Which of the following units converts processed binary data from the internal processor back into a form that human operators can read and understand? MCQ with Answer and Explanation

Which of the following units converts processed binary data from the internal processor back into a form that human operators can read and understand?
A. Output Unit
B. Input Unit
C. Arithmetic Logic Unit
D. Control Unit
Answer: Option A
Solution (By JKSSB Mock Tests)
The output unit (monitors, printers) takes binary numbers from the CPU and converts them back into human-readable text, graphics, or audio.

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What type of operating systems and user interfaces were primarily used during the third generation of computers?
A. Graphical User Interface (GUI)
B. Gesture-based Interface
C. Time-sharing and Remote-processing Operating Systems
D. Command Line Interface (CLI) with batch processing

Correct Answer: Option C


Explanation:
The third generation (IC era) saw the introduction of multi-programming, time-sharing, and early operating systems that allowed remote terminal access.

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Question #2
What type of primary internal memory architecture replaced magnetic drums during the second generation of computers?
A. Optical Storage
B. Flash Memory
C. Semiconductor Memory
D. Magnetic Core Memory

Correct Answer: Option D


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Second-generation computers migrated from slow magnetic drums to faster magnetic core memories for internal random-access storage.

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Which early calculating aid invented by John Napier used a set of numbered ivory rods to simplify complex multiplication and division tasks?
A. Pascaline
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C. Napier's Bones
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Correct Answer: Option C


Explanation:
John Napier invented 'Napier's Bones' in 1917, using carved rods to convert multiplication problems into simple addition steps.

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