Computer practice question for SSC. Select an option to check your answer, read the explanation and continue practicing.
Which of the following is a lever that can be moved in several directions to control the movement of an image on a computer monitor or similar display screen?
Correct Answerसही उत्तर
C. JoystickC. जॉयस्टिक
Explanationव्याख्या
The correct answer is Joystick.
According to the source, a joystick is an input device consisting of a lever that can be moved in several directions to control the movement of an image on a computer monitor or a similar display screen.
Therefore the complete source-supported revision chain is: Joystick — Input Device — Lever — Moves in Several Directions — Controls Movement of an Image on a Monitor or Similar Display.
MIDI Devices, Optical Mark Reader and Visual Display Unit are distractors in the original question.
The definition itself provides the main clue: a movable lever used to control on-screen movement.
Students should connect this question with other input-device questions in the same section, such as Light Pen, Trackball and Graphics Tablet, but should preserve their separate functions.
A joystick is specifically identified by the source through its lever-based directional control.
The book does not provide details about buttons, gaming use, aviation control, sensors, axes or connection interfaces in this entry.
Therefore those details have not been added as source-derived information.
A reverse question may ask which input device consists of a lever movable in several directions; according to the source, the answer is Joystick.
Quick revision: Joystick = Lever-based Input Device = Controls Movement of an Image on Display.
Therefore option (c), Joystick, is correct.
सही उत्तर Joystick है। स्रोत के अनुसार Joystick एक input device है जिसमें एक lever होता है जिसे कई दिशाओं में move किया जा सकता है और इसके माध्यम से computer monitor या similar display screen पर किसी image की movement control की जाती है। इसलिए complete source-supported revision chain है: Joystick — Input Device — Lever — Several Directions में Movement — Screen पर Image Movement Control। MIDI Devices, Optical Mark Reader और Visual Display Unit distractors हैं। Question की definition ही सबसे बड़ा clue है: ऐसा lever जो different directions में move होकर on-screen movement control करे। इसी section में Light Pen, Trackball और Graphics Tablet जैसे अन्य input devices भी आते हैं, इसलिए students को सभी devices के specific functions अलग-अलग याद रखने चाहिए। Source Joystick को specifically lever-based directional control device के रूप में identify करती है। Book इस entry में buttons, gaming applications, aviation, axes, sensors या connection interfaces की details नहीं देती। इसलिए outside technical information को source-derived fact की तरह नहीं जोड़ा गया है। Reverse question हो सकता है: कई directions में move होने वाला lever-based input device कौन-सा है? Source के अनुसार उत्तर Joystick है। Quick revision: Joystick = Lever-based Input Device = Display पर Image Movement Control। इसलिए विकल्प (c), Joystick, सही उत्तर है।
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