5 Questions
Explain the function of an input device in relation to a computer system.
An input device enables the user to send data, information, or control signals to a computer. The Central Processing Unit (CPU) of a computer receives the input and processes it to produce the output.
List and briefly describe four types of input devices mentioned in the text.
Keyboard: used to enter data by pressing keys. Mouse: used to move the cursor and select items on the screen. Scanner: used to convert physical documents or images into digital format. Joystick: used for gaming or controlling objects on a screen with a stick or lever.
What are MICR and OCR, and how are they used as input devices?
MICR (Magnetic Ink Character Recognition) is used to read special characters printed with magnetic ink, commonly used in banking. OCR (Optical Character Reader) is used to scan and convert printed or handwritten text into digital format, commonly used in document scanning.
Explain the purpose of a digitizer as an input device.
A digitizer is used to convert analog information, such as drawings or handwriting, into digital format. It captures the position or motion of an object and translates it into a digital signal for the computer to process.
Provide three examples of biometric devices and explain their function as input devices.
Examples of biometric devices: fingerprint scanner, iris scanner, and facial recognition system. These devices capture unique biological traits of an individual and convert them into digital data for authentication or identification purposes.
Test your knowledge of input devices with this quiz! Challenge yourself with questions about keyboards, mice, scanners, joysticks, and other popular input devices used to send data and control signals to a computer.
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