Question

Which of the following Operating System reads and reacts in actual time?

• A. Multi-user system
• B. Real-time system
• C. Batch Processing system
• D. Multiprocessor system

Hint:

Real-time operating systems are crucial in applications where immediate responses are necessary, such as industrial automation and aerospace.

Answer 1

The Correct Option is B

Step 1: Understand the different types of Operating Systems.
Operating systems are categorized based on their design and the types of applications they support:
Multi-user system: Allows multiple users to access the computer system simultaneously. Examples include Unix and Linux.
Real-time system: Designed for applications where time constraints are critical. The system must process and respond to events within a guaranteed timeframe. Examples include operating systems for industrial control systems, medical devices, and avionics.
Batch Processing system: Executes jobs in batches without direct interaction from the user. Typically used for large, repetitive tasks.
Multiprocessor system: Uses multiple CPUs to execute tasks in parallel, improving performance.

Step 2: Identify the OS that reacts in "actual time".
The term "reads and reacts in actual time" directly describes the fundamental characteristic of a Real-time system. These systems are designed to provide immediate responses to inputs and events, ensuring that tasks are completed within strict deadlines.