CS50 2016 - Week 0 - Scratch

TOC:
00:00:00 - This is CS50.
00:01:58 - Course Overview
00:03:37 - Introducing Binary
00:09:06 - Binary Bulbs
00:12:05 - ASCII
00:13:52 - RGB
00:15:32 - Taking Attendance
00:21:57 - Finding Mike Smith
00:27:59 - A Good Algorithm
00:30:55 - What's New
00:36:58 - CS50 Staff
00:41:44 - Course Events
00:43:44 - Staff Video
00:45:46 - Introducing Scratch
00:51:34 - Oscartime
00:56:23 - The Scratch Editor
01:00:32 - Scratch in Motion
01:02:39 - counting sheep
01:04:55 - pet the cat
01:05:37 - don't pet the cat
01:06:16 - threads
01:08:01 - hi hi hi
01:09:43 - Pokémon Go
01:11:01 - cough-0
01:12:06 - cough-2
01:13:08 - cough-3
01:15:24 - What Awaits
01:17:28 - Outro
Explained Segments:
Introducing Binary: • CS50 Explained 2016 - ...
Binary Bulbs: • CS50 Explained 2016 - ...
Taking Attendance: • CS50 Explained 2016 - ...
Finding Mike Smith: • CS50 Explained 2016 - ...
A Good Algorithm: • CS50 Explained 2016 - ...
Introducing Scratch: • CS50 Explained 2016 - ...
Outro: • CS50 Explained 2016 - ...

[@KanoaHaley]

Good luck to everybody in CS50 this year!

[@siyadhams3047]

CS50 is one of the most famous CS lecture all over the world!!

[@QBAlchemist]

Even though i've watched the previous versions and i'm pretty confident in most - if not all - of what's covered in this course, it's like coming back to an old faithful film ... I'll be tuning in for each episode. Keep up the great work, team!

[@zeinasadAldeen]

starting CS50 2017 in edX online course and my life start to change!! Thanks David . Algorithms (y)! problem solving

[@AhmedMohamed-xs8uq]

Hi zeina my name is ahmed yassin from egypt i want to help me in this course please because i did not understand and did not translate :/

[@comfort9995]

Hi do you happen to know how I can submit my projects ?

[@almaarialmaari7531]

Ahmed Mohamed ادخل على موقعهم في المتصفح chroom الفيديوهات تكون مترجمة

[@mohammedfouad6485]

Hi, do you have a translated version?????

[@mohammedfouad6485]

Do you have a translated version to Arabic?

[@Kinetic1001101]

Great lecturer and way of helping people visualized with your words, kind Sir! I am watching for review before diving into programming again! Big help and engaging!

[@JSBroadcast]

This guy makes Computer Science as easy as talking about bunnies. I studied CS couple of years ago and just decided to enforce my existing knowledge and this is mind blowing. The energy and enthusiasm this guy has is beyond amazing.

[@KQJ_Diya007]

Frr

[@kaikunng]

This is awesome!!! An impressive and amazing way of teaching CS.

[@SurTox]

👍👍👍👍It's great to be here with you. I'm here to watch another video. I loved seeing you today. I liked!

[@dipoadeparusi3972]

I cant believe this course is actually for free - If only lectures are this passionate and interesting. Wow great stuff!

[@adityagupta7445]

he made this a very very interesting one..one of the best lectures I ever had

[@onyekaokonkwo]

Following from EdX now. David's made CS more interesting than I've ever imagined all my life 😊

[@antunespriscila23]

I'm brazilian and I'm amazed at these classes! Thank very much!

[@geekyprogrammer4831]

Starting of my journey in the tech world!

[@music6591]

Best class ever, I didn't know learning computer science can be this fun !

[@davidjmalan]

Glad you've joined us!

[@harshits1368]

Thanks KZbin for suggesting this video!!

[@BDpartnercoJM]

Even as a rising Senior in CS with a ~3.7 GPA, I still find these videos immensely helpful and enjoyable. Great job to the professor and especially the camera guys. Highly entertaining lecture.

[@bobanmilisavljevic7857]

Still computing things 6 years later?

[@kaoutermarref9915]

This is basically what i learned in entire semester in one course and its even better

[@Noble_Savage]

These old lectures are way better than the new ones.

[@ourquran-8203]

great work and so interesting topic good luck

[@Naniy55462]

Started learning ,all the very best to all .achieve great

[@gregsmith4016]

This course looks awesome! I can't wait to work on the problem set for Week 0 and I'm going to have my 13 year old son who wants to major in CS, in college, take this course with me! Thanks for posting!

[@Rajeev-o2j]

I cant believe that i am learning this course for free.

[@davidjmalan]

Welcome aboard!

