Electronic Computing: Crash Course Computer Science #2

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  • Опубліковано 19 вер 2024

КОМЕНТАРІ • 901

  • @humanity3.090
    @humanity3.090 7 років тому +2022

    As a software engineer, I still find this fascinating!

    • @rydohg
      @rydohg 7 років тому +51

      Humanity 3.0 I like that Crash Course is exposing more people to computer science and hey it's a great refresher

    • @armorsmith43
      @armorsmith43 7 років тому +19

      Humanity 3.0 I think it is great as a study of how one can better explain things to others, even those who are in the field.

    • @songfreak1745
      @songfreak1745 7 років тому +2

      +

    • @juandiegoruedaalarcon8274
      @juandiegoruedaalarcon8274 7 років тому +17

      Thick question but, how would you describe software engineering? (as in pros and cons) I'm interested in computer science and would like to acquire some of your wisdom :)

    • @beautymin9685
      @beautymin9685 7 років тому +30

      because lots of what shes talking about is either skipped or barely touched on in most cs class

  • @michaelpisciarino5348
    @michaelpisciarino5348 5 років тому +675

    1:04 Harvard Mark I
    2:33 Additions, Subtractions, Multiplications, Divisions. Computer Bugs
    3:34 John Ambrose Fleming, Thermionic Valve.
    Lee de Forest
    4:55 Triode Vacuum Tubes
    5:31 Electronic Computing. Colossus MK1. Alan Turing
    6:35 ENIAC
    7:40 A Transistor. Computers get smaller, Computers get cheaper
    9:35 Silicon Valley

    • @ghost_reccon1665
      @ghost_reccon1665 4 роки тому +14

      you mean sooo much

    • @Niabelxx
      @Niabelxx 4 роки тому +17

      THANK YOU SO MUCH!!!!! I HAVE TO USE THIS FOR A TEST

    • @SatyanarayanaBolenedi
      @SatyanarayanaBolenedi 4 роки тому +6

      Thanks for the quick references

    • @emmaholly9681
      @emmaholly9681 4 роки тому +7

      Thank you so much I had I project due a few days ago I didn't so I had to do it today the time frames where very helpful!😀

  • @TheOriginalGN
    @TheOriginalGN Рік тому +88

    I’m a senior computer science student, and although I’ve been taught a good amount on the history, this channel blows those classes out the water. Thank you for your hard work!

  • @AndersonPEM
    @AndersonPEM 7 років тому +458

    I'm an IT professional. Still is always good to visit the origins of what we are today. :) keep doing this great job!

  • @unstoppablefalse
    @unstoppablefalse 7 років тому +33

    Whenever I pause and unpause the episode, I can't help but say "Carry on Carrie Anne"

  • @WhatTheGame
    @WhatTheGame 4 роки тому +299

    I find it funny that Grace Hopper coined the term computer bug when his entire name is literally 2 letters off from the name of a bug. [Grass Hopper].

  • @limmeh7881
    @limmeh7881 4 роки тому +35

    I'm a computer science student, and this is really entertaining to watch 😁good to research background info on my field

  • @Scerttle
    @Scerttle 7 років тому +43

    This isn't what I thought I wanted. But it turned out to be everything I didn't know I wanted.

  • @lamontowens1655
    @lamontowens1655 7 років тому +20

    "Thanks for the Random Access Memories" Carrie Anne, you're a gem.

  • @shawn6669
    @shawn6669 7 років тому +98

    Congrats, Carrie. You're officially my favorite non-Green-Brothers (hereafter NGB), Crash Course Host. None of the other NGB CC Hosts manage to hold my interest long enough to watch their stuff. You've got a good mixture of interesting subject matter and a pleasant delivery style. The GB's are both naturally funny and that works for the. I feel like the other NGB Hosts try to be too much like the GB's and it comes off false. For what it's worth. Keep up the good work.

  • @RedEyedJedi
    @RedEyedJedi 7 років тому +26

    I would like to say a huge thank you to all of the people featured in this video who made computers what they are today. I had my first computer when I was two, an Acorn Atom. I could program in basic on the Sinclair zx81 spectrum when I was ten and learned how to build a PC when I was 11. I have been lucky enough to of had nearly every type of PC from an 8086 right through to the quad-core that I have today. (upgrading soon) Programming (along with guitar) is my absolute favourite hobby. I have recently decided to become a full time software engineer. As you can see computers have played a huge part in my life and I am extremely grateful to all these people for making this possible. Thank you for this series, it is excellent and very informative.

