Operating Systems: Crash Course Computer Science #18

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Күн бұрын

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So as you may have noticed from last episode, computers keep getting faster and faster, and by the start of the 1950s they had gotten so fast that it often took longer to manually load programs via punch cards than to actually run them! The solution was the operating system (or OS), which is just a program with special privileges that allows it to run and manage other programs. So today, we’re going to trace the development of operating systems from the Multics and Atlas Supervisor to Unix and MS-DOS, and take at look at how these systems heavily influenced popular OSes like Linux, Windows, MacOS, and Android that we use today.
Produced in collaboration with PBS Digital Studios: / pbsdigitalstudios
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Пікірлер: 632

@billmeistera1992 5 жыл бұрын

Thank you to the presenter. She did an amazing job of breaking down a technical topic into a fun and interesting one in a very effective short time.

@Flowtail 4 жыл бұрын

Yep, as she does every episode ^ω^

@realFoxBox 7 жыл бұрын

11:18 where IT began "Have you tried turning it off and on again?"

@psun256 4 жыл бұрын

retrogamefox IT: 50% google the answer and other half is turn it on and off

@EdwardCree 6 жыл бұрын

As a Linux kernel developer, I watched the whole video planning to point out all the mistakes and errors. Frustratingly, there weren't any. Well done +CrashCourse, you've ruined my fun ;)

@sauronvile4169 5 жыл бұрын

Except that the operating system ISN'T the first thing to start when you turn on a computer.

@lethalurethral3056 5 жыл бұрын

@@sauronvile4169 She said typically didn't she

@Kori114 7 жыл бұрын

Who else had a brief moment of panic at 11:38 ? I will never forget the sound of old windows giving me a freaking error!

@noxabellus 7 жыл бұрын

bsod ptsd

@madLphnt 7 жыл бұрын

love that sound....Ski Free was awesome too

@kyc269 7 жыл бұрын

Kori114 That sound made my blood pressure spike.

@ashboon1625 7 жыл бұрын

I rarely see a bsod in windows 10 nowadays...

@firebucket8203 7 жыл бұрын

ash boon dun dun dun du dun dun

@janek8195 7 жыл бұрын

I love this show! I've learned so much from it, especially the episodes explaining all the details of how transistors come together to make logic gates, and how those actually come together to make all the different basic parts of a cpu. I've known about logic gates and the way they work (their "rules") for a long time, but never found a video series explaining how they're applied in practice that was so easy to absorb and so well organized. Keep making more episodes plz :)

@kerig6416 4 жыл бұрын

These videos have taught me more than my college professors for the past 2 semesters. THANK YOU, and excellent work on these videos!

@shadowlove3626 Жыл бұрын

Currently starting the transition from clinical psychology to tech and I could not be more pleased with this channel and series! It was wonderful during grad school for psychology and now for technology as I look for programs, I already completed some work though Coursera but this really helps lay a foundation and fill in gaps of specific skills I am currently learning.

@HugoCornellier Жыл бұрын

Excellent presenter. I’ve specifically come back to her videos because she’s helped me during Uni!

@rayshardthompson1456 7 жыл бұрын

Am I the only one who burst into laughter when she said "plug and pray" 😂😂

@mf_01 7 жыл бұрын

my teacher said plug and chug

@madLphnt 7 жыл бұрын

yeah ive heard plug n chug regarding physics equations before never plug n pray but they both sound good. plug and chug is better though

@AthAthanasius 7 жыл бұрын

In the early days of "Plug and Play" on PCs it didn't work all that well, so we did indeed call it "Plug and Pray".

@f.j.n.9215 7 жыл бұрын

A bit like that Australian cardinal did...

@djbutterchicken 7 жыл бұрын

Rayshard Thompson yes you were

@satyanweshi-bb 5 жыл бұрын

CrashCourse, you have helped me with satisfying my curiosity for a large number of fields. Thanks for all this.

@dippy9119 7 жыл бұрын

I am thoroughly enjoying the computer science crash course series. Great work Kerryanne and Crash Course.

@thesk8erdav 7 жыл бұрын

computers are rocks we tricked to think

@SbotTV 7 жыл бұрын

I always like to say that computer science is essentially the art of tricking the universe into doing your homework.

