Operating System Explained: Functions, Components and History

Operating System Prepared By: Junicel Estomo

What is an Operating System? ,[object Object]

Objectives of Operating Systems ,[object Object],[object Object],[object Object]

History of Operating Systems ,[object Object],[object Object],[object Object],[object Object]

System Components ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Main-Memory Management ,[object Object],[object Object],[object Object],[object Object]

File Management A file systems normally organized into directories to ease their use. These directories may contain files and other directions. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

I/O System Management ,[object Object]

Secondary-Storage Management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Networking ,[object Object],[object Object]

Protection System ,[object Object],[object Object]

Command Interpreter System ,[object Object],[object Object],[object Object],[object Object]

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

Process, on the other hand, includes: ,[object Object],[object Object],[object Object],[object Object],[object Object]

Process State ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

A process goes through a series of discrete process states. ,[object Object],[object Object],[object Object],[object Object],[object Object]

Process Operations ,[object Object],[object Object],[object Object],[object Object],[object Object]

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

Following are some reasons for creation of a process ,[object Object],[object Object],[object Object],[object Object]

Process Termination ,[object Object],[object Object],[object Object],[object Object]

Process States ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Process State Transitions ,[object Object],[object Object],[object Object],[object Object]

cont... ,[object Object],[object Object],[object Object]

Process Control Block ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Threads ,[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]

Threads ,[object Object],[object Object],[object Object]

Processes Vs Threads ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Why Threads? ,[object Object],[object Object],[object Object],[object Object]

Cont... ,[object Object],[object Object],[object Object],[object Object]

User-Level Threads ,[object Object]

Advantages: ,[object Object],[object Object],[object Object],[object Object]

Disadvantages: ,[object Object],[object Object]

Operating System Explained: Functions, Components and History

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