    • @vhawk1951kl
      @vhawk1951kl 6 років тому

      bad luck to have defective causes-you might say parents.

  • @himangeetandan
    @himangeetandan Рік тому +9

    This channel is really the best to start the basics on upskilling yourself. May be 3 years ago these people got me interested in Psychology and now in Computer Science, even after having Commerce and Accountancy as my major currently in High School!
    Thanks, Crashcourse!🥰

  • @FewMinuteProgramming
    @FewMinuteProgramming 7 років тому +46

    Yes! THANK YOU for this series! You guys are my inspiration and I hope my videos can get to your quality one day.

    • @andyvoglo5861
      @andyvoglo5861 7 років тому +2

      Few Minute Programming To be honest, your vids are not that bad. Subscribed!

    • @thynguyen61
      @thynguyen61 7 років тому +4

      Few Minute Programming Your videos are so cute! You'll get there one day 😊

    • @orekihoutarou6107
      @orekihoutarou6107 7 років тому +4

      Few Minute Programming
      Nice C++ tutorials, keep up the good work!

    • @pinklady7184
      @pinklady7184 7 років тому

      Few Minute Programming, there are FREE open source softwares for animation or video editing free lite softwares, these that you can use to make your own videos. On my PC, I have OBS, Tupi 2D Magic, Krita, Opentoonz, Pencil2D, Synfig, Blender, MyPaint, Inkscape, Gimp, DragonBones, Hitfilm 4 Express, LMMS, etc. These are all FREE. You want to make motion graphics, you should have all these on your PC.

  • @satyabeee
    @satyabeee 6 років тому +5

    That's a fantastic course. It made my transition from mechanical engineer to being a software developer smooth. Many thanks..

  • @lambusaab
    @lambusaab 7 років тому +10

    I love this channel so much, I'm crying tears of joy.

  • @zerriep19
    @zerriep19 Рік тому +1

    whoever is the writer of this presentation and the presenter herself, I salute you. Its so engaging.

  • @PragmaticAntithesis
    @PragmaticAntithesis 7 років тому +13

    I'm impressed, you recognised the achievement of Blecthley Park.

  • @isuckatstarcraft96
    @isuckatstarcraft96 7 років тому +1

    Finally, someone who can explain things simply, concisely, and from the ground up.

  • @goku64100
    @goku64100 7 років тому +5

    I'm considering going into computer science for a degree. So far in these two episodes have made me a lot more intested in the topic and may be what I want to major in.

    • @vhawk1951kl
      @vhawk1951kl 6 років тому

      computer'science'?-there is no such thing

  • @Shanpey
    @Shanpey 4 роки тому

    It's amazing how these all things are create. The eletronic computers are so young and evolving so fast. We have a bright eay ahead.

    • @Shadow-vd7es
      @Shadow-vd7es 4 роки тому

      Ighor Santos the computer screen is brighter than my future -_-

  • @MichaelDevery
    @MichaelDevery 7 років тому +4

    It's interesting to see the link from the original researchers and inventors to the well-known computer companies that still exist today

  • @Manyeyebrows
    @Manyeyebrows 7 років тому +12

    Yes! Another Crash Course Classic brewing right here! This series is already contending with the Philosophy, Big History, and World History series for me! Keep it up Crash Course!

  • @tompov227
    @tompov227 7 років тому +408

    Alan Turing

  • @bikdigdaddy
    @bikdigdaddy Рік тому +6

    one of the best series i'm binge watchin and totally worth it!!

  • @nate3813
    @nate3813 7 років тому +514

    If you didn't already watch The Imitation Game, nows the time. I cried a little.
    Just a little.

    • @Undeaddog42
      @Undeaddog42 7 років тому +26

      Hadley Green You would have trouble getting through a programming class at my school without a bucket. My professor is the biggest Alan Turing fanboy and mentions him at least once a class.

