CS241- Operating Systems and Networks Arshad Jhumka (OS) Graham - - PowerPoint PPT Presentation

CS241- Operating Systems and Networks

Arshad Jhumka (OS) Graham Martin (Networks) Department of Computer Science University of Warwick

Admin stuff

• Operating systems and networks:
• Lectures (80%) + programming assignment (20%).
• OS (14 lectures), Networks (13 lectures).
• Examinable start of Term 2.
• Lectures:
• Operating systems (~50% of module content)
• Networks (~50% of module content)
• Programming assignment:
• Specification available in Friday week 2
• Deadline Monday week 8 at 12pm.
• There will be a special (1/2) lecture to introduce the project.

Lectures

• Arshad - OS
• Process & memory management, scheduling and

synchronization, real-time scheduling.

• Graham - Networks
• Book:
• Operating systems concepts
• By Silberschatz, Galvin and Gagne - 9th Edition
• But we will also use some content from 8th edition.

Coursework

• Programming assignment
• Specification provided on Friday week 2 (official launch).
• Special 1/2 lecture.
• Explain the requirements + handle questions.
• The problem will be an OS problem but will focus on

networking aspect.

• You will have to write a short report at the end.
• Code + report submitted via Tabula
• We will have lab sessions (Tuesday@9, Friday@10) in CS0.06,

during which you can ask questions etc.

• Will be assessed on a variety of criteria such as software

engineering, correctness etc.

• More details in specification

Lectures

• Slides will be posted online before the lectures (as far as

possible).

• Module webpage:
• http://www2.warwick.ac.uk/fac/sci/dcs/teaching/material/cs241
• Slides are exactly what you will obtain on the book’s website
• http://www.os-book.com, click on slides.
• We will use the slides provided. Examples on board to

complement.

• We will not cover every chapter.
• Even chapters we are concerned with, we will only cover
• partially. Read chapter we cover in detail.
• I will mention relevant slide numbers.

OS? What is it for?

• HW hard to program
• Think assembly language etc.
• Shields away HW complexity, networks.
• Provides a level of abstraction.
• Resource management
• What if we have competing processes? coordination?

synchronisation?

• How do we allocate resources fairly?
• What if we have a distributed system?
• How do we get processes to coordinate? network problems?
• Memory management
• Finite space? What if requirement > space?

CHAPTERS

• Topics to be covered
• Process management and synchronization, scheduling,

coordination, RT systems.

• memory management.
• Some materials will not be in book. I will make supplementary

slides/materials available as and when required.