CS50 2018 - Lecture 0 - Computational Thinking, Scratch

00:00:00 - Introduction
00:02:20 - Representation
00:07:18 - Binary
00:10:38 - Representing Letters
00:14:57 - Abstraction
00:15:54 - Unicode
00:18:47 - RGB
00:21:05 - Representing Images and Video
00:23:50 - Finding Mike Smith
00:26:54 - Solving Problems Effectively
00:29:19 - Pseudocode
00:32:36 - Scratch
00:33:53 - Oscartime
00:37:20 - The Scratch Editor
00:41:39 - meow
00:45:13 - count0
00:49:27 - pet0
00:51:28 - pet1
00:52:21 - bounce0
00:54:06 - bounce1
00:55:38 - Interactivity
00:57:03 - threads
00:59:07 - events
01:00:58 - Custom Blocks
01:05:16 - Gingerbread
01:06:34 - Ivy's Hardest Game

[njain]

Mind blown, I'm a computer science grad with software majors and 10 years + industry experience. Boom! What a way to learn, envy the Harvard students but then love the fact that David opened it up for peanuts like me. Thanks, David, you rock!

[Nikola]

You know he puts his soul into this when you see how much he sweats

[daniyalkhan]

I have never seen a teacher like David

Thanks a lot Sir ....

[michaeloneill]

0:00:49 - This is CS50
0:03:12 - Representation
0:05:37 - Binary
0:10:38 - ASCII
0:16:39 - Unicode
0:18:48 - RGB
0:23:48 - Algorithms
0:29:18 - Pseudocode
0:32:28 - Scratch

[Daniel-mzdn]

as someone who does computing at my local college, this guy explained a whole unit and explained better than my current tutors, thanks for this, it is useful

[fiorellarampal]

I DONT HAVE MONEY TO STUDY CS, BUT THANK GOD I HAVE INTERNET AND THIS COURSES AND THIS INCREDIBLE TEACHER ♥

[David_Liu]

I thought the lecture would be boring and I will need 1.5 speed. But nope, the lecture is absolutely amazing and Dave naturally speaks in 1.5😂🙌

[Aaronmoreno]

Because of David and the great teachings of CS50, I now have my dream career as a software developer. When I started watching these lectures 7 years ago. I knew nothing about CS

[averroez]

I first encountered his cs50 videos in 2007 and I watched the entire playlist, it is amazing to see him after 11 years he still has the same energy. RESPECT and BIG THANK YOU

[anaf]

It's so nice to see and listen to professor Malan again after so many years. I must say, he hasn't aged at all. Still as awesome as ever.
The first time I took CS50 was in 2010 and immediately fell in love with Mr Malan's teaching style, his passion and computer science in general. Unfortunately, "life got in the way" and I didn't finish the course. Later, in 2016, I came back to it but again miserably failed to continue. So sad to think about all those missed years....
Today is 03/31/2019 and I SWEAR TO GOD, THIS TIME I WILL FINISH THIS COURSE!!!

[shirishinherspace]

Searching this since ages, glad to know teacher like this even exist !

[rafellus]

That's passion. Thanks to all the people that improve so much the CS50 Course, to get to this point.

[diverseprogrammer]

My brain's like just going with the flow, without much need to think of every word he says or action he does. Good job!

EDIT: poor book...

[abramayman]

Learnt more in this hour than the last 5 years of my life. Cheers all!

[sheharyarshahid]

How beautifully Sir David make a a thing like algorithms and programming fun to learn.

[oluwatobimayowa]

The best introductory Computer Science course I've yet seen.

[sunilkc]

Wow this is amazing.
I learnt programming in my school and was taught most of the basic things but I missed many things there.
This lecture is awesome. I learnt many basic things about computer and how they work. This knowledge will surely help me a lot


Thank u so much for making it available for people like us

[alekhinedeclined]

It looks like David is nailing his lecture in the middle of having a massive panic attack. A true professional.

[gabrielgg]

Hello David! Fascinating way of conveying info. I was thrilled by the way you started and how you immediately had your audience hooked and of course you got myself hooked alike I was watching it on the site at home. I am in Córdoba, Argentina. One of my students recommended this course to me and I have no idea how to start but I started watching and reading. Watching Week 0 Lecture right now. I am 50 years old. To late to begin? I loved Computer Science, and now I think I will make it my career! Thanks a lot for so much!

[atulmy]

He is already talking at 1.25x, so you wont need to switch.