Jamia Millia Islamia MCA Computer Organization And Architecture (COA) Previous Year Questions (PYQs)
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Which of the following statements about RAM is correct?
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Solution
RAM is volatile memory used for temporary storage during program execution.
Which of the following is NOT a characteristic of the von Neumann architecture?
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Solution
Von Neumann architecture is based on a stored program concept where instructions and data are stored in the same memory. It uses binary arithmetic and executes instructions sequentially through the fetch–decode–execute cycle. Parallel processing is not a characteristic of the classical von Neumann model.
In computer memory hierarchy, which memory type is the fastest ?
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Solution
Speed order in memory hierarchy:
Registers > Cache > RAM > Secondary Storage
Among the given options, cache memory is the fastest.
In which memory type does the data remain intact even after the power is switched off?
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Solution
ROM is non-volatile memory that retains data even when power is off.
What is the full form of BIOS?
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Solution
BIOS is firmware stored in ROM that initializes hardware and starts the boot process when the computer is powered on.
What is the main function of the Control Unit (CU) of the CPU?
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Solution
The Control Unit directs the operation of the processor by fetching instructions, decoding them, and controlling their execution.
What is the full form of CPU?
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Solution
CPU is the main component that performs calculations and executes instructions.
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