What is Software? Explain job of operating system.

Software is a collection of programs, procedures, and data that instruct a computer on how to perform specific tasks. It is categorized into system software, which manages hardware and basic system operations, and application software, which provides tools for user tasks like word processing and web browsing.

Operating System (OS) Job:

The operating system is critical system software that manages computer hardware, software resources, and provides services for application software. Its main functions include:

1. Resource Management: Allocates and manages CPU time, memory space, and storage for applications.
2. File System Management: Organizes and controls data storage, enabling file creation, deletion, and access.
3. Process Management: Handles process scheduling, execution, and termination, ensuring efficient task execution.
4. Device Management: Manages input/output devices, ensuring communication between hardware and software.
5. User Interface: Provides a user interface (GUI or CLI) for user interaction with the computer system.

The OS ensures smooth and efficient operation of the computer system, enabling users and applications to perform tasks effectively.