Filesystems

System Calls

Multiprocessing

execvp

Interprocess Communication

Virtual memory

Thread (computing)

Mutexes (Mutual exclusion)

Semaphores

Thread Pools

Parallel Compilation

Clients

Networking

API (Application Programming Interface)

MapReduce

File Descriptors

waitpid

Pipeline (Unix)

Signals

Multithreading

Race condition

Condition variables

Multithreading Patterns

Read-Write Locks

Networks

Servers

HTTP

Networking Functions

CS 110: Principles of Computer Systems Stanford University Winter 2022 CS 110 delves into advanced computer systems and program construction, focusing on designing large systems, software that spans multiple machines, and parallel computing. This course builds upon CS107 and requires good knowledge of C, C++, Unix, GDB, Valgrind, and Make. It covers Linux filesystems, multiprocessing, threading, networking, and more. CS107 took you behind the scenes:

- how things work inside C++/Python/Java, and how your programs map onto the components of computer systems
- understanding of program behavior and execution
 
CS110 uses this as a foundation to build complex programs that maximally take advantage of the hardware and operating system software available to us:

- How can we understand the designs and tradeoffs of large systems?
- How can we write software that spans multiple machines?
- How can we write software that runs tasks in parallel on a single machine? ### Course Topics Overview

1. **Overview of Linux Filesystems** - How can we design filesystems to store and manipulate files on disk?
1. **Multiprocessing and Exceptional Control Flow** - How can our program create and interact with other programs?
1. **Threading and Concurrency** - How can a single instance of our program perform multiple coordinated tasks at the same time?
1. **Networking and Distributed Computing** - How can we write programs that communicate over a network with other programs, and tackle large tasks using many machines?
1. **Additional Topics**: MapReduce, Caching, and Non-Blocking I/O **CS107 or equivalent -**

- Each of you should know C and C++ reasonably well so that you can...
    - write moderately complex programs (e.g. pointers, **malloc/realloc/free**, C strings, C++ classes, methods, references, templates, **new/delete**)
    - read and understand portions of large code bases
    - trace memory diagrams and always win!
- Each of you should be ﬂuent with **Unix, GDB, Valgrind**, and **Make** to the extent they're covered in CS107 or its equivalent.

The first assignment is meant to give you a sense of the scope of CS110 programs and refresh your memory on relevant prerequisites.  If you feel ok about it, you're all set! Second half of CS107 Textbook: *Computer Systems: A Programmer's Perspective by Bryant & O'Hallaron, 3rd Edition*

- Can purchase full copy, or Stanford Bookstore custom edition with just CS110 chapters
 
*Principles of Computer System Design: An Introduction* by Jerome H. Saltzer and M. Frans Kaashoek

- Free Stanford online access [here](https://www.sciencedirect.com/book/9780123749574/principles-of-computer-system-design)​ (also linked on course homepage)
- Fewer readings from this book vs. first one
- You're welcome to buy a physical copy if you'd like

CS 110: Principles of Computer Systems

Computer Systems

Directories

Job Control

Browser Design

Protocols

TCP (Transmission Control Protocol)

Async I/O

Large Files

Links

Process (computing)

Synchronization (computer science)

Threading

IP (Internet Protocol)

CS 110: Principles of Computer Systems Stanford University Summer 2021 Requiring familiarity with C/C++ and Unix/Linux, delves into computer systems principles. Students will engage with a blend of C and C++ to interface with system resources and manage complex projects. The course covers a broad range of topics including filesystems, multiprocessing, synchronization, networking, and MapReduce.   Formally, the prerequisite for the course is CS 107. Less formally, you need to be familiar with the C and C++ programming languages, Unix/Linux, `make`, Makefiles, `gcc`/`g++`, `valgrind`, `gdb`, and have some experience with basic computer architecture (x86 as it’s taught in CS107, or exposure to some other architecture with the confidence and ability to pick up x86 as I reference it). **If you have not taken CS 107, please email me at the beginning of the quarter to let me know.**

We’ll be coding in a mixture of C and C++ throughout the quarter. We rely on C, because the libraries needed to interface with system resources are written in C. We rely on C++, because the projects become large enough that I prefer to go with a more mature language that supports encapsulation and generic programming better than C does. You should understand pointers, dynamic memory allocation (`malloc`/`realloc`/`free`), and C strings perfectly. You should understand C++ classes, methods, references, templates, and C++'s `new`and `delete` operators. There are many C++ features you’re not expected to know, but you should have enough programming maturity to pick those features up and search the web for reference materials as needed.

The [CS 107 course website](https://web.stanford.edu/class/cs107/syllabus.html)is still up and may be a good reference. If you have not taken CS 107 and find yourself struggling, get help as soon as possible! This class moves quickly, and you will not want to fall behind. Email me and I may be able to point you to helpful resources. Readings are optional this quarter. I will post notes and slides with most lectures as reference material. However, if you would like additional readings to prepare for lecture or to reinforce concepts, I will list associated readings from the following textbooks:

- *Computer Systems: A Programmer’s Perspective* by Bryant and O’Hallaron, either the 2nd or 3rd edition. Both CS107 and CS110 teach from a subset of the B&amp;O textbook, the Stanford Bookstore carries a custom reader with just the chapters we need. Additionally, the Stanford library should have scans of this book available online in a week or two, although these are not yet available at time of writing.
- *Principles of Computer System Design: An Introduction* by Jerome H. Saltzer and M. Frans Kaashoek. The textbook should be available through the [Stanford library reserves](https://searchworks.stanford.edu/?f%5Bcourse%5D%5B%5D=CS-110-01) or [Science Direct](http://www.sciencedirect.com/science/book/9780123749574), and because it’s free, I assume most of you would just prefer to go with the free online version. Again, you’re welcome to purchase a hardcopy if you’d like. It’s available for purchase on [Amazon](http://www.amazon.com/Principles-Computer-System-Design-Introduction/dp/0123749573).

File system

Filesystems

2 courses cover this concept

CS 110: Principles of Computer Systems

CS 110: Principles of Computer Systems