    • @simbaonsteroids8836
      @simbaonsteroids8836 7 років тому +5

      Nate you cried a lot like the rest of us

    • @zoefischer7304
      @zoefischer7304 7 років тому +1

      Wait a second. People cry at this movie?

    • @phelanii4444
      @phelanii4444 7 років тому +7

      dude that ending effed me up, real bad. I haven't cried like that since the 11th Doctor regenerated :'(

    • @MrFahrenheit2k
      @MrFahrenheit2k 7 років тому +24

      Be aware that they've changed some of the aspects of his life and his work for the sake of plot. So, if you don't know much about him, better not use this movie as a thruthful source of information.

  • @mauriciofernandorojas4248
    @mauriciofernandorojas4248 4 роки тому +1

    This training ONE THE BEST MATERIAL I HAVE TAKEN.

  • @andysartz
    @andysartz 7 років тому +39

    Absolutely fascinating! I am loving the course this far! The "bug" thing really caught me. Can't wait for next week's episode! =D

  • @aenimatethemantra
    @aenimatethemantra 7 років тому +26

    I love the way her voice sounds, just how much she loves all this! 😁

    • @TheHaters112
      @TheHaters112 4 роки тому +5

      Ok buddy. Relax. There are plenty of females out there.

  • @ReinisRap
    @ReinisRap 4 роки тому +4

    Simply amazing content! Thank you for all your hard work putting this information and these videos together, much appreciated! I'm from Latvia (post-Soviet country) and my first computer was Windows95, my family got it probably around end of 90's and we were the first ones to get it in around my area. Never knew computers were already there long before that!

  • @brandednomad3075
    @brandednomad3075 4 роки тому +1

    The information in these videos are presented in a much clearer way than in my computer science degree.

    • @Shadow-vd7es
      @Shadow-vd7es 4 роки тому +1

      HOW IS THIS ANY CLEARER , This is hard because I’m 11

  • @evanc3114
    @evanc3114 5 років тому +174

    "sticky, slow, and just plain unreliable" - sounds like me Lol

  • @legoboy1707
    @legoboy1707 7 років тому +1

    I joined my school's robotics team this year, and was working a lot with transistors. Seeing them here felt like seeing an old friend on TV.

  • @liamreed459
    @liamreed459 5 років тому +5

    I used this for my homework, and it’s a very good source👌

  • @ImaginaryHuman072889
    @ImaginaryHuman072889 7 років тому +1

    great video, here's a few more points about relays and vacuum tubes:Transistors "generally" replaced vacuum tubes and relays for every related to digital logic because they are smaller, cheaper, faster, and require less maintenance. However, relays and vacuum tubes are still used today.Relays are used for high-power applications (for example, to switch on some massive device), but usually the transistors still actually control the relays. Also, since relays are electromechnical devices, they can actually be designed to be fail-safe via gravity control - this is something still used today in the railroad industry for example.Vacuum tubes are still used today for professional music applications. Most high-end guitar amplifiers use vacuum tubes because they just have an objectively better sound than using solid state devices (i.e. transistors). Solid state amps are generally way cheaper but don't sound as good.

  • @AlRoderick
    @AlRoderick 7 років тому +27

    For further viewing, the Computerphile channel did a few videos on Colossus, including the real reproduction they're building at the Bletchley Park museum.

  • @KCMMFB
    @KCMMFB 7 років тому

    As an Electronics and Comms Engineering student, hearing you talk about the progression of current/voltage controlled switches made me really excited.

  • @AviatorMage
    @AviatorMage 5 років тому +4

    I'm pretty late to seeing this series, and a new watcher of Crash Course, but I'm hoping to eventually get a degree in computer engineering and this is some of the most fascinating material I've ever watched, presented in a manner that my dumb brain can understand it. Thank you very much!

  • @babelKONI
    @babelKONI 7 років тому

    Love where PBS is going.

  • @AubreeGames
    @AubreeGames 4 роки тому +5

    Love the history overview! Thanks so much for this fascinating series!

  • @rippspeck
    @rippspeck 7 років тому +1

    What a great presenter, I really like her tempo and pronunciation.

  • @dustman96
    @dustman96 7 років тому +14

    This host is great!

