Operating System 2

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]

OS Views Interface Components services OS

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, GUI, and Batch

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],[object Object],[object Object]

Example of System Calls ,[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]

Types of System Calls ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

System Programs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

OS structure ,[object Object],Memory Management I/O System Secondary Storage Management File System Protection System Accounting System Process Management Command Interpreter Information Services Error Handling

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],[object Object]

Operating Systems Structure (What is the organizational Principle?) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Early structure: Monolithic ,[object Object],everything user programs hardware OS

MS-DOS Layer Structure ,[object Object],[object Object],[object Object]

UNIX: Also “Simple” Structure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

UNIX System Structure User Mode Kernel Mode Hardware Applications Standard Libs

Monolithic design ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Layered Approach ,[object Object],[object Object],[object Object],[object Object]

Microkernel System Structure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Modules-based Structure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Virtual Machines ,[object Object],[object Object],[object Object]

Virtual Machines (Cont.) ,[object Object],[object Object],[object Object],[object Object]

Virtual Machines Implementation ,[object Object],[object Object],[object Object]

Virtual Machines (Cont.) ,[object Object],Non-virtual Machine Virtual Machine

Virtual Machines (benefits) ,[object Object],[object Object],[object Object]

Operating System Generation ,[object Object],[object Object]

Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

References ,[object Object],[object Object],[object Object],[object Object],[object Object]

Operating System 2

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Operating System 2