2. Computer Hardware
Computer hardware refers to the physical parts or
components of computer such as keyboard, mouse, hard
disk, etc. It can be classified into five categories, but I am
going to talk about input devices such as, keyboard,
mouse, touchpad, microphone and Webcam.
3. KEYBOARD
Keyboard is the main input device of a computer. It is
used to input text, characters and other basic commands,
like copy, paste, move to next line, highlight, etc.
4. MOUSE
Mouse is an input device that allows the user to move
the cursor on the display screen, ‟point and click” or
‟drag and drop”.
5. TOUCHPAD
Touchpad is a pointing device that is used in laptops and
notebooks. It has a tactile sensor screen that can sense
pressure of a finger, and translate relative position and
motion of the finger on the screen.
6. MICROPHONE
Microphone is an input device that enable users to input
audio into a computer. It is used for voice recognition,
computer gaming, etc.
7. WEBCAM
A webcam is an input device that is able to capture
images and videos and input them into a computer.
It act as a digital camera and video camera for
laptops and other personal computers.