[@KenWorkProduction]

Woah if only my lecturer was this exciting

[@meetmerchant4733]

KenWorkProduction i know right

[@devanshshah7577]

Thank you very much! Cheers from India

[@ezman-vn8zy]

I'm just a 15 year old trying to learn some cs, thanks for putting these online.

[@antonyslavutskyi2485]

Don't need to set speed x1.5 like in the other videos

[@amansinghbhadauria2818]

I'm gonna set it 0.75x. yupp

[@senthilkumaravel1830]

:)

[@NirHason]

It looks like this auditorium is freakin hot! Poor David for sweating like that...

[@inejwraith3113]

I think he's sweating 'cause he has a very active stage presence.

[@wolfferoni]

I think even if he's that active, if there was a/c or at least air circulating, he shouldn't be gleaming with sweat. Good thing he's wearing black. Maybe that's why he wears black...

[@meetmerchant4733]

this is legendary

[@foobar1672]

I like this Divide-and-Conquer algorithm. It's really universal.

[@therightwillsaid550]

thank you leaders of Edx

[@MikeJunior94]

I wanna start a carreer in IT without any IT background in terms of my Bachelor's Degree. Got my second job interview for a traineeship next wednesday. These courses are a godsend!

[@rubin949]

crazy lecturer ! what an inspiring intro !

[@WisdomKeyy]

i love this guys

[@JorgeGarcia-xe4mx]

This is awesome, I wish more people could reach this. It's so awesome I would be willing to translate it to spanish to show my wife, family and colleagues!

[@andrewlee7307]

God, I've watched both the 2014 and 2015 version, every time it's just BETTER!

[@carlodecatoria4616]

Did you answered all the pt's too?

[@andrewlee7307]

Carlo Decatoria No man, I watched the 2014 version just to cram my knowledge on C, and I'm just following the CS50 2015 on edX, currently working on the pset5, but for videos now I majorly watched the CS50 2016 version cuz I want to keep updated:)

[@andrewlee7307]

***** I've only watched the first 5 weeks of 2016, the basic contents are quite the same, but there's still more here in the 2016 version, obviously they are keeping adding new stuff:)

[@andrewlee7307]

***** Yeah and the later lectures are obviously different, I've seen they added machine learning and python in the lecture, anyway I think it's good to keep updated:)

[@andrewlee7307]

***** You can also check the seminar archive on the official website called This is CS50 if you want to expand your knowledge

[@Blorglbl]

I'm so happy to watch it in front of my computer without having to dumbly stand up when he asks for it.

[@kollideoskope]

Blorglbl but no cake

[@verdurousvegan7437]

The cake is a lie

[@Blorglbl]

i can eat cake in front of my computer and as many as i want

[@Reflectors62MaiaNews]

This bro is burning on stimulants like HELL!!

[@jacquesbu8596]

Using french subtitles this course is incredible. 'I've also adapted the speed.

[@mellameezie]

Love it

[@traggerosbourne6877]

thanks for your tutorial they are amazing for self learners like me

[@michelzou2896]

According to a comment I read on the mit site there should be scratch for iPad already.However i don't see it around.Thank you for any information on this!

[@evail8312]

thanks cs50！ form China bless

[@KatherineRoman]

This is so inspiring and so amazing :) Greetings from Ukraine

[@akrbor]

I hope you are still developing after all those months!

[@user-hi6fo1ky8k]

which months you're talking about?

[@ritwikgupta7540]

Amazing...!!!

[@c_dust]

thanks

[@Maeda_Toshiie]

Wow, name drop right at the start with Brian Kernighan

[@SilasPiacenti]

I'm in love with that cute red head. What a smile!

[@srivatsansozhavaram]

Man i like him. Maybe the best teacher in the world

[@arjunsumbria2009]

awesome

[@strangekino3991]

Unbelievable 😘😍 teaching level

[@MrSka-sc4ld]

Can anyone explain me the part where he asks to stand and add up numbers its confusing😑 please help

[@rasheed.abead09]

Best class ever (y)

[@DerGraueFuchsss]

I guess Q really found his passion in Computer Science

[@flynn6990]

Heli żyje!!!

[@kurumipanda8034]

I learn more here rather than I do in my school

[@KQJ_Diya007]

Years later hehe

[@michelzou2896]

Ok thanks

[@praveenkumarreddy2069]

please tell me how to do in SCRATCH? after dropping some command lines and pressing the green button the cat will be in a new position then if I want to add some more commands and run the program from starting position, what to do?(I don't want to start from the position where i left after running first time )

[@Ericolasafrica]

#cs50 here we go

[@diiunctio1683]

New lectures - longer lectures.

[@Gabiyziynha123]

muito bom

[@sevenseven6123]

Hi, I just discovered this channel-is it worth watching the lectures from 2014/15 as well or would that be redundant? In case you alwayscover the same topics, the new ones are the most up to date, right?

