Internal And External Component part 4(Keyboard ,Mouse ,Joystick)

 

 

Keyboard

Input device to enter any data and instruction into character, number & special symbols.

A data input device is associated input device wont to enter characters and functions into the pc system by pressing buttons, or keys. it's the first device wont to enter text. A keyboard generally contains keys for individual letters, numbers and special characters, similarly as keys for specific functions
Type of keyword, QWERTY, AZERTY, QWERTZ and HCESAR, however, they'll be classified in more totally different classes looking on kinds of pc connection, size, a variety of keys etc
There area unit 2 major kinds of pc keyboards:

1. Basic the fundamental keyboard contains 104 keys and is enough to perform all the functions which will be done on a Windows laptop
2. Extended.. The Extended keyboard could have further keys, and therefore the style varies among the businesses producing them

Type of Keyboard

Mouse A pointing devices to easy handling of  Window application     E.g.-menu selection, select an option A mouse may be a hand-held inform device won't to position a pointer on a display screen. this enables the user to pick out things hold on on a pc and, afterward, perform actions on those things Type of Mouse WIRELESS MOUSE: The Mouse while not wire or twine is named.  STICK MOUSE: ... OPTICAL MOUSE: ... An electronic device MOUSE: ... MECHANICAL MOUSE OR BALL MOUSE       Type of Mouse   Joystick     A Gaming device to play games very accurately. In computers, a joystick may be a pointer management device employed in pc games and helpful technology. The joystick, that got its name from the lever utilized by a pilot to manage the ailerons ANd elevators of a heavier-than-air craft, maybe a hand-held lever that pivots on one finish and transmits its coordinates to a figure Joysticks are usually accustomed management video games, and typically have one or additional push-buttons whose state also can be scan by the pc.