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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Uncompressed CD audio uses 44.1 kHz sampling, 16 bits per sample and 2 channels. Its bit rate is:
सही उत्तर: क) 1411.2 kbps
44,100 x 16 x 2 = 1,411,200 bits per second = 1411.2 kbps.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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To digitise an analog signal without aliasing, the sampling rate must be at least:
सही उत्तर: ग) Twice the highest frequency in the signal
By the Nyquist-Shannon sampling theorem, sampling must exceed twice the highest signal frequency.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A MIDI file differs from a WAV file mainly because MIDI stores:
सही उत्तर: ग) Instructions such as notes and instruments rather than recorded sound
MIDI is a set of musical event messages that a synthesiser plays back; WAV stores the sampled audio waveform itself.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which image format uses lossy compression and is the most common for photographs?
सही उत्तर: क) JPEG
JPEG discards detail that the eye barely notices to achieve small files; PNG and GIF are lossless and BMP is usually uncompressed.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The GIF image format supports a palette of at most:
सही उत्तर: ख) 256 colours
GIF uses 8-bit indexed colour, so each image can use at most 2^8 = 256 colours.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Unlike raster (bitmap) images, vector graphics:
सही उत्तर: घ) Can be scaled to any size without losing sharpness
Vector images store shapes as mathematical descriptions (lines, curves), so they are redrawn sharply at any size.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A digital camera captures images using an image sensor of which type?
सही उत्तर: घ) CCD or CMOS
Charge-coupled devices (CCD) and CMOS sensors convert light into electrical signals for each pixel.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Drum printers and chain printers are types of:
सही उत्तर: ख) Line printers
Drum and chain printers are impact line printers that print a whole line at a time.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which printer type can print several carbon copies (multi-part forms) in one pass?
सही उत्तर: ग) Dot matrix
Impact printers such as dot matrix strike the paper, so the pressure transfers through carbon or carbonless copies.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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PostScript and PCL, used to send pages to laser printers, are examples of:
सही उत्तर: क) Page description languages
Page description languages describe text, graphics and layout of a page for the printer to render.
💬 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।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
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