[@precioustime2489]

Taking class from Pakistan... Realy a gem for me... Anyone else?

[@soldiergirl9486]

Hi everybody!) Why he says "I shopped classes" - on 1.04 min ? What does it mean??

[@luciosansaodasilvamessias9949]

It would be possible to legend in Portuguese BR for all available courses. Thank you very much.

[@jbarber96gang57]

someone help me out, I'm looking for cs exercises etc anything to help further my understanding

[@hadriencazes4315]

Does anyone know the introduction song of this course? I really like it !

[@brianjerez1117]

seconded on this

[@xuyingshao7190]

hello, world! any one taking this course on edX? any idea how to submit problem set 0?

[@TanMoy92]

Instruction are given in the pset themselves .

[@xuyingshao7190]

I saw that. Thank you.

[@dawidryan1452]

Anyone knows the name/artist of the music at the beginning of the vid?

[@brianjerez1117]

seconded

[@shivamnegi6042]

whats new this year

[@srrgmail]

what all are we gonna learn in this course?

[@suchitabanerjee4642]

sir, why not computer take odd position except 1? why in algorithm the statement change the position?

[@whythissucks829]

so...in summary .. look for the smallest problem of the big problem and then multiply that until you solve the big problem.

[@pilosopongnicko]

i checked the speed of the video thinking that i didn't set it to normal. Guess what it is NORMAL!!

[@shubhamshukla167]

sorry i was unable to find you comment on technical gurji's video regarding arduino, as you asked for raspberry pi , i must say you may prefer elementz14 raspberry pi tutorial and instructables to make projects

[@jordanbaron4341]

is this the same one thats available on edx.org?

[@alimujtaba9989]

thats of 2015.

[@orekihoutarou6107]

Ali Mujtaba There are actually two versions now.

[@luckyx360]

..?? whihc version to take

[@wolfferoni]

Holy heck, so many teaching staff. Are the classes really small or something? Or maybe they don't have multiple classes.

[@mquanit]

Thanks for uploading these lectures....respect from Pakistan

[@michelzou2896]

I can't find the entire cs50 on KZbin ,itune or anywhere else.I don't even see the following of this course. Can anyone help?

[@davidjmalan]

See kzbin.info, itunes.apple.com/us/course/id1191487593, and cs50.edx.org/!

[@ddcll9538]

how much of cs50 or any cs course can you not self learn via Internet and books?

[@dwhdai]

someone get this man a face towel!

[@matiasfranciacarraminana537]

Omg, I have to say that he speaks pretty fast... is kinda a good practice for my english hahah

[@carol9909]

Currently taking the CS50 Introduction to Computer Science online course on Edx, but I want to know...What courses should I take after I'm done with it so I can keep a good following with the material?

[@adhamahmed2674]

github.com/open-source-society/computer-science CS50 is the first course recommended by OSSU . check it

[@Zzzemlyanika]

00:10:52 - was it an apple? :) So sweet!

[@Zzzemlyanika]

Aaaahh, stress ball :D

[@highconsciousness240]

Where can i find the cs50 ide?

[@gelatocream1623]

he looks like what robert langdon looks like in my imagination

[@comfort9995]

I'm currently doing this course on edx does any one happen to know how I can submit my projects?

[@khushboodubey2215]

yes i also want to know

[@Anonymous-vh6kp]

Else if Smith is earlier in book. But you don't know where Smith is in the first place so how can you perform this expression?

[@meetmerchant4733]

It means if the letter 'S' is earlier than where he is right now I.e. 'M' he should scan the left part and if 's' is after 'M' he should scan the right part since it is already sorted, the compiler/computer knows which letter comes after which one

[@alitanwir3372]

He looks older.

[@zoefiri713]

Lel you can see him sweating, the back of his neck is shining like chrome

[@keepfeatherinitbrothaaaa]

Me and Mariiiiia, we go back like babies and...paci...fiah?

[@philippecolin151]

Does he run on nitroglycerin?

[@marcelatorres7824]

He should talk a little faster. hahahaha

[@brianjerez1117]

no falta el peruano que no sabe ingles :v

[@marco--ap]

no falta el corto mental que encasilla a las personas :)

[@antonioortiz3054]

Eh, eso significa que ya no falta nadie! Genial.

[@user-wu8cb2sv7x]

same like ferrari

[@goreguts666]

no really though.

[@andy2011go]

I also want a stress ball :(

[@le_travie7724]

What's the intro song? Yes I'm weird

[@learners6901]

how will i be able to follow him?

[@RenzoIsHereYT]

Wait is it free??

[@hamedaldarei538]

I feel tired of listening to him. Chill man!!

[@charan775]

why don't he drink water?

[@TBREAKTIME]

Can I access the problem sets if I don't have a Harvard account?

[@davidjmalan]

Yup, see cs50.tv or cs50.edx.org/!