Lecture 1 Course Introduction CSE 120 Principles of Operating Systems Alex C Snoeren Lab 0 Due Tuesday 10 03 Lecture 1 Overview Class overview What is an operating system Operating systems and hardware Operating systems and applications CSE 120 Lecture 1 Course Introduction 2 Personnel Instructor Alex C Snoeren Discussion TA Vikram Mavalankar Office hours Thursdays 2 3pm or by appointment EBU3B 3114 Discussion Wed 12 12 50pm in HSS 1330 Office hours Wed 1 2pm Homework grader Project TA John Fisher Ogden Lab hours TBD email EBU3B 3262 Project grader CSE 120 Lecture 1 Course Introduction 3 CSE 120 Class Overview Course material taught through class lectures textbook readings and handouts Course assignments are Discussion sections are a forum for asking questions Homework questions mostly from the book Three large programming projects in groups Lecture material and homework Additional OS topics e g how does an OS boot Other forums Mailing list cse120 cs ucsd edu Discussion board http webboard ucsd edu CSE 120 Lecture 1 Course Introduction 4 Homeworks There will be 4 5 homeworks throughout the quarter Reinforce lecture material no better practice Collaboration vs cheating You should discuss homework problems with others You can learn a lot from each other But there is a distinction between collaboration and cheating Rule of thumb Discuss together in library walk home and write up answers independently Cheating is copying from other student s homeworks or solution sets searching for answers on the Web etc Suspicious homeworks will be flagged for review CSE 120 Lecture 1 Course Introduction 5 Textbook Silberschatz Galvin and Gagne Operating System Concepts John Wiley and Sons 7th Edition ISBN 0471 69466 6 CSE 120 Lecture 1 Course Introduction 6 Nachos Project CSE 120 Lecture 1 Course Introduction 7 Nachos Nachos is an instructional operating system It is a user level operating system and a machine simulator Not unlike the Java runtime environment Will become abundantly clear or not so clear very soon Programming environment will be C on Unix Linux Solaris The projects will require serious time commitments Waiting until the last minute is not an option You will do three projects using Nachos Concurrency and synchronization Multiprogramming Virtual memory You will work in groups of 1 4 on the projects Start identifying partners now CSE 120 Lecture 1 Course Introduction 8 Labs We will use the uAPE B230 lab in the basement of the CSE EBU3B building Linux running on Intel machines You can also use your home machine The project source will work on Solaris but not Windows Graders will test on uAPE machines Be sure to test your projects there as well CSE 120 Lecture 1 Course Introduction 9 Exams Midterm Tuesday October 24th Covers first half of class Final Tuesday December 5th Covers second half of class selected material from first part I will be explicit about the material covered No makeup exams Unless dire circumstances we all want to start vacation early Crib sheet You can bring one double sided 8 5x11 page of notes to each exam to assist you in answering the questions Not a substitute for thinking CSE 120 Lecture 1 Course Introduction 10 Grading Homeworks 20 Think of these collectively as a take home midterm Midterm 20 Final 30 Projects 30 Each Nachos project is 10 of your final grade CSE 120 Lecture 1 Course Introduction 11 How Not To Pass CSE 120 Do not come to lecture It s nice out the slides are online and the material is in the book anyway Lecture material is the basis for exams and directly relates to the projects Do not do the homework It s only 20 of the grade Excellent practice for the exams and some homework problems are exercises for helping with the project 20 is actually a significant fraction of your grade difference between an A and a C CSE 120 Lecture 1 Course Introduction 12 How Not To Pass 2 Do not ask questions in lecture office hours or email Professor is scary I don t want to embarrass myself Asking questions is the best way to clarify lecture material at the time it is being presented Office hours and email will help with homeworks projects Wait until the last couple of days to start a project We ll have to do the crunch anyways why do it early The projects cannot be done in the last couple of days Repeat The projects cannot be done in the last couple of days Some groups last time learned that starting early meant finishing all of the projects on time and some didn t CSE 120 Lecture 1 Course Introduction 13 Class Web Page http www cs ucsd edu classes fa06 cse120 Serves many roles Course syllabus and schedule updated as quarter progresses Lecture slides Announcements Homework handouts Project handouts tons of info on Nachos start now CSE 120 Lecture 1 Course Introduction 14 Questions Before we start the material any questions about the class structure contents etc CSE 120 Lecture 1 Course Introduction 15 The Anita Borg Institute for Women and Technology and the Association for Computing Machinery Present San Diego October 4 7 2006 Over 1 000 women in computing Events for undergraduates considering careers and graduate school Events for graduate students Parties company representatives and more Volunteers Needed http www cs ucsd edu bsimon Free registration WiC Keynote Speakers Shirley Tilghman President Princeton University Sally Ride former NASA astronaut and UCSD professor Helen Greiner President iRobot CSE 120 Lecture 1 Course Introduction 17 Why Operating Systems Why are we making you sit here today having to suffer through a core course in operating systems Understand what you use Understanding how an OS works helps you develop apps System functionality performance efficiency etc Pervasive abstractions It s not like everyone will become OS developers after all Concurrency Threads and synchronization are common modern programming abstractions Java NET etc Complex software systems Many of you will go on to work on large software projects OSes serve as examples of an evolution of complex systems CSE 120 Lecture 1 Course Introduction 18 CSE 120 Course Material This course addresses classic OS concepts Services provided by the OS OS implementation on modern hardware Co evolution of hardware and software Techniques for implementing software systems that are System software tends to be mysterious Large and complex Long lived and evolving Concurrent Performance critical Virtual memory Wazzat Our goal is to reveal all mysteries CSE 120 Lecture 1 Course Introduction 19
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