Operating Systems: Crash Course Computer Science #18
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- čas přidán 5. 06. 2024
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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.
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11:18 where IT began "Have you tried turning it off and on again?"
retrogamefox IT: 50% google the answer and other half is turn it on and off
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.
Yep, as she does every episode ^ω^
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 ;)
Except that the operating system ISN'T the first thing to start when you turn on a computer.
@@sauronvile4169 She said typically didn't she
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!
bsod ptsd
love that sound....Ski Free was awesome too
Kori114 That sound made my blood pressure spike.
I rarely see a bsod in windows 10 nowadays...
ash boon dun dun dun du dun dun
Am I the only one who burst into laughter when she said "plug and pray" 😂😂
my teacher said plug and chug
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
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".
A bit like that Australian cardinal did...
Rayshard Thompson yes you were
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 :)
Quote of the episode:
"This was clearly terrible"
Nice soundbyte :D the way she says it is kinda funny imagining it it of context
computers are rocks we tricked to think
I always like to say that computer science is essentially the art of tricking the universe into doing your homework.
we are meat that trick ourselves that we can think
But we had to flatten them first so we could put lightning in them
Dav 1243 if a computer thinks than a submarine swims
Hahahaha 😎
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.
CrashCourse, you have helped me with satisfying my curiosity for a large number of fields. Thanks for all this.
Excellent presenter. I’ve specifically come back to her videos because she’s helped me during Uni!
"Things weren't exactly PLUG-and-PLAY back then...more of PLUG-and-PRAY." :D :D :D
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.
3:40 "dont lie. you dont pronounce it shhhheduling.. 4:16 "got you"
update: I now pronounce it shhheduling
Nice catch
Thank you Unix for being the granddaddy of Linux. We salute your efficiency, speed, and power.
These videos have taught me more than my college professors for the past 2 semesters. THANK YOU, and excellent work on these videos!
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.
I am thoroughly enjoying the computer science crash course series. Great work Kerryanne and Crash Course.
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!
"-blue screen of death-DUN" *heart attack*
Omg! I haven't watched this yet but I'm already super excited for the Reboot reference on the title card!
Mark H Megabyte and Hexadecimal are cool villains, so it's fun to see them make an appearance...
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.
Might just be the most interesting Crash Course for me
Had to watch this for my high school computer science class. I’m not disappointed.
Even after all these years since seeing it last, the blue screen sound at @11:39 is still familiar and dreaded.
"It's a UNIX system....I KNOW this!!"
"It tells you everything."
"cleaver girl..."
Stupid movies I've memorized every line to. Now I have to like your comment
It WAS Unix, the program used was filesystem navigator.
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.
This is a very good explanation of how operating systems came about.
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.
you are a blessing..the sequential nature of your videos really helps
The presenter is absolutely awesome at simplifying these concepts
These days, if you have 2-8GB of memory and are running the latest version of Windows, you can also find that half of your memory has gone to your OS.
As a programmer and learned computer science. I loved it every bit of it since I was a 14.
"not quite plug and play but plug and pray" LOVE THAT. That's still true today WITH LIVE A/V +PA STUFF
This is one of the best lectures I have seen on CZcams. Keep the info coming!!
"Half of a computer's memory just to run the OS"
So, Windows Vista?
It's amazing how much things make sense as solutions once someone has explained the problem.
Excellent video, very interesting to see each OS feature coming up as a natural solution to a problem people had!
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 :)
This is a great video for anyone trying to learn more about operating systems.
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
I'm liking this just because there's megabyte and hexadecimal on this icon screen. That's enough reason for me
Noha
This was actually very informative! Thank you! Great, I finally understand what a kernel is.
Currently starting a course on operating system.This video was really helpful.
Best summary of operating system fundamentals I ever heard! Thanks!
Yay! Abstraction elevator returns! Lol love the show, favorite on crash course so far
Congrats! Very crystal clear and concise!
7:38 Re:Boot reference -I love you.
I'm glad that someone else noticed 😃
I was like... is that Hexadecimal? It is!
saw many video trying to grasp the concept of kernel, now I can say done.
Crash Course releases operating systems at the same time PBS releases quantum field theory. If you need me, I'll be watching The Matrix.
Wow! great video! amazingly well structured and given in a clear and easy to understand explanation. Thank you! It was super helpful~!
