कम्प्युटर / सूचना प्रविधि कम्प्युटर अपरेटर (पाँचौँ तह) र सहायक – प्राविधिक पत्र
कम्प्युटर / सूचना प्रविधि – कम्प्युटर अपरेटर (पाँचौँ तह) र सहायक
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२,५७७ प्रश्न उपलब्ध। मोड छान्नुहोस्:
प्राविधिक पत्र: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ५ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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Apart from vacuum tubes for logic, many first-generation computers used which device as their main memory?
सही उत्तर: घ) Magnetic drum
Rotating magnetic drums were a common main-memory device in first-generation machines; semiconductor memory came only with later generations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The first commercial computer to come with a moving-head magnetic hard disk drive (1956) was IBM's:
सही उत्तर: घ) 305 RAMAC
The IBM 305 RAMAC (Random Access Method of Accounting and Control) used the IBM 350 disk unit, the first hard disk drive.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The computer mouse was invented in the 1960s by:
सही उत्तर: ख) Douglas Engelbart
Douglas Engelbart developed the first mouse at the Stanford Research Institute and demonstrated it publicly in 1968.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The point-contact transistor demonstrated at Bell Labs in 1947 is credited to John Bardeen, Walter Brattain and:
सही उत्तर: ग) William Shockley
Bardeen, Brattain and Shockley shared the 1956 Nobel Prize in Physics for the invention of the transistor.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Unlike most later computers, ENIAC performed its arithmetic internally in which number system?
सही उत्तर: क) Decimal
ENIAC stored and processed numbers as decimal digits using ten-position ring counters; binary became standard with later stored-program machines.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Re-running previously passed tests after a program is modified, to make sure the change has not broken existing features, is called:
सही उत्तर: ग) regression testing
Regression testing checks that new changes have not reintroduced faults into previously working code.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which language is a well-known example of the logic programming paradigm?
सही उत्तर: ग) Prolog
Prolog programs are written as facts and rules, and answers are found by logical inference.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The first phase of a compiler, which reads source characters and groups them into tokens, is:
सही उत्तर: ग) lexical analysis
The lexical analyser (scanner) produces tokens such as keywords, identifiers and operators for the parser.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The undecidability of the halting problem, proved by Alan Turing, means that:
सही उत्तर: घ) no general algorithm can decide, for every program and input, whether the program will halt
Turing showed that a universal halting-decider cannot exist, giving a fundamental limit of computation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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How many comparisons does selection sort make to sort an array of 5 elements?
सही उत्तर: घ) 10
Selection sort always makes n(n - 1)/2 comparisons: 5 x 4 / 2 = 10.
💬 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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