Book Description

***** WAGmob: Over One million Paying Customers ***** WAGmob brings you, Simple 'n Easy, on-the-go learning ebook for "Operating System 101". The ebook provides: Snack sized chapters for easy learning. Designed for both students and adults. This ebook provides a quick summary of essential concepts in Operating System 101 by following snack sized chapters: Operating System Overview: • What is an Operating System? • Operating System Services • Evolution of Operating System Process in Operating System: • Process Introduction • Process state • Process Control Block • Context Switch • Operations on Processes • Scheduling Queues Scheduling in Operating System: • What is Scheduling? • Schedulers • Criteria for CPU Scheduling Algorithm • Non-Preemptive Vs. Preemptive Scheduling • Types of Scheduling Algorithms Scheduling Algorithm I: • First Come First Serve • Shortest Job First • Shortest Remaining Time First • What is Priority? • Non-preemptive Priority Scheduling • Preemptive Priority Scheduling Scheduling Algorithm II: • Round Robin Scheduling • Multiprocessor Scheduling • Time Sharing Multiprocessor Scheduling • Space Sharing Scheduling • Gang Scheduling Threads in Operating System: • What is a Thread? • User level Thread • Kernel level threads • Differences and Similarities between Threads and Processes • Inter-process communication • Message-Passing System Process Synchronization I: • Process Synchronization • How process synchronization is achieved? • Critical Section Problem • Solution to Critical Section Problem • Two Process Solutions • Semaphore • Binary Semaphore • Classic Problems of Synchronization Process Synchronization II: • Bounded Buffer Producer-consumer Problem • The Readers- Writers Problem • The Dining-Philosophers Problem Deadlock in Operating System I: • Deadlock • Necessary Conditions • Resource-Allocation Graph • Methods for Handling Deadlocks • Deadlock Avoidance • Banker's Algorithm Deadlock in Operating System II: • Example of Bankers Algorithm • Deadlock Detection • Detection Algorithm • Example of Detection Algorithm • Recovery from Deadlock Memory Management I: • Memory Management • Physical and Logical address • Overlays • Swapping • Contiguous Memory Allocation • Memory Allocation Method Memory Management II: • Sample Problem on Memory Allocation • Paging • Segmentation • Comparison between Paging and Segmentation Virtual Memory and Page Replacement: • Virtual Memory • Demand Paging • Page Fault • Page Replacement Technique • FIFO • Optimal Page Replacement Algorithm • LRU Page Replacement • Thrashing File System: • File concept • File Attributes • File Operations • Common File Types • File Access Methods • File Allocation Methods Disk Scheduling: • Disk Scheduling • First Come-First Serve (FCFS) • Shortest Seek Time First (SSTF) • SCAN • C-SCAN • LOOK About WAGmob ebooks: 1) A companion ebook for on-the-go, bite-sized learning. 2) Offers value for money (a lifetime of free updates). 3) Over One million paying customers from 175+ countries. WAGmob Vision : Simple 'n easy ebooks for a lifetime of on-the-go learning Visit us : www.wagmob.com Please write to us at [email protected]. We would love to improve this ebook.