Question:
Which one of the following is a feature of CPU-bound jobs?
Which one of the following is a feature of CPU-bound jobs?
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Remember:
• CPU-bound jobs \(\rightarrow\) More computation, less I/O.
• I/O-bound jobs \(\rightarrow\) More input/output operations, less computation. Scientific calculations are typically CPU-bound, while commercial transaction processing is generally I/O-bound.
• CPU-bound jobs \(\rightarrow\) More computation, less I/O.
• I/O-bound jobs \(\rightarrow\) More input/output operations, less computation. Scientific calculations are typically CPU-bound, while commercial transaction processing is generally I/O-bound.
Updated On: May 20, 2026
- Jobs perform I/O operation with little computation.
- Jobs in which CPU utilization is very low.
- Program used for commercial data processing applications.
- Program used for scientific and engineering computations.
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The Correct Option is D
Solution and Explanation
Concept:
A CPU-bound job is a type of process in which the execution time mainly depends on the speed and efficiency of the CPU. Such programs require a large amount of computation and relatively less input/output (I/O) activity.
CPU-bound jobs generally:
• Perform heavy mathematical or logical computations.
• Keep the processor busy for long durations.
• Require high CPU utilization.
• Are commonly used in scientific, engineering, and simulation applications. On the other hand, I/O-bound jobs spend more time performing input/output operations such as reading from disks, keyboards, or networks.
Step 1: Analyze Option (1).
\[ \text{Jobs perform I/O operation with little computation} \] This describes I/O-bound jobs, not CPU-bound jobs. Therefore, this option is incorrect.
Step 2: Analyze Option (2).
\[ \text{Jobs in which CPU utilization is very low} \] CPU-bound jobs require intensive processing and therefore have high CPU utilization. Hence, this statement is incorrect.
Step 3: Analyze Option (3).
\[ \text{Program used for commercial data processing applications} \] Commercial data processing applications usually involve frequent input/output operations such as database access, file handling, and transaction processing. These are generally I/O-bound jobs. Thus, this option is also incorrect.
Step 4: Analyze Option (4).
\[ \text{Program used for scientific and engineering computations} \] Scientific and engineering applications involve complex numerical calculations, simulations, matrix operations, and heavy computations. Such tasks require intensive CPU processing and are classic examples of CPU-bound jobs. Therefore, this option is correct. \[ \boxed{\text{Correct Answer = (4) Program used for scientific and engineering computations}} \]
• Perform heavy mathematical or logical computations.
• Keep the processor busy for long durations.
• Require high CPU utilization.
• Are commonly used in scientific, engineering, and simulation applications. On the other hand, I/O-bound jobs spend more time performing input/output operations such as reading from disks, keyboards, or networks.
Step 1: Analyze Option (1).
\[ \text{Jobs perform I/O operation with little computation} \] This describes I/O-bound jobs, not CPU-bound jobs. Therefore, this option is incorrect.
Step 2: Analyze Option (2).
\[ \text{Jobs in which CPU utilization is very low} \] CPU-bound jobs require intensive processing and therefore have high CPU utilization. Hence, this statement is incorrect.
Step 3: Analyze Option (3).
\[ \text{Program used for commercial data processing applications} \] Commercial data processing applications usually involve frequent input/output operations such as database access, file handling, and transaction processing. These are generally I/O-bound jobs. Thus, this option is also incorrect.
Step 4: Analyze Option (4).
\[ \text{Program used for scientific and engineering computations} \] Scientific and engineering applications involve complex numerical calculations, simulations, matrix operations, and heavy computations. Such tasks require intensive CPU processing and are classic examples of CPU-bound jobs. Therefore, this option is correct. \[ \boxed{\text{Correct Answer = (4) Program used for scientific and engineering computations}} \]
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