CS33: Introduction to Computer Organization – Fall 2021

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Office Hours

Instructor/TA/LA Office Hours & Room Email   Piazza Day Lab Lead
Tony Nowatzki Eng.VI 472: M4-5pm, Th9-10am tjn cs.ucla.edu
Tyler Edmiston Boelter3256: Tu 3-4pm, Online Wed 12:30-1:30pm tedmist1@cs.ucla.edu Wednesday 3. Attack/Buffer Lab
Salekh Parkhati Wednesday 4:30-5:30pm (Boelter 3256S), Tuesday 11:30am-12:30pm (online) salekh@cs.ucla.edu Tuesday 4. Performance Lab
Victor Zhang Fridays 8-10 AM (Boelter 3256S) victorzhangyf@ucla.edu Thursday 1. Data Lab, 5. Thread Lab
Anubhav Mittal Mon 2-3pm (Online, link on ccle), Thu 2-3pm (Boelter 3256S) anubhavm@ucla.edu Friday 2. Bomb Lab


In this course our aim is to introduce the key concepts of computer systems. We will learn the basics of many topics, including computer architecture, computer organization, operating systems and concurrency. First we build from the bottom up with detailed explanations of number systems, how they are employed in the instruction set architecture. Then, using x86 as an example, we explain how programs are represented to the hardware, how to view and manipulate these abstractions (eg. procedure calls, stacks, interrupts, and traps) directly in assembly language, and how operating systems provide virtualization and process management. We finally demonstrate how this knowledge applies to improving system security and performance of a real system.


CS31 and CS32 are official prereqs. It is perhaps possible to take CS32 and CS33 together, but it will significantly increase the difficulty of the course.