[ Invention & Inventors ]

झारखंड में आयोजित होने वाली JPSC, JSSC, JET, झारखंड पुलिस भर्ती परीक्षा आदि के लिए उपयोगी सामान्य अध्ययन।

[ Invention & Inventors ]

Useful GK for JPSC, JSSC, JET, Jharkhand Police and other exams.
281. NOTEBOOK
281.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Epson
व्याख्या: Early portable computing device
Correct Answer:
Explanation: Important question.
282. TABLET
282.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Apple (iPad)
व्याख्या: Touch based portable device
Correct Answer:
Explanation: Important question.
283. KEYBOARD
283.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Christopher Latham Sholes
व्याख्या: QWERTY keyboard inventor
Correct Answer:
Explanation: Important question.
284. MOUSE
284.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Douglas Engelbart
व्याख्या: Pointing device inventor
Correct Answer:
Explanation: Important question.
285. SCANNER
285.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Ray Kurzweil
व्याख्या: Optical document scanner
Correct Answer:
Explanation: Important question.
286. JOYSTICK
286.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: CB Tillman
व्याख्या: Game control device
Correct Answer:
Explanation: Important question.
287. MICROPHONE
287.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Emile Berliner
व्याख्या: Sound input device
Correct Answer:
Explanation: Important question.
288. PRINTER
288.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Chester Carlson
व्याख्या: Xerography printing technology
Correct Answer:
Explanation: Important question.
289. INKJET PRINTER
289.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Hewlett Packard (HP)
व्याख्या: Modern inkjet printing system
Correct Answer:
Explanation: Important question.
290. LASER PRINTER
290.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Gary Starkweather
व्याख्या: Laser printing technology
Correct Answer:
Explanation: Important question.