related to a selected program.

6. PrtScr Key
This key is used to take the image of the 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 the cursor and the webpage in the direction of Arrows.

2. Home Key
Home Key is used to bring the cursor to the beginning of a document. With the help of this, a webpage and document can be started right away.

3. End Key
End Key is used to bring the 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 the text after the cursor, the selected text and files and folders.

6. Page Up Key
Page Up Key is used to move Cursor and a page up a bit.

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

Using Numeric Keypad

The Numeric Keypad is located on the right side of the keyboard. It contains numbers from 0 to 9. Along with this, there are also mathematical symbols – addition, subtraction, division, multiplication and decimal signs.

A numeric Keypad is used to write numbers. These numbers are also elsewhere in the keyboard, but they can be written quickly with the Numeric Keypad. Apart from this, Numeric Keypad can also be used as a Navigation key. Num Lock must be on to use the Numeric Keypad.

How many function keys are there on the keyboard?

Today’s traditional PC keyboards have 12 function keys, from F1 to F12. Whereas Apple desktop computer keyboards have 19 function keys, from F1 to F19.

How many keys are there in Numeric Keypad?

Most desktop computer keyboards have a numeric keypad, and if you count all the numbers and symbols, it has 17 keys, while Apple keyboards have 18 keys. Due to the small screen of laptops, they usually do not have a numeric keypad.

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