Eiman.pk has uploaded detailed information on input devices and their types including Keyboard, Pointing Devices, Barcode Reader etc
What are Input Devices?
“Input devices are hardware components that allow users to interact with a computer or other electronic device.”
. These devices allow users to input data, commands, and other information into the system, which is then processed by the computer’s central processing unit (CPU).
Types of Input Devices
There are many different types of input devices, each with its own unique set of features and capabilities.
Keyboard: The keyboard is one of the most commonly used input devices. It is used for typing text and numbers, as well as for inputting various commands and shortcuts. Keyboards come in many different forms, including wired, wireless, and virtual keyboards.
1- Pointing Devices
Pointing devices are input devices that are used to move the cursor or pointer on a computer screen.
Mouse: The mouse is another common input device that is used to navigate the graphical user interface (GUI) of a computer. It is used to move the cursor on the screen, select items, and perform other tasks. Mice can come in a variety of forms, including mechanical, optical, and trackball.
Joystick: A joystick is an input device that is used to control movement in video games and other applications. It is typically used for gaming, but can also be used for other types of applications such as industrial control systems and flight simulators.
Trackball: A trackball is a pointing device that is similar to a mouse, but it uses a ball that is located on top of the device. The ball is rotated and moved with the fingers to move the screen’s cursor. Trackballs are often used by people who have difficulty using a traditional mouse.
Graphics Tablet: A graphics tablet, also known as a drawing tablet, is an input device that digital artists and designers use. It allows users to draw and sketch directly on the tablet surface, which is then translated into digital form on the computer screen.
Touchpad: A touchpad is a pointing device that is integrated into the keyboard of a laptop computer. It is used in place of a mouse and allows users to navigate the GUI of the computer. Touchpads use finger gestures to control the cursor and perform other tasks.
Microphone: A microphone is an input device that is used to capture audio. Microphones can be used for a variety of purposes, such as recording music, making phone calls, and dictating text.
Scanner: A scanner is an input device that is used to convert physical documents, photographs, and other materials into digital form. Scanners can be used to create digital copies of documents, photographs, and other materials.
Camera: A camera is an input device used to capture still images and videos. Cameras can be used for a variety of purposes, such as taking photographs, recording videos, and creating digital art.
6- Barcode Reader
Barcode reader: A barcode reader is an input device that is used to read barcodes. These devices use lasers or cameras to read the black and white lines that make up a barcode, which is then converted into a digital form that can be read by the computer.
In conclusion, input devices play a vital role in the functioning of computers and other electronic devices. They enable users to input data, commands, and other information into the system, which is then processed by the computer’s central processing unit (CPU). With the development of technology, input devices are becoming more advanced, versatile, and user-friendly. Each device has its own unique set of features and capabilities, and the choice of input device depends on the specific needs and requirements of the user.