Keyboard:
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Keyboard |
A Keyboard is the most common input device. Several kinds of keyboard are available, bit they resemble each other with minor variations. The keyboard in most common use is the QWERTY board. Generally standard keyboards has 104 keys. In these keyboard, the cursor control keys are duplicated to allow easier use of the numeric pad.
Mouse:
A mouse is an electro-mechanical, hand-held device. It is used as a pointer. It can perform functions like selecting menu commands, moving icons, resizing windows, starting programs, and choosing options.
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Mouse |
The most common mouse uses an internal, magnetically coated ball, to detect the movement of the mouse across a flat surface, usually a desktop. Now a days Optical or laser mouse is used to detect the movement. All windows based applications today are designed to work with a mouse. A mouse is used to replace hard-to remember key combinations with easier "Pointer and click" actions. However, it cannot substitute all keyboard operations. It can be alternative for commands based operations.