  • @erisawesome
    @erisawesome 7 років тому

    Dear Crash Course CS,
    First of all, as a budding electrical and computer engineering, I am absolutely fascinated by your new series! I had previously learned about how relays and vacuum tubes worked, but putting them in the context of history really solidified their importance to computing. Bravo! But, the computer scientist and programmer inside of me is screaming at the fact that you labeled what is clearly and ECE course as CS.
    Don't feel bad, most people assume CS is building computers or writing code, but there is quite a distinction: CS is mostly theoretical and is built upon MATHEMATICS, NOT ENGINEERING. Hell, the AP Comp Sci exam is done in pencil and paper! All this stuff about relays, vacuums tubes, and transistors is great but if you don't talk about how they relate to logic, well it's not computer science.
    That was actually my hope for this episode: "An Introduction to Logic." The history's great and all but, if you don't cover CS principles, well it's not a CS course. For example, when you talked about transistors being a switch, that was a great way to introduce logic gates using multiple transistors. Two in series makes an AND gate and two in parallel make an OR gate. That kind of thing. You could have also had a bit on binary ("bit" was a pun!) counting and conversion to octal and hexadecimal (stuff that's tested on the APCSA exam). The direction you're currently moving is towards CPU design (according to previous videos). Again, I find that fascinating to me, but it is still not computer science.
    Your primary audience for Crash Course appears to be high schoolers looking for help on their APs (see: CC World History, CC Physics, etc.). It would really be helpful if you paralleled the AP. An episode on arithmetic, relational, and logical operators and binary counting WOULD BE COMPUTER SCIENCE and I have no doubt you guys could make as interesting and engaging as your other CC series (not to mention relevant to your target audience).
    Overall, I really hope you guys either change the name of this or simply go back to the drawing board because passing this off as a CS course is not doing anyone any good.

    • @TerryRoyer
      @TerryRoyer 7 років тому +2

      Well it's only episode 2. They've still got dozens of episodes to talk about computer science. They said in the first episode that they were going to start with a history of computers so I think they are just gonna keep working until they hit on "real" computer science (ie logic)

    • @erisawesome
      @erisawesome 7 років тому

      JAMAL JONES You obviously didn't read my comment otherwise you would understand my issues with CC CS.
      So, to reiterate:
      Computer Science is the study of how data and instructions are processed, stored, and communicated by computing devices. Not the computing devices themselves.
      Electrical and Computer Engineering (ECE) is the study of how data is transmitted across electrical components and, more specifically, how microprocessors function.
      While there is some overlap in these two disciples, understanding the science behind how relays and transistors (electrical components) work clearly falls under ECE. The next few episodes (according to the comments made by the CC UA-cam channel) are going to focus on CPU design (the ALU, registers, etc.) even further pulling CC CS down the rabbit hole of ECE.
      Don't get me wrong, I love this series (am a ECE major) but it's not computer science.

  • @cipriancimpan9942
    @cipriancimpan9942 7 років тому +3

    Wonderful course!
    I love everything made by CrashCourse, and this one is a great addition to its playlist!
    The only thing I would change, if I could, would be the pace & speed of information. There's so much to assimilate in 10 minutes... maybe slow down a little or made the video longer, I don't know...
    No big deal though - keep up the good work, I love it.

  • @arcanezenithfulsuperearthling
    @arcanezenithfulsuperearthling 4 роки тому

    The jump from vacuum tubes to transistors is insanely huge. I had no idea how important the speed of switching power on and off is to computing.

  • @madleine5110
    @madleine5110 7 років тому +8

    CrashCourse is so helpful with my homework c:

    • @firebucket8203
      @firebucket8203 7 років тому +1

      AYAME KASUMI I could not agree more

  • @jamescarpenter8933
    @jamescarpenter8933 7 років тому +1

    I love the I Robot reference in the intro! Plus the rest of the show is excellent!

  • @InquisitorLP
    @InquisitorLP 7 років тому +141

    I was just wondering, why you didn't mention Konrad Zuse in this Video, because his Z3, built in 1941, was the World's first programmable Computer.

    • @LostInNumbers
      @LostInNumbers 7 років тому +5

      Joe Kerr not the first programmable, the first Turing complete.