I love this series!!
This is awesome! Im hooked!
that was wonderfully put together!
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
I am digging this video series, really.
Hey. I really like this series and just wanted to point out that the screen shown at 11m20s is not DOS but OS/400.
Thank you! Wanted to know what that was
"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
Your videos are awesome! Thank you crashcourse!!!
"Chillin, you know, not like a villian, but relaxing." I didn't need that, but thanks i guess 😂.
This series is so good
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
Im loving the animated Reboot characters!
gosh, I wish there was such clarity for some of the mathematics areas. For example, stochastic processes.
This is helping a lot with my app computer science principles class
Windows 10 still crashes constantly and when you least expect it. One of the reasons I now use Linux and MacOS (a Unix derivative itself). Windows 7 I did find visually appealing and was more stable than previous iterations, but nevertheless using Windows is as annoying as ever. Whenever you install a program, you always run the risk it will alter the OS so the next time you boot up, you get some error message. Oh, and it's especially vulnerable to viruses. Only recently did Microsoft provide basic antivirus as standard along with the OS. Embarrassing. Windows Vista and Windows 8 were prime example of half-baked underdeveloped versions of Windows that should have never been released.
I spotted Billy Van from Bits and Bytes!! The first show about computers I ever watched!
Taught me exactly what Kernel means. Thank you!
I'm so glad you guys have a computer sub channel.
Oh the good ol' days, back when we had to load an iPhone onto a truck and transport 10MB across the country.
Never underestimate the bandwidth of a truck hurdling down the road fully stocked with iPhones.
Oslo MGTOW Ayy Mgtow
The good ol' days juuuuust before Counter-Strike came out. mmmm the joy of playing what i knew at the time would be the most enjoyable game ever to be played again. still playing :) 1.6 too ppl cmon dont even ask.
Garbaz OMG! That is a number crunching orgasm right there.
A form of IPoAC. With modern devices like SD Cards, still can be much better than crappy internet.
en.wikipedia.org/wiki/IP_over_Avian_Carriers
Can't wait for the next one!
Love the ReBoot reference
Very good episode!
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
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!
This playlist is the reason why I took Computer science in my bachelor's degree ❤️
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.
Super cool nerdy explanation
great crash course playlist!
@3:37 REBOOT REFERENCE I LOVE YOU
Watching this for my operating systems class.
thank you for present so nice course,love u guys,love u carrie anne ！
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.
Megabyte and Hexadecimal from Reboot... I love it
A++ Reboot reference. Much approved.
Fantastic Reboot reference!
Plug and Pray!! love it!!
Wow I finally understand the true purpose of virtual memory
beautiful summary!
I love this so much! Thank you,
short and best explanation.thank u
That reference to ReBoot at 7:36 xD
I spotted Hexadecimal from ReBoot!!! This is the best show on CZcams!!!!!!!!
I think she should have mentioned that UNIX is still with us in the form of Linux and Android, it really makes you appreciate the age and amount of work that went into these things. (also BSD and Darwin :) )
To me its astonishing how even after all these years, even if the way we do computing has changed completely, Linux is still very much a multi-user system designed for main frames; you can see it everywhere from user management and the permission system, to the way tasks are handled, the filesystem and the presence of TTYs. The core principles of UNIX are still very much present.
Personally i find amazing how stratified, complex and messy Linux is: it never really changed from that original design, it only grew is size and functionality: you can pick up a UNIX manual from the 1980s and find that 90% of the information in there still works with some very minor changes, it blows my mind :D
The only modern UNIX-certified operating system is macOS. Linux-based systems and Android are merely UNIX-like.
i assume you mean its derived from AT&T UNIX? I was fairly sure Darwin was based on BSD... anyway i meant it more as 'the legacy of UNIX' rather than a strict successor. besides i was talking in terms of fuctionality and philosophy :)
It's because of Linux tries to follow POSIX when possible.
Finally I understood some of this!!! :)
Great, awesome, fantastic video!
Fascinating, thanks!
Can't wait for the next episode...
MIND BLOWN
Ok, I honestly clicked to watch the vid because of the Reboot chatacters on the screen card. Childhood nostalgia away!
I'm surprised at how many people got the reference. I expected a much younger audience.
Hi. I'm studying games Development and this video is really helpful. Thank you...