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| What is keyboard in computer |
What is keyboard in computer
Keyboard is an input Device.The keyboard is a just like typewriter device in which buttons are given to enter information in the computer, but the buttons which are given on it is called keys.Who invented the keyboard?
Christopher Latham Sholes was An American inventor who invented the first practical typewriter and QWERTY keyboard that is still in use today.Types of Computer Keyboard
According to design
Wired or wired keyboard - Wired or wired keyboard, keyboards come in two types, one is PS / 2 keyboard and second is USB keyboard. And it is connected by a wire to the computer.Wireless or Wired Keyboard - This keyboard is less expensive than a wired keyboard and uses a battery or cell to connect it to the computer. A USB receiver comes with a radio frequency (Radio Frequency) is the receiver that sends the received signal from the keyboard to the computer.
According to work
Typing Keyboard - This is a simple keyboard that allows typing.Multimedia Keyboard - These are keyboards in which typing keys as well as special keys like multimedia keys are given separately like volume keys, play pause forward Some multimedia boards have multimedia keys as well as internet keys such as Home button etc.
Why is a keyboard called a QWERTY keyboard?
The modern keyboard is derived from the old typewriter. If you look closely, the letters of the keyboard begin with QWERTY. When Christopher Latham Sholes was working on an ABCD serial type writer, he discovered a flaw,Since in typewriter the buttons are pressed with the help of a metal rod and when the buttons are placed in a straight sequence i.e. ABCDEF format, the buttons are jammed and are difficult to press due to the succession.
Because of which it was impossible to type quickly and at that time there was no backspace button in the typewriter. This is why QWERTY words were used in your keyboard to make typing easier.
Information about the keyboard
How many keys does the keyboard have
Nowadays, everyone is designing their own keyboard, but if seen, a simple keyboard has 101 keys, but the special keys have increased their number.What sort of "keys" does a personal computer keyboard have?
- Typewriters Key
- Function Keys
- Cursor control keys
- Modifier key
- Toggle keys
- Special Keys
Typewriters Key
This is the main part of the board, it is mainly used to do typing work, we can type in any language, for this we only have to change the font in the computer, it contains letters, punctuation marks. , And the symbol keys are also included, on the right side of the keyboard is the numeric keypad with keys similar to the calculator.Some of these keys do two things. Nam lok key is used to interchange both functions of numeric keys. For example - the key containing the number 7 works only as a home key. When moist folk come off. When Nam Lok Ki Aan comes. So 1,2,3,4,5,6,7,8,9,0 identified keys serve as numeric keys. On pressing any of these, a number appears on the screen.
Function Keys
A line at the top of the typewriter key ranges from F-1 to F-12. While working on any software, they are used in different ways according to the list given in the same software.Cursor control keys
These keys control the computer's cursor, so that you can move the cursor up, down, left, right easily, it is displayed with an arrow mark on the board. A few more cursor control keys are also present just above the arrow keys on the keyboard. It is as follows-Enter keys - Enter key is also called a return key. It is mainly used for two purposes. First, it informs the PC that you have left the instruction. Hence, process or execute the instructions given there. When using the second Microsoft Word program, a new paragraph or entry starts when you press the enter key.
Tab keys - Moves the cursor to a predefined position. Through this, you can start paragraphs and write columns, text or numbers in a straight line. In some software, it helps to move from one option to another in the menu.
Delete keys - You can delete the character or space written on the right side of the cursor by pressing it.
Back Space - By pressing it you can erase the left and left letter of the cursor. By doing this, the cursor returns to the left side, erasing the typed letter at the end.
Page Up keys - These are used to go to the previous page of the document.
Page Down keys - They are used to move to the next page.
Home Key - It is used to bring the cursor to the beginning of the line.
End Key - This key moves the cursor to the end of the line.
Modifier key
Shift Keys - If you press any letter by pressing it, it will be typed in upper case letter only. This action will be reversed if the caps are in the position of lock on. When two symbols or characters are created on one key, pressing the Shift key will show the upper symbol on the screen.Ctrl and Alt keys - Control and alt keys are often used in conjunction with other keys to perform certain tasks. Like - control and C one you return to the dose prompt. By pressing the control alt and delete keys simultaneously, the machine restarts itself.
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