@oldcowbb 6 жыл бұрын

we are meat that trick ourselves that we can think

@edibleturd 6 жыл бұрын

But we had to flatten them first so we could put lightning in them

@RibbittIII 6 жыл бұрын

Dav 1243 if a computer thinks than a submarine swims

@limitless1692 5 жыл бұрын

Hahahaha 😎

@jhgfd82 7 жыл бұрын

Aww! You guys put in clips from Bits & Bytes! I loved that series! So happy to see it surface here in some way. Thank you!

@sixfr0nt 5 жыл бұрын

Had to watch this for my high school computer science class. I’m not disappointed.

@thdoom81 6 жыл бұрын

you are a blessing..the sequential nature of your videos really helps

@countrykang8 2 жыл бұрын

This is one of the best lectures I have seen on KZfaq. Keep the info coming!!

@revolutionaryprepper4076 Жыл бұрын

This is a very good explanation of how operating systems came about.

@cholten99 7 жыл бұрын

I vividly remember in 1994 when my flatmate bought a Commodore Amiga that could play music and print at the same time. We'd had UNIX (Solaris on Sparcs) at uni but seeing a home OS do that felt like a huge step forward.

@overestimatedforesight Жыл бұрын

It's amazing how much things make sense as solutions once someone has explained the problem.

@aurathedraak7909 6 жыл бұрын

As a programmer and learned computer science. I loved it every bit of it since I was a 14.

@kfqfguoqf 4 жыл бұрын

Excellent video, very interesting to see each OS feature coming up as a natural solution to a problem people had!

@chrisseddon260 7 жыл бұрын

Quote of the episode: "This was clearly terrible"

@keistzenon9593 5 жыл бұрын

Nice soundbyte :D the way she says it is kinda funny imagining it it of context

@morezco 7 жыл бұрын

Might just be the most interesting Crash Course for me

@KevShaw808 4 жыл бұрын

This is a great video for anyone trying to learn more about operating systems.

@abdallahlakkis449 Жыл бұрын

The presenter is absolutely awesome at simplifying these concepts

@adamstrejcovsky8257 10 ай бұрын

this channel is simply amazing. i was looking long time for some quick explanation of what filesystem is without goign too much into detail, but all i found is comparisons which are better but not what FS actually is. and then there is this cool channel

@geoffbarker7776 6 жыл бұрын

As someone who has worked with mainframe tech produced in the 1960's and well used to a format loop on a printer you soon get to learn that everything is an evolution from something before it and thus long term you just see it as X with Y. The thing is that most people today would run a mile having to do what we used to have to do, bringing in paper to the print room by 3-4 boxes which was 190+ pounds in weight. Oh the stories of the good old days where throwing a write protect ring could down an entire place if it hit the emergency power off.

@springmemory6637 11 ай бұрын

Great video! I was wondering about all these different types of operating systems that exist and used to, this video was a delight to watch :)

@markh5101 7 жыл бұрын

Omg! I haven't watched this yet but I'm already super excited for the Reboot reference on the title card!

@Rtotalmagic 7 жыл бұрын

Mark H Megabyte and Hexadecimal are cool villains, so it's fun to see them make an appearance...

@mndplg 7 жыл бұрын

Thank you Unix for being the granddaddy of Linux. We salute your efficiency, speed, and power.

@fredschwartz3654 7 жыл бұрын

I'm surprised I didn't hear IBM's MFT, MVT, MVS, and VM mentioned. I've been retired for a while, but for the first half of my programming career, they were the only operating systems robust enough to run any large meaningful corporate applications.

@fredericktiku2585 Жыл бұрын

Currently starting a course on operating system.This video was really helpful.

@lantishaledane 7 жыл бұрын

"Things weren't exactly PLUG-and-PLAY back then...more of PLUG-and-PRAY." :D :D :D

@sjupi7941 4 жыл бұрын

I studied computer science and was supposed to learn all of these at school but hated it back then. Because they didn't tell it like Carrie Anne.

@gustavskavacs9991 Жыл бұрын

This was actually very informative! Thank you! Great, I finally understand what a kernel is.