    • @zamundaaa776
      @zamundaaa776 7 років тому +8

      LostInNumbers
      Konrad Zuse (German: [ˈkɔnʁat ˈtsuːzə]; 22 June 1910 - 18 December 1995) was a German civil engineer, inventor and computer pioneer. His greatest achievement was the world's first programmable computer; the functional program-controlled Turing-complete Z3 became operational in May 1941. Thanks to this machine and its predecessors, Zuse has often been regarded as the inventor of the modern computer
      So Wikipedia lies ?!?

    • @Lukeff7
      @Lukeff7 7 років тому +5

      Probably because its still an electro mechanical device rather than a digital computer. I guess she spoke about the Harvard I because it was a more interesting example perhaps.

    • @InquisitorLP
      @InquisitorLP 7 років тому +5

      Lukeff7 Yes, but his Z4 was the first commercial digital computer.

    • @IanDunbar1
      @IanDunbar1 7 років тому +1

      von Braun is mentioned pretty consistently when early rocketry comes up. At least in my experience.

  • @altres16
    @altres16 7 років тому +1

    This is my new favorite show

  • @Jim361tx
    @Jim361tx 7 років тому +5

    this series is awesome .. please keep it coming

  • @Nshiime
    @Nshiime 7 років тому

    you summaried my entire first year in college in a simple clear 11 minute video and I understood more than I did from heavy physics books

  • @mattabesta
    @mattabesta 7 років тому +23

    Nice episode, I feel like you glossed over the history of how transistors got so incredibly small a bit too fast though.

    • @hciprof
      @hciprof 7 років тому +33

      We've got a whole episode upcoming on the development of transistors, integrated circuits and Moore's law :) Mind-blowing stuff.

    • @s2korpionic
      @s2korpionic 7 років тому +16

      I mean... this is a crash course after all...

  • @mauriciorojas187
    @mauriciorojas187 7 років тому +2

    PLEASE KEEP MAKING THESE THIS IS THE BEST CRASH COURSE SERIES UP TO DATE

  • @jonsprivatelife
    @jonsprivatelife 7 років тому +7

    This is marvellously well done! Great hosting and editing! :)

  • @NargelsLikesMe
    @NargelsLikesMe 7 років тому +1

    I love the Mindstorms robot in the background! It was through those that I first learned programming :)

  • @GiladPellaeon
    @GiladPellaeon 7 років тому +118

    It is sad to see Konrad Zuse not even mentioned during the video.

  • @RonaldTagra
    @RonaldTagra 4 роки тому +2

    addictive and amazing courses.

  • @LamantinoElettronico
    @LamantinoElettronico 4 роки тому +4

    3:34 My mind was blown so hard

  • @KabukeeJo
    @KabukeeJo 7 років тому

    Whats truly amazing is that we now have children's toys that are more powerful than all those old computers combined. Imagine what we will have in another 70yrs.

    • @KaosFireMaker
      @KaosFireMaker 7 років тому

      Probably at the cap of Moores law

  • @caiojardim2280
    @caiojardim2280 7 років тому +117

    Please captions for people who have difficulty in auditory process issues. Thank you.

    • @armorsmith43
      @armorsmith43 7 років тому +7

      Caio Jardim-Sousa on mobile, tap the video and in the top right, you will see three dots. Tap that and select "CC" to turn captions on.

    • @joolzzenda
      @joolzzenda 7 років тому +7

      All of Crash Courses' previous videos are captioned so I assume the captions will be available soon. It's a shame they aren't available as soon as the video is live though.

    • @RosesAndIvy
      @RosesAndIvy 7 років тому +1

      +joolzzenda That's because captions are fan-made.

    • @joolzzenda
      @joolzzenda 7 років тому +1

      Renate vd Bent I really would have thought they would do it themselves, at least in English if nothing else. I manage to find time to caption and I'm a 1 person team!

    • @caiojardim2280
      @caiojardim2280 7 років тому

      Thank you everyone for the reply yes I see it now but when I watched the video there were no captions.

  • @KiddsockTV
    @KiddsockTV 7 років тому +1

    Amazing how far we've come!

  • @dalmationblack
    @dalmationblack 7 років тому +3

    Loving the series so far!

