Operating System Basics: Components, Functions, and Management, Study notes of Total Quality Management (TQM)

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SYSTEM

PROGRAMMING (3-1-

Course Instructor :

Muhammad Tahir Akram

Lab Instructor:

Mr. Furqan Masood

Suggested Books

1. Linux System Programming by Robert

Love

2. The Linux Programming Interface by

Michael Kerrisk

3. Operating Systems Concepts Wiley Plus

Set by Abraham Silberschatz, Greg

Gagne, and Peter Baer Galvin

Computer System

Structure

 Computer system can be divided into four

components

 Hardware – provides basic computing resources

 (^) CPU, memory, I/O devices

 Operating system

 (^) Controls and coordinates use of hardware among various applications and users

 Application programs – define the ways in which the

system resources are used to solve the computing

problems of the users

 (^) Word processors, compilers, web browsers, database systems, video games

 Users

 (^) People, machines, other computers

Four Components of a Computer

System

What does industry mean when it says “Operating System”

 No universally accepted definition

 One view: “Everything a vendor ships when

you order an operating system”, but that

varies wildly

 Another view: “The one program running at all

times on the computer” (i.e., the kernel)

 Everything else is either a system program (ships

with the operating system) or an application

program

Four Major Management Functions of an Operating System

 (^) Process Management

 (^) Memory Management

 (^) Storage Management

 (^) Protection and Security