Match the following.

2021

Match the following.

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  1. A.

    i – D, ii – C, iii – B, iv – A

  2. B.

    i – A, ii – B, iii – C, iv – D

  3. C.

    i – D, ii – A, iii – B, iv – C

  4. D.

    i – B, ii – C, iii – D, iv – A

Attempted by 532 students.

Show answer & explanation

Correct answer: A

The objective is to match the different types of Operating Systems (OS) with their primary characteristics or performance goals.

Correct Matches:

  1. Batch Processing System — D (CPU idle time): In early batch systems, the CPU often sat idle while waiting for slow I/O devices (like card readers) to load the next job in the batch.

  2. Multiprogramming — C (Resource utilization): The main goal of multiprogramming is to keep the CPU and other resources busy at all times by having multiple jobs ready in memory.

  3. Time sharing — B (Good response time): Time-sharing systems are designed to provide interactive use for multiple users, making quick response time a critical performance metric.

  4. Real-time — A (Meeting time constraint): Real-time systems are defined by their ability to process data and respond within strict, predetermined time constraints (deadlines).

Correct Option: Option 1 (i–D, ii–C, iii–B, iv–A)

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