@varungopal6272 6 жыл бұрын

I wonder no other person can explain better than her such a huge information in crisp and simple way though it does not give a deep insight it is very intuitive

@austinmurphy9074 5 жыл бұрын

3:40 "dont lie. you dont pronounce it shhhheduling.. 4:16 "got you"

@austinmurphy9074 4 жыл бұрын

update: I now pronounce it shhheduling

@chrismissed 4 жыл бұрын

Nice catch

@magnusnordlund3787 Жыл бұрын

Best summary of operating system fundamentals I ever heard! Thanks!

@ajholanda 4 жыл бұрын

Congrats! Very crystal clear and concise!

@SunOfNight 7 жыл бұрын

Even after all these years since seeing it last, the blue screen sound at @11:39 is still familiar and dreaded.

@malikrahman8649 5 жыл бұрын

I love this series!!

@Danielevans2 7 жыл бұрын

"not quite plug and play but plug and pray" LOVE THAT. That's still true today WITH LIVE A/V +PA STUFF

5 жыл бұрын

I am digging this video series, really.

@explorerars4208 2 ай бұрын

This video is not for teaching purpose as it can be only understand by the person who have very much depth knowledge about all the operating system

@paxdriver 7 жыл бұрын

Yay! Abstraction elevator returns! Lol love the show, favorite on crash course so far

@thinkj2 6 жыл бұрын

Wow! great video! amazingly well structured and given in a clear and easy to understand explanation. Thank you! It was super helpful~!

@carlos26ch 4 жыл бұрын

This series is so good

@crazyconan28 7 жыл бұрын

Your videos are awesome! Thank you crashcourse!!!

@juanpablodenis3748 7 жыл бұрын

saw many video trying to grasp the concept of kernel, now I can say done.

@TheLukeSchnabel 7 жыл бұрын

This is awesome! Im hooked!

@JasmineOlivarez Жыл бұрын

As a cybersecurity student, I love her shirts lol. My professor linked me to this video for an assignment and it was really good, I learned a lot in such a short amount of time. Thank you!

@congaspy2058 7 жыл бұрын

"-blue screen of death-DUN" *heart attack*

@JasonWhittle1 6 жыл бұрын

I'm so glad you guys have a computer sub channel.

@Sarah-re7cg Жыл бұрын

wow, this is a lot and I mean A LOT of information in one video and answers so many questions I've had for so long lol thank you

@seatek 7 жыл бұрын

that was wonderfully put together!

@harikirankante3391 Жыл бұрын

This playlist is the reason why I took Computer science in my bachelor's degree ❤️

@verdatum 7 жыл бұрын

"It's a UNIX system....I KNOW this!!"

@SPRPhilly 7 жыл бұрын

"It tells you everything."

@jordantom1789 7 жыл бұрын

"cleaver girl..."

@JM-us3fr 7 жыл бұрын

Stupid movies I've memorized every line to. Now I have to like your comment

@edibleturd 6 жыл бұрын

It WAS Unix, the program used was filesystem navigator.

@aurorajarvis5502 6 жыл бұрын

Incidentally, the computer she was using was the same kind of system they used to make all of the cgi for the movie. A Silicon Graphics system.

@blakeingram1711 5 жыл бұрын

This is helping a lot with my app computer science principles class

@Naz-pk4ll 4 жыл бұрын

gosh, I wish there was such clarity for some of the mathematics areas. For example, stochastic processes.

@JDr-di2qw Жыл бұрын

thank you for present so nice course,love u guys,love u carrie anne ！

@the_mtb_engineer Жыл бұрын

Taught me exactly what Kernel means. Thank you!

@altres16 7 жыл бұрын

Very good episode!

@jordanhall1136 7 жыл бұрын

Can't wait for the next one!

@lot_us_begin 8 күн бұрын

Such a charming person, thank you so much, it was easy to understand and pleasant to listen to and watch ^^

@lilybohr Жыл бұрын

Watching this for my operating systems class.

@kevon217 Жыл бұрын

great crash course playlist!

@FitzRave 4 жыл бұрын

Wow I finally understand the true purpose of virtual memory

@izznub 7 жыл бұрын

Hey. I really like this series and just wanted to point out that the screen shown at 11m20s is not DOS but OS/400.

