CS50 2020 - Lecture 0 - Scratch

TABLE OF CONTENTS

00:00:00 - Introduction
00:00:49 - Representation
00:07:43 - Binary
00:21:33 - ASCII
00:31:14 - Unicode
00:33:29 - RGB
00:41:54 - Algorithms
00:43:21 - Finding David
00:49:15 - Solving Problems Efficiently
00:54:29 - Pseudocode
01:00:23 - Scratch
01:03:05 - Hello, World
01:04:12 - Variables
01:10:10 - Text to Speech
01:11:17 - Sounds
01:12:59 - Loops
01:15:38 - Pen
01:16:18 - Conditions
01:19:08 - Variables
01:20:53 - Animation
01:24:30 - Sensing
01:26:58 - Video Motion
01:27:56 - Broadcasts
01:29:30 - Translation
01:31:03 - Custom Blocks
01:35:15 - Gingerbread Tale
01:36:32 - Oscartime
01:38:21 - Raining Men

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LICENSE

CC BY-NC-SA 4.0
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License

David J. Malan

[dalmolinable]

Seeing this energy with an empty crowd is so inspiring

[dejiko]

The fact that I can watch this for free is just amazing, I love the internet.
I'm putting all my time and effort into this, I hope it pays off.

[lupamo_Arnold]

Me : can I go to Harvard
Mom : no we have havard at home
Me:🤯

[cvsfkj]

Started my journey here around 3 years ago, got hired yesterday. Thanks man.

[jeftealves]

I can't believe that.
Yesterday I started this course.
For a moment I really thought I was at Havard. The best class I've ever had, I'm really looking forward to watch the next lesson. I'm from Manacapuru a small city from Amazonas Brazil.

[lAcedUpLiss]

I'm so impressed, this lecture is so engaging. I usually struggle to pay attention in my Uni classes due to ADHD. However, David's teaching style is so passionate and engaging that I have no trouble following along. I'm going to binge these all week! I can't believe these are free.

[teensworldpolaride]

00:00:00 - Introduction
00:00:49 - Representation
00:07:43 - Binary
00:21:33 - ASCII
00:31:14 - Unicode
00:33:29 - RGB
00:41:54 - Algorithms
00:43:21 - Finding David
00:49:15 - Solving Problems Efficiently
00:54:29 - Pseudocode
01:00:23 - Scratch
01:03:05 - Hello, World
01:04:12 - Variables
01:10:10 - Text to Speech
01:11:17 - Sounds
01:12:59 - Loops
01:15:38 - Pen
01:16:18 - Conditions
01:19:08 - Variables
01:20:53 - Animation
01:24:30 - Sensing
01:26:58 - Video Motion
01:27:56 - Broadcasts
01:29:30 - Translation
01:31:03 - Custom Blocks
01:35:15 - Gingerbread Tale
01:36:32 - Oscartime
01:38:21 - Raining Men

[animeshpandey]

his energy is so high during the class that sometimes i really want him to rest.

[hardikbhagia]

If you're reading this, I hope you have a great year ahead.

[anaygarodia]

The first 30 minutes were 4 years of my school education

[musiccater]

All I can say is those kids are so lucky having a professor like that, so dedicated and passionate - this is awesome that this lecture have been uploaded for online viewing - Love this :)

[Charlie-hopp]

He is the most extroverted IT guy I've ever seen...love the energy!

[FateNo]

Such an awesome lecture and great professor! He's clearly passionate about his work.

[gurujicoder]

Other teachers read the book, David Malan tear the book.
What a legend !

[jeremydundon]

I'm glad you gave your phone number there in the middle; We've been trying to reach you about your vehicle's extended warranty which is about to expire.

[sarahgebhardt]

I am a ninth-grader from Germany and I understood everything and it is so much fun, I never thought it would be fun at all, so much positive energy, feels like I understand the whole internet now wowww I wanna go to Harvard now

[Mollyarty]

I could watch this dude for days, he's a really good presenter

[JainHruday]

this guy taught me scratch in 1 hour - my teacher took 1 year.

[nenon]

Thank you Harvard for sharing your knowledge with mortals who cant afford to get in :D

[NEWYORKERonthego]

22 minutes in... wow. Where was he when I was taking C++ in high school?! I never thought of myself as a math or (computer) science person, but always felt I was quite a logical person. This entire explanation is so logical to me so far.

It's like a light switch went on in my head to understand all of this 😛