  • @robert_wigh
    @robert_wigh 7 років тому +1

    3:28 Grace Hopper? Bugs? Grasshopper?

  • @dkSilo
    @dkSilo 7 років тому +103

    I'm the tiniest bit upset that the Z1 hasn't been mentioned yet. :)

    • @GiladPellaeon
      @GiladPellaeon 7 років тому +35

      Or Konrad Zuse at all.

    • @lordofthecats6397
      @lordofthecats6397 7 років тому +20

      Or the Z3, first (theoretically) Turing-complete computer to be built.

    • @wuschelthepuschel
      @wuschelthepuschel 7 років тому +17

      Yes, but at least they did mention the Bomb and Colossus. I've seen computer science history lessons done by Americans with only American computers in them.

    • @Nisa-yq9so
      @Nisa-yq9so 7 років тому +1

      Yeah I was waiting for that part

    • @patrichausammann
      @patrichausammann 6 років тому

      Oh, I like the Colossus MK1.😉

  • @wodddj
    @wodddj 5 років тому +1

    From a guitar guy's view
    Very appreciate that you have a valve in your hand.
    I can't get focused on anything with these fantastic looking bulbs!

  • @TheTariqibnziyad
    @TheTariqibnziyad 7 років тому +4

    this series is lit.

  • @Evan-bw8zr
    @Evan-bw8zr 4 роки тому

    watching this while strung out on caffeine is oddly satisfying.

  • @nimue325
    @nimue325 7 років тому +7

    Grace Hopper is awesome in so many ways but not for coining the term "bug." Bug, meaning a technical problem, had already been in use for several decades (1800's) so, as Hopper recorded in her journal when she taped in that moth, it was funny to find the "First actual case of a bug being found." It was a good joke after a long day at work dealing with problems, basically.

  • @maryraullettesayson4514
    @maryraullettesayson4514 7 років тому

    This just shows how pivotal the discovery of the Transistor is in the Computing world and in turn, human history. As an Embedded Software Engineer who studied Electronics Engineering, this crash course video still amazed me. It's really better when you have a bigger picture of the topic and it makes you appreciate all the components that make up a computer!

  • @chrisdlp2287
    @chrisdlp2287 7 років тому +6

    Hey crash course. I would LOVE if you started a series on ART HISTORY!! I could of used it last year 😓. But i would still watch it anyways because i love art!

    • @verdatum
      @verdatum 7 років тому +1

      If I'm not mistaken, it's in development.

    • @zoggerweibchen
      @zoggerweibchen 7 років тому +5

      King Chris *could HAVE

  • @deathdoor
    @deathdoor 7 років тому

    It ended already? Time passed fast, and I finally understood what vacuum tubes are.
    Again, I adore her. Thanks for hearing my pleads.

  • @neophytical
    @neophytical 7 років тому +153

    That weird moment when you realise your laptop is actually really complicated

    • @shade0636
      @shade0636 5 років тому +3

      @Guineapigs Was an insult really necessary? What's wrong with their comment? Seriously people can be so toxic for no reason.

    • @shade0636
      @shade0636 5 років тому +5

      @Guineapigs Or, you could actually educate them/correct them, so they know more than they did before. Insulting someone who isn't aware of something accomplishes nothing, they do not advance.

    • @po1ybius31
      @po1ybius31 5 років тому +5

      @@shade0636 What the hell happened here? Lol, but seriously, what was @Guineapigs saying that was insulting?

    • @shade0636
      @shade0636 5 років тому +1

      PO1YBIUS They insulted they one who made the comment because apparently they thought the commenter was wrong? Then they said scolding stupid people helps humanity to grow, rather than teaching them. Even though laptops actually are complicated.

    • @shade0636
      @shade0636 5 років тому +1

      PO1YBIUS Their insult wasn't that serious, it was just uncalled for and redundant to insult someone without correcting them.

  • @freddyacuna8829
    @freddyacuna8829 7 років тому +1

    This is aweome. I'm so happy right now *-*

  • @jangmanbnb
    @jangmanbnb Рік тому +6

    Thanks. Always good to come back and watch it again. It's my 3rd time! Thank you so much for the great work.

