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Mind Map: Basic Concepts of OS | Computer Awareness and Proficiency - SSC CGL PDF Download

Mind Map: Basic Concepts of OS | Computer Awareness and Proficiency - SSC CGL

The document Mind Map: Basic Concepts of OS | Computer Awareness and Proficiency - SSC CGL is a part of the SSC CGL Course Computer Awareness and Proficiency.
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FAQs on Mind Map: Basic Concepts of OS - Computer Awareness and Proficiency - SSC CGL

1. What is an operating system and what are its main functions?
Ans.An operating system (OS) is a software that acts as an intermediary between computer hardware and the user. Its main functions include managing hardware resources, providing a user interface, facilitating file management, and ensuring multitasking capabilities by managing processes.
2. What are the different types of operating systems?
Ans.The different types of operating systems include batch operating systems, time-sharing operating systems, distributed operating systems, network operating systems, and embedded operating systems. Each type serves different purposes and is designed for specific environments.
3. What is the role of system calls in an operating system?
Ans.System calls are the programming interface through which a user program requests services from the operating system. They provide a way for applications to interact with the OS to perform tasks like file operations, process control, and communication.
4. How does the operating system manage memory?
Ans.The operating system manages memory through techniques like paging, segmentation, and virtual memory. It allocates memory spaces for processes, keeps track of memory usage, and ensures that processes do not interfere with each other’s memory space.
5. What is the difference between process and thread in operating systems?
Ans.A process is an independent program in execution that has its own memory space, while a thread is a smaller unit of a process that can run concurrently with other threads of the same process. Threads share the same memory space of a process, making context switching between them faster than between processes.
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