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Operating System Structures and Services

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rupalidhir

The document summarizes key aspects of operating system structures: 1) It describes the services operating systems provide like user interfaces, resource management, protection and security. 2) It discusses different approaches to structuring operating systems like layered designs and microkernel architectures. 3) It explains operating system booting and how a small initial program loads the kernel into memory to start the operating system.

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Chapter 2: Operating-System Structures
Chapter 2: Operating-System Structures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Objectives ,[object Object],[object Object],[object Object]
Operating System Services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System Services (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System Services (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
User Operating System Interface - CLI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
User Operating System Interface - GUI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
System Calls ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example of System Calls ,[object Object]
System calls and system programs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example of Standard API ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
System Call Implementation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
API – System Call – OS Relationship
Standard C Library Example ,[object Object]
System Call Parameter Passing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Parameter Passing via Table
Types of System Calls ,[object Object],[object Object],[object Object],[object Object],[object Object]
MS-DOS execution (a) At system startup (b) running a program
FreeBSD Running Multiple Programs
System Programs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Solaris 10 dtrace Following System Call
System Programs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
System Programs (cont’d) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System Design and Implementation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Operating System Design and Implementation (Cont.) ,[object Object],[object Object],[object Object],[object Object]
Simple Structure ,[object Object],[object Object],[object Object]
MS-DOS Layer Structure
Layered Approach ,[object Object],[object Object]
Layered Operating System
UNIX ,[object Object],[object Object],[object Object],[object Object],[object Object]
UNIX System Structure
Microkernel System Structure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mac OS X Structure
Modules ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Solaris Modular Approach
Virtual Machines ,[object Object],[object Object],[object Object]
Virtual Machines (Cont.) ,[object Object],[object Object],[object Object],[object Object]
Virtual Machines (Cont.) ,[object Object],Non-virtual Machine Virtual Machine
Virtual Machines (Cont.) ,[object Object],[object Object],[object Object]
VMware Architecture
The Java Virtual Machine
Operating System Generation ,[object Object],[object Object],[object Object],[object Object]
System Boot ,[object Object],[object Object],[object Object],[object Object],[object Object]
End of Chapter 2

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Operating System Structures and Services