Operating Systems Operating Systems - Winter 2010 Melanie Rieback Design and Implementation.

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Presentation transcript:

Operating Systems Operating Systems - Winter 2010 Melanie Rieback Design and Implementation Vrije Universiteit Amsterdam W&N, R4.33 –

Course Overview Operating Systems 2010 Vrije Universiteit AmsterdamSlide 1 Classes are in: Q1.12 on Wednesdays 13:30-15:15 C6.23 on Fridays 13:30-15:15 Examination: Wednesday March 24 15:15-18:00 (Q1.05) Wednesday June 9 18:30-21:15

Course Overview Operating Systems 2010 Vrije Universiteit AmsterdamSlide 2 In-Class Quizzes: Will be given on a surprise basis Are given at the beginning of class Can add up to 2(!) extra points to your grade But before you start celebrating: The questions will be hard This is a good way to gauge your progress during this course Will cover the material from the previous class

Structure of this Course Operating Systems 2010 Vrije Universiteit AmsterdamSlide 3

Chap 1 - Overview Operating Systems 2010 Vrije Universiteit AmsterdamSlide 4 What is an Operating System? A Bit of History…. Concepts System Calls Structure

A Bit of History Operating Systems 2009 Vrije Universiteit AmsterdamSlide 5

A Bit of History Operating Systems 2009 Vrije Universiteit AmsterdamSlide 6

A Bit of History Operating Systems 2009 Vrije Universiteit AmsterdamSlide 7

A Bit of History Operating Systems 2009 Vrije Universiteit AmsterdamSlide 8

A Bit of History Operating Systems 2009 Vrije Universiteit AmsterdamSlide 9

What is an OS? Operating Systems 2009 Vrije Universiteit AmsterdamSlide 10

Abstraction over HW Operating Systems 2009 Vrije Universiteit AmsterdamSlide 11

2 Views on OSes Operating Systems 2009 Vrije Universiteit AmsterdamSlide 12 OS as a Virtual Machine Extending the HW functionality Hides the messy details of programming the HW OS as a Resource Manager Protects against simultaneous usage of resources Fair sharing of resources (scheduling)‏ Resource accounting

How to View an OS Operating Systems 2009 Vrije Universiteit AmsterdamSlide 13

Processes Operating Systems 2009 Vrije Universiteit AmsterdamSlide 14

Multiple Processes Operating Systems 2009 Vrije Universiteit AmsterdamSlide 15

Files (1/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 16

Operating Systems 2009 Vrije Universiteit AmsterdamSlide 17 Files (1/2)‏

Files Concepts (1/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 18

Files Concepts (2/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 19

File System Mounting (1/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 20

File System Mounting (2/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 21

Special Files (1/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 22

Special Files (2/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 23

Process Management (1/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 24

Process Management (2/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 25

System Calls: Signals Operating Systems 2009 Vrije Universiteit AmsterdamSlide 26

System Calls: Files Operating Systems 2009 Vrije Universiteit AmsterdamSlide 27

System Calls: Directories Operating Systems 2009 Vrije Universiteit AmsterdamSlide 28

System Calls – Example (1/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 29

System Calls – Example (2/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 30

OS Structure: Monolithic (1/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 31

OS Structure: Monolithic (2/2)‏ Operating Systems 2009 Vrije Universiteit AmsterdamSlide 32

Virtualization Operating Systems 2009 Vrije Universiteit AmsterdamSlide 33

Client / Server Operating Systems 2009 Vrije Universiteit AmsterdamSlide 34