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Operating System is a System Software

 

System software is a type of computer program that is designed to run a computer’s hardware and application programs. Operating System is the best example of system software. An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. All computer programs, excluding firmware, require an operating system to function.

MS DOS

MS-DOS, the acronym for Microsoft Disk Operating System, was an operating system with a command-line interface used on personal computers.

Windows 10

Windows 10 is a personal computer operating system developed and released by Microsoft. Windows 10 interfaces include an updated Start menu which incorporates elements of Windows 7's traditional Start menu with the tiles of Windows 8.  

LINUX

Linux is a Unix-like computer operating system assembled under the model of free and open-source software development and distribution.

Android Nougat

Android "Nougat" is the seventh major version of the Android operating system. Android is a mobile operating system developed by Google, designed primarily for touchscreen mobile devices such as smartphones and tablets.

iOS 10

iOS 10 is the tenth major and latest release of the iOS mobile operating system developed by Apple Inc.

Multiprogramming, Multiprocessing and Multithreading

A multiprogramming computer runs more than one program at a time (like running Word and Google Chrome running simultaneously). Multiprogramming is also the ability of an operating system to execute more than one program on a single processor machine. More than one task/program/job/process can reside into the main memory at one point of time.

In Multiprocessing computer uses more than one CPU(processor) at a time. Multiprocessing is the ability of an operating system to execute more than one process simultaneously on a multi-processor machine. 

A thread of execution is the smallest sequence of programmed instructions that can be managed independently. Multithreading is the ability of an operating system to execute the different parts of a program called threads at the same time. Threads are the light weight processes which are an independent part of a process or program.

 

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FAQs on Different Operating Systems - IBPS PO Prelims & Mains Preparation - Bank Exams

1. What are the different operating systems available for computers?
Ans. The different operating systems available for computers include Windows, macOS, Linux, Unix, and Android.
2. What is the most widely used operating system for desktop computers?
Ans. The most widely used operating system for desktop computers is Windows, developed by Microsoft.
3. Is macOS compatible with all types of computers?
Ans. No, macOS is only compatible with Apple's Macintosh computers. It cannot be installed on other types of computers.
4. Can Linux be used by non-technical users?
Ans. Yes, Linux can be used by non-technical users. There are user-friendly distributions of Linux, such as Ubuntu and Linux Mint, that make it easier for beginners to use.
5. Which operating system is commonly used in mobile devices?
Ans. Android is the most commonly used operating system in mobile devices. It is developed by Google and is used by various smartphone manufacturers.
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