कम्प्युटर आधारभूत ज्ञान र हार्डवेयर – Computer Fundamentals & Hardware MCQ
कम्प्युटर आधारभूत ज्ञान र हार्डवेयर – कम्प्युटर र IT
Computer Fundamentals & Hardware · Computer & IT (Technical) · ५७४ प्रश्न
५७४ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कम्प्युटर आधारभूत ज्ञान र हार्डवेयर: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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A thermal inkjet printer ejects droplets of ink by:
सही उत्तर: क) heating the ink so that a tiny vapour bubble pushes a droplet out
In thermal (bubble-jet) printers a heater vaporises a little ink and the expanding bubble forces a droplet from the nozzle; piezoelectric printers use a vibrating crystal instead.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a laser printer, the image of the page is first formed as an electrostatic pattern on the:
सही उत्तर: ख) photosensitive drum
A laser discharges selected areas of the charged photosensitive drum; toner sticks to this pattern before being transferred to paper.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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ENIAC was originally built for the US Army mainly to:
सही उत्तर: क) calculate artillery firing tables
ENIAC was funded to compute ballistic (artillery firing) tables for the US Army's Ballistic Research Laboratory.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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ENIAC, the large first-generation computer completed in the mid-1940s, contained approximately how many vacuum tubes?
सही उत्तर: ग) About 18,000
ENIAC used roughly 17,500-18,000 vacuum tubes, weighed about 27 tonnes and occupied a large room.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The processor performance measure MIPS stands for:
सही उत्तर: क) Million Instructions Per Second
MIPS counts how many millions of machine instructions a processor executes per second.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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One picosecond is equal to:
सही उत्तर: ख) 10^-12 second
Pico means 10^-12; milli, micro, nano and pico are successive factors of 1000 smaller.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the binary convention, one exabyte (EB) is equal to:
सही उत्तर: ख) 1024 petabytes
The order is TB, PB, EB, ZB, with each unit 1024 times the previous, so 1 EB = 1024 PB.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Under the IEC binary prefixes, one kibibyte (KiB) is equal to:
सही उत्तर: ग) 1024 bytes
The IEC prefix 'kibi' means 2^10, so 1 KiB = 1024 bytes, while 1 kB in SI is 1000 bytes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Hard disk manufacturers usually state capacity in the decimal (SI) convention, in which 1 GB equals:
सही उत्तर: ख) 10^9 bytes
In SI units giga means 10^9, which is why a 500 GB disk shows less space when the operating system uses 2^30-byte gigabytes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the binary convention, one megabyte (MB) contains how many bytes?
सही उत्तर: घ) 1,048,576
1 MB = 1024 KB = 1024 x 1024 bytes = 1,048,576 bytes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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