Components of Computer. Input. Any thing given to the computer is known as input such as instructions or data Converts raw data into electronic form. Input Devices: Giving Commands.
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Input devices are types of hardware that enable you to get programs, data, commands, and responses into the computer’s memory
It is used for specific purpose
Special command keysKeyboard
Function Keys F1-F12
Shift:Output a capital letter or symbol when pressed along with an alphanumeric key.Select text for editing when pressed along with cursor movement keys.Ctrl:Produces different results depending on the program you are using.Ctrl key combinations provide shortcuts for menu commands.Alt:Produces different set of resultsIn windows, Alt key combinations enable you to navigate menus and dialog boxes without using mouse.
Enhanced or Extended keyboard – Typically 101 keys laid out in the QWERTY fashion; connected to the computer by a serial cable
Cordless keyboard – Uses infrared or radio wave signals
Enhanced / Extended Keyboard
Designed to help prevent damage to nerve tissues in the wrist and hand due to repeated motion.
It enables the user’s hands to remain positioned correctly while reducing bending and strain
Designed for people who type for extended period and suffer from wrist and hand fatigue.