@TooUnoriginal 4 жыл бұрын

Thank you! Wanted to know what that was

@ryanpeavler5993 6 жыл бұрын

This is an excellent series with a distinguished instructor. In association with PBS? I think this would be an excellent program for PBS kids. Kids today do not know a world without technology. Both of our futures could be improved if children had access to the knowledge of computers and technology.

@khendron 6 жыл бұрын

I spotted Billy Van from Bits and Bytes!! The first show about computers I ever watched!

@tiamabderezai5374 7 жыл бұрын

Great, awesome, fantastic video!

@awakening882 4 жыл бұрын

beautiful summary!

@BrandonDoran00 7 жыл бұрын

Im loving the animated Reboot characters!

@typograf62 7 жыл бұрын

The printer at 5:43 displays a carriage tape. It did control form feed, top of form and feed to a predefined position (channel). Oh, those days. I wrote a printer driver in assembler to a really no-brain printer. It had no buffer, so I had to time each character calculating the time needed to change position and feed paper. As a bonus I added a tabulator function. The printer was a desktop model. It weighed 50 kg or more. My bicycle broke down when I moved this thing home on it.

@kasakai7215 6 жыл бұрын

I love this so much! Thank you,

@lucasmelo010 5 жыл бұрын

Amazing video. Very well explained and got major concepts from the evolution of OS. Thank you for the lesson!

@MadhuExplorer 4 жыл бұрын

short and best explanation.thank u

@MakeMeThinkAgain 7 жыл бұрын

2:20 Reminds me of when we used Macs to control videodisc players around 1990 and you had to study the manual for each device to know what you could do and how. I need to go lie down now.

@kirbymarchbarcena 7 жыл бұрын

Can't wait for the next episode...

@guitarsk8r11 7 жыл бұрын

Fascinating, thanks!

@haroonrasheed2568 4 жыл бұрын

Super cool nerdy explanation

@nohashtagshere4116 7 жыл бұрын

I'm liking this just because there's megabyte and hexadecimal on this icon screen. That's enough reason for me

@mehmetosman1366 7 жыл бұрын

Noha

@h3ct0rjs Жыл бұрын

As a professional engineer with extensive knowledge on os and networks I do reall enjoyed this video.thank you

@theCTCamp 7 жыл бұрын

Fantastic Reboot reference!

@SparrowFae 7 жыл бұрын

A++ Reboot reference. Much approved.

@LordMephistoteles 7 жыл бұрын

MIND BLOWN

@realcygnus 7 жыл бұрын

the evolution of technology is just as interesting as the technology itself

@Yahriel 7 жыл бұрын

@3:37 REBOOT REFERENCE I LOVE YOU

@simonzenn 5 жыл бұрын

Love the ReBoot reference

@AlexanderBarrow 7 жыл бұрын

"Meaning you can stream a video in your webbrowser and edit a photo in PhotoShop". I had to pause the video and take that in, because that exactly what I was doing :D

@Sethben 6 жыл бұрын

Plug and Pray!! love it!!

@katethemikufan9109 Жыл бұрын

Hi. I'm studying games Development and this video is really helpful. Thank you...

@echaltraw 7 жыл бұрын

Ok, I honestly clicked to watch the vid because of the Reboot chatacters on the screen card. Childhood nostalgia away!

@recklessroges 7 жыл бұрын

I'm surprised at how many people got the reference. I expected a much younger audience.

@EnragedSephiroth 7 жыл бұрын

Megabyte and Hexadecimal from Reboot... I love it

@hekimanash3301 5 жыл бұрын

Computer science, that's my passion. Circuit representation.

@celinehabbestad9380 10 ай бұрын

love the video! learn more from this than 8 hours studying :) btw where can i get the t-shirt?!

@kelliefay7625 7 жыл бұрын

Finally I understood some of this!!! :)

@emacs1088 4 жыл бұрын

I miss and respect Denis Ritchie very much. The first computer science book I read is his "The C Programing Language" about 8 years ago. I was so impressed by his wisdom and broad knowledge. God bless him!