# Hello, World! This is a guide book for [CS61A: The Structure and Interpretation of Computer Science](https://cs61a.org), the introductory computer science class at the University of California, Berkeley. I'm Arushi — online, I go by AMKS. I've been teaching this class at Berkeley for five semesters. This guide contains my insights, some fringe concepts, with a couple challenge questions thrown in for good measure. It is meant as a compliment, not a replacement to the course. It does not pay lip-service to topics I don't have anything valuable to say about — I'd recommend keeping up with lectures, discussions, homework, labs and projects! Use this guide solely as an additional reference. ### **The Purpose of CS61A** The point of 61A is to make you great thinkers of Computer Science first, and great programmers second. The concepts are hard and abstract and, gotta be honest, occasionally annoying. My hope is for you to **see how this class is the foundation on which your CS journey is based.** ### **Expectations** You may be feeling overwhelmed by the amount of activities that 61A has. Word of advice – don't worry, you're not expected to do all of them. **The purpose of this overflow of info is not to scare you away but to let you know that you have as much support as you need and more.** ### **My Approach** Throughout this guide, I hope to: * Show you how the concepts that you are learning are applied in real life * Teach you how to think critically and break down problems * Teach you to built up smaller pieces into impressive large, cohesive programs And, of course, * **Make you the best 61A student that you can be.** ### **Closing Notes** * You get as much out of this class as you put in. * If you *ever* need help of any sort, you can reach out to me at `arushisomani@berkeley.edu`. Class related or not. **I'm invested in your success.** All the best, and go bears! :bear: --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://calnotes.gitbook.io/cs61a-guidebook/hello-world.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.