कम्प्युटर ज्ञान – Computer Knowledge MCQ
कम्प्युटर ज्ञान – IT प्रवेश
Computer Knowledge · IT Entrance – B.Sc. CSIT, BIT & BCA · ४०५ प्रश्न
४०५ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कम्प्युटर ज्ञान: 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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The part of the CPU that fetches instructions, decodes them and directs the other units is the:
सही उत्तर: क) control unit
The control unit coordinates the whole computer by generating timing and control signals.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which unit of the CPU performs arithmetic and logical operations?
सही उत्तर: क) ALU
The Arithmetic Logic Unit (ALU) carries out arithmetic (+, −) and logical (AND, OR, comparison) operations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The stored-program concept, in which instructions and data are kept in the same memory, is associated with:
सही उत्तर: ग) John von Neumann
This design, described by von Neumann in 1945, is called the von Neumann architecture.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The Pascaline, an early mechanical adding machine of the 1640s, was invented by:
सही उत्तर: ग) Blaise Pascal
The French mathematician Blaise Pascal built the Pascaline (around 1642) to help with addition and subtraction.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Ada Lovelace is widely regarded as the world's first:
सही उत्तर: घ) computer programmer
She wrote an algorithm for Babbage's Analytical Engine to compute Bernoulli numbers, so she is called the first programmer.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Computers based on VLSI microprocessor chips belong to which generation?
सही उत्तर: क) Fourth
Fourth-generation computers (from the 1970s) use VLSI microprocessors; third-generation ones used SSI/MSI integrated circuits.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The dual of the Boolean expression A + B·C is:
सही उत्तर: क) A·(B + C)
The dual is formed by interchanging + and · (and 0 with 1) while keeping the variables uncomplemented: A + B·C becomes A·(B + C).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For the logic expression Y = (A·B)' + C, what is Y when A = 1, B = 1 and C = 0?
सही उत्तर: ग) 0
A·B = 1, so (A·B)' = 0; then Y = 0 + 0 = 0.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The Boolean expression A·(A' + B) simplifies to:
सही उत्तर: क) A·B
A·(A' + B) = A·A' + A·B = 0 + A·B = A·B.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For a full adder with inputs A = 1, B = 1 and carry-in = 1, the outputs are:
सही उत्तर: ग) Sum = 1, Carry = 1
1 + 1 + 1 = 3 = binary 11, so Sum = 1 and Carry = 1.
💬 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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