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Operating System Part - 2 Chapter 14 for SBI PO / IBPS / Clerk / SO and Other Gov Exams Video Lecture | Crash Course for SSC CGL (Hindi)

Q: 2. What are the main functions of an operating system?

Ans. The main functions of an operating system are:- Process management: It manages and allocates system resources to different processes, ensuring efficient use of CPU and memory.- Memory management: It allocates and deallocates memory for different processes, ensuring optimal usage of available memory.- File system management: It manages the organization and storage of files on a computer's storage devices.- Device management: It manages the interaction between the computer and its peripheral devices, such as printers, keyboards, and disks.- User interface: It provides a user-friendly interface for users to interact with the computer system.

FAQs on Operating System Part - 2 Chapter 14 for SBI PO / IBPS / Clerk / SO and Other Gov Exams Video Lecture - Crash Course for SSC CGL (Hindi)

1. What is an operating system?

Ans. An operating system is a software that manages computer hardware and software resources and provides common services for computer programs. It acts as an intermediary between users and the computer hardware, allowing users to interact with the hardware without needing to know the details of how it works.

2. What are the main functions of an operating system?

Ans. The main functions of an operating system are: - Process management: It manages and allocates system resources to different processes, ensuring efficient use of CPU and memory. - Memory management: It allocates and deallocates memory for different processes, ensuring optimal usage of available memory. - File system management: It manages the organization and storage of files on a computer's storage devices. - Device management: It manages the interaction between the computer and its peripheral devices, such as printers, keyboards, and disks. - User interface: It provides a user-friendly interface for users to interact with the computer system.

3. What is multitasking in an operating system?

Ans. Multitasking is a feature of an operating system that allows multiple tasks or processes to run concurrently on a computer system. It enables the computer to execute multiple tasks seemingly at the same time by rapidly switching between them. This allows users to run multiple applications simultaneously, increasing productivity and efficiency.

4. What is virtual memory in an operating system?

Ans. Virtual memory is a memory management technique used by operating systems to provide more memory to processes than the physical memory available in the system. It allows the operating system to use a portion of the computer's hard disk as an extension of the physical memory. When the physical memory becomes full, the operating system moves inactive parts of the memory to the hard disk, freeing up space for other processes.

5. What is the difference between a 32-bit and 64-bit operating system?

Ans. The main difference between a 32-bit and 64-bit operating system lies in the amount of memory they can handle. A 32-bit operating system can access a maximum of 4 GB of RAM, while a 64-bit operating system can handle much larger amounts of memory, typically up to several terabytes. Additionally, 64-bit operating systems can process larger data chunks and perform calculations more efficiently, resulting in improved performance for certain applications.

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Sep 06, 2025 Last updated

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