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| Components of Computer |
1. Input devices
The data instructions given to the computer is the input. Input device refers to a hardware element that is used to input data and commands into a computer.
Use input devices are keyboard mouse microphones cannot digital camera and PC camera.
Keyboard
Keyboard is used to enter text. It has keys for entering several types of data, including alphabetic and numeric ones.
Mouse
The mouse serves as a pointing device, manipulating the pointer on the screen. Users issue instructions to the computer via the mouse. It has buttons to complete particular tasks like opening a program.
Microphone
Using microphone, we can enter voice in computer.
Scanner
A scanner is a device that scans printed text and graphics,
converting the information into digital format.
Digital camera
We can capture and store picture in digital form through digital camera.
Webcam
Webcam is a PC video camera. It is used to capture videos and photos on the computer. It is also used to make video phone calls on internet.
2. Output device
Output device refer to hardware element that is used to show information to the user.
Monitors, printers, and speakers are the most frequently used output devices. Output refers to the data that has been transformed into valuable information.
Monitor
We used Monitor for displaying text, graphics and video output.
Printer
Using Printer, we can display printed output on paper.
Speaker
We can hear sound, music and voice outputs using speaker.
3. System Unit
A system unit is a casing that contains the various electronic parts of a computer that are used for data processing. The motherboard is connected to the electronic parts of the system unit. Other
names for a motherboard include system board and main board. Motherboard is
the medium of communication for computer
system.
4. Storage devices
Storage devices are hardware components utilized for
permanently storing data, instructions, and information. They are also referred
to as non-volatile since their contents remain intact (secure) when the computer is
powered off. Some
examples of devices are USB flash drive, hard disks and optical disc etc.
