Input/Output — Set 5
Computers · इनपुट/आउटपुट · Questions 41–50 of 70
What 'GEMS' term is used for the process of sending data from a computer to a user?
Correct Answer: C. Output
Output is the result of computer processing presented to the user through various devices. It can be in the form of text, sound, or graphics. The most common output device is the computer monitor.
Which 'GEMS' device is used to enter instructions and data into a computer system?
Correct Answer: D. Input Device
Input devices allow users to communicate with the computer and provide data for processing. Keyboards and mice are the most fundamental examples of input devices. Without input devices, a computer cannot receive any tasks to perform.
A 'GEMS' device used to read credit card information by swiping is called a?
Correct Answer: A. Magnetic Stripe Reader
Magnetic stripe readers extract data from the magnetic band found on the back of credit and debit cards. The band contains encoded information about the account holder. This technology is widely used in Point of Sale (POS) terminals.
Which 'GEMS' output device is used by people who cannot see to read computer text?
Correct Answer: C. Braille Embosser
A Braille embosser is a special printer that creates raised dots on paper for tactile reading. It allows visually impaired users to get a physical copy of digital documents. It works in conjunction with screen-reading software.
The 'GEMS' pointing device consisting of a vertical handle and buttons is a?
Correct Answer: A. Joystick
A joystick provides a physical handle that can be moved in various directions to control an object on the screen. It often features a 'fire' button for gaming purposes. It is a classic input device for simulators and arcade-style games.
Which 'GEMS' printer produces images by spraying tiny droplets of liquid ink onto paper?
Correct Answer: D. Inkjet
Inkjet printers are very common for home use because they can produce high-quality color photos. They use replaceable ink cartridges containing different colors. This technology is generally quieter than impact printers.
What 'GEMS' input device is used to create digital signatures or handwritten notes on a screen?
Correct Answer: A. Stylus
A stylus is a pen-shaped instrument used with touchscreens or graphics tablets for precision input. It allows for natural writing and drawing motions. Active styluses can even detect different levels of pressure.
The 'GEMS' output device that displays a computer's desktop environment is the?
Correct Answer: D. Monitor
The monitor is the primary visual interface between the user and the computer's operating system. It allows the user to see the cursor, icons, and windows. The screen size is usually measured diagonally in inches.
Which 'GEMS' input device allows a user to speak commands to the computer?
Correct Answer: D. Microphone
A microphone captures audio input, which can be interpreted by voice recognition software as commands. This technology is used for virtual assistants and dictation. It is a key component for accessibility and hands-free operation.
The 'GEMS' term for a device that scans human eyes for security access is?
Correct Answer: D. Iris Scanner
An iris scanner is a biometric input device that uses mathematical pattern-recognition on images of the iris. It is considered one of the most accurate security measures available. It is often used in high-security government and corporate facilities.