Day 01Part 21- Type of Operating system for gate computer science – Multi Tasking Operating system.<\/p>\n
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A Multi-tasking Operating System<\/strong> is an OS that allows multiple processes<\/strong> (tasks) to run simultaneously<\/strong> by efficiently managing CPU time and system resources<\/strong>. It enables a computer to execute more than one program at the same time.<\/p>\n \u00a0A multi-tasking OS<\/strong> allows a user to run multiple applications at the same time. It achieves this by using CPU scheduling<\/strong> and context switching<\/strong>.<\/p>\n Example:<\/strong> Running a web browser, a media player, and a text editor simultaneously on a computer.<\/p>\n Example:<\/strong> If a user is watching a video and an email arrives, the OS temporarily suspends the video to process the email notification.<\/p>\n Example:<\/strong> In an old Windows system, if one program crashes, it could affect the entire system because tasks do not preempt each other.<\/p>\n Key Concepts Used in Multi-Tasking OS:<\/strong><\/p>\n Context Switching<\/strong> \u2013 Saves the state of a running process and switches to another. Efficient Resource Utilization<\/strong> \u2013 CPU and memory usage is optimized. High CPU Usage<\/strong> \u2013 Can slow down performance if too many tasks are running. Windows<\/strong> \u2013 Supports preemptive multi-tasking.\u00a0What is a Multi-Tasking Operating System?<\/strong><\/h3>\n
\u00a0Types of Multi-Tasking Operating Systems<\/strong><\/h3>\n
1. Preemptive Multi-Tasking OS<\/strong><\/h3>\n
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2. Cooperative Multi-Tasking OS<\/strong><\/h3>\n
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\u00a0How Multi-Tasking Works?<\/strong><\/h3>\n
CPU Scheduling<\/strong> \u2013 Determines which process gets CPU time.
Process Synchronization<\/strong> \u2013 Manages multiple processes accessing shared resources.
Interrupt Handling<\/strong> \u2013 Manages system events efficiently.<\/p>\n\u00a0Advantages of Multi-Tasking OS<\/strong><\/h3>\n
Better User Experience<\/strong> \u2013 Users can run multiple applications without waiting.
Faster Execution<\/strong> \u2013 Reduces idle CPU time.
Parallel Processing<\/strong> \u2013 Useful in real-time applications.<\/p>\n\u00a0Disadvantages of Multi-Tasking OS<\/strong><\/h3>\n
Complex Process Management<\/strong> \u2013 Requires advanced scheduling algorithms.
Security Issues<\/strong> \u2013 Multiple processes running together can cause vulnerabilities.<\/p>\n\u00a0Examples of Multi-Tasking Operating Systems<\/strong><\/h3>\n
Linux<\/strong> \u2013 Uses process scheduling for multi-tasking.
macOS<\/strong> \u2013 Uses UNIX-based multi-tasking<\/strong>.
Android & iOS<\/strong> \u2013 Mobile operating systems with multi-tasking features.<\/p>\n\u00a0Difference Between Multi-Tasking, Multi-Processing & Multi-Threading<\/strong><\/h3>\n