  • @lightspeedguru
    @lightspeedguru 7 років тому +1

    What a fantastic choice for the host! Great job and I can't wait to watch the rest of the series!

  • @Methylimidazol
    @Methylimidazol 7 років тому +86

    Missing Konrad Zuse here.

  • @prosuturbial6347
    @prosuturbial6347 7 років тому +1

    Excellent explanation, I hope I found this video while I was still in junior high school, this would highly probaly change my life track.

  • @NAMgangster
    @NAMgangster 7 років тому +45

    What about Konrad Zuse and the Z1. Many people think of the Z1 as the real first computer

  • @zeramino
    @zeramino 7 років тому +1

    Clicked on this as soon as I saw it! Thank you guys!!

  • @davidalexallen
    @davidalexallen 7 років тому +15

    Great series, I love it already! Also, I always wondered why it was called Silicon Valley but never thought to look it up.

  • @John-lf3xf
    @John-lf3xf 6 років тому

    I live in San Jose... I'm so proud.... *sheds a tear*

  • @WPMontgomery
    @WPMontgomery 7 років тому +9

    I can finally understand all of these things! As a liberal arts guy I've always been confused.

  • @pil3driverwaltz164
    @pil3driverwaltz164 Рік тому +1

    Best explanation of how a transistor works 👏

  • @sahajamatya
    @sahajamatya 7 років тому +545

    Who else is watching this on their ENIAC 😎

    • @DavidChipman
      @DavidChipman 7 років тому +46

      LOL, sometimes it feels like it.

    • @TheTariqibnziyad
      @TheTariqibnziyad 7 років тому +1

      the cows

    • @MrFahrenheit2k
      @MrFahrenheit2k 7 років тому +18

      It would be fascinating to know how much time it will take for ENIAC to decode this video (if that's even possible to convert modern ways of computing to its logic). Would probably take literally years... lol.

    • @marielleforgotmylastname8282
      @marielleforgotmylastname8282 7 років тому

      Meeeeeeeeeeee!

    • @MrFiremind
      @MrFiremind 7 років тому +33

      Presuming you could get the data in a format it could read and could create some sort of screen for it to play on that it could communicate with then it would take 184 seconds to display 1 frame of this video and would take roughly 34 days to display all of the frames in this video. That doesn't account for audio or network communication... just displaying the content frame by frame. Also because of how colors work in relation to computers and the fact that binary wasn't exactly invented fully yet it might require up to 3 decades to display the video frame by frame if the computer must translate between sources and allow for full color schemes.

  • @NuevoVR
    @NuevoVR 6 років тому +1

    thank you so much for these videos. i've been learning quite a few programming languages and took a course on ethical hacking but never really looked into the fundimental science of computing, great stuff

  • @talideon
    @talideon 7 років тому +156

    Poor overlooked Konrad Zuse...

    • @GiladPellaeon
      @GiladPellaeon 7 років тому +23

      Well, the thing is: his achievements are well known in Germany but he is overlooked in the english speaking world.

    • @Methylimidazol
      @Methylimidazol 7 років тому +14

      Keith Gaughan Zuse must be the world's least appreciated genius.

    • @brunofanp1926
      @brunofanp1926 7 років тому +2

      Keith Gaughan true, and plankalkul is pretty cool. Btw, you are very cute

    • @dcaonoek
      @dcaonoek 7 років тому +8

      I was so happy to have seen his work in the Deutsches Technikmuseum when I visited Berlin... What an amazing man!

    • @jairusgerardzapata4862
      @jairusgerardzapata4862 4 роки тому +2

      That's maybe because he worked for the Nazis

  • @derekonlinenow777
    @derekonlinenow777 7 років тому +1

    Crash Course has become a high quality online university.

  • @thenoobletlego
    @thenoobletlego 7 років тому +7

    Minus that weird intro song, the video was pretty good.
    9/10 - IMDB
    7/10 - RottenTomatoes
    600/10 - IGN

  • @uswa9857
    @uswa9857 7 років тому

    Her accent is really clear and easy to understand! Thanks!

  • @owarinoseraph2444
    @owarinoseraph2444 5 років тому +10

    Watching day before computer science exam 😢😢😢

  • @raOdhiOnal
    @