Computer Hardware Overview
Input & Output Devices, Processor, and
Motherboard
• Great for nursing and IT students learning basic computer hardware
• Useful for assignments, class tests, and practical understanding
Subject: Computer Science / Nursing Informatics / General Education
Best for: Students needing a simple yet complete overview of hardware
fundamentals
, Input Device
Definition of input device
An input device is any hardware device that sends data to a computer, allowing you
to interact with and control it.
Or
Input devices are hardware components that are used to provide data and control
signals to a computer.
Function of input device:
1. Provide data to an information processing system.
2. Provide control signals to an information processing system.
3. To direct commands and data into computers.
4. It accepts data from the user or outside the environment.
5. It converts user understandable form of data into binary code that is
understandable to the computer.
6. It sends data & instructions in binary form to the computer for further
processing.
Following are some of the important input devices which are used in a
computer-
▪ Keyboard
▪ Camella Touchscreen
▪ Mouse
▪ Joy Stick
▪ Light pen
▪ Track Ball
▪ Scanner
, ▪ Graphic Tablet
▪ Microphone
▪ Magnetic Ink Card Reader (MICR)
▪ Optical Character Reader (OCR)
▪ Bar Code Reader
▪ Optical Mark Reader (OMR)
Output Device
Definition of output device
An output device is any hardware device used to send data from a computer to
another device or user.
Or,
Output devices are hardware components that use received data from a computer to
perform a task.
Function of output device:
1. It receives or displays output from a computer.
2. To communicate the results of data processing carried out by a computer
to the outside world.
Following are some of the important output devices used in a computer.
• Monitors
• Headphones
• Graphic Plotter
• Printer
• Speaker
, • Projector
Difference between input & output device
Input & Output Devices, Processor, and
Motherboard
• Great for nursing and IT students learning basic computer hardware
• Useful for assignments, class tests, and practical understanding
Subject: Computer Science / Nursing Informatics / General Education
Best for: Students needing a simple yet complete overview of hardware
fundamentals
, Input Device
Definition of input device
An input device is any hardware device that sends data to a computer, allowing you
to interact with and control it.
Or
Input devices are hardware components that are used to provide data and control
signals to a computer.
Function of input device:
1. Provide data to an information processing system.
2. Provide control signals to an information processing system.
3. To direct commands and data into computers.
4. It accepts data from the user or outside the environment.
5. It converts user understandable form of data into binary code that is
understandable to the computer.
6. It sends data & instructions in binary form to the computer for further
processing.
Following are some of the important input devices which are used in a
computer-
▪ Keyboard
▪ Camella Touchscreen
▪ Mouse
▪ Joy Stick
▪ Light pen
▪ Track Ball
▪ Scanner
, ▪ Graphic Tablet
▪ Microphone
▪ Magnetic Ink Card Reader (MICR)
▪ Optical Character Reader (OCR)
▪ Bar Code Reader
▪ Optical Mark Reader (OMR)
Output Device
Definition of output device
An output device is any hardware device used to send data from a computer to
another device or user.
Or,
Output devices are hardware components that use received data from a computer to
perform a task.
Function of output device:
1. It receives or displays output from a computer.
2. To communicate the results of data processing carried out by a computer
to the outside world.
Following are some of the important output devices used in a computer.
• Monitors
• Headphones
• Graphic Plotter
• Printer
• Speaker
, • Projector
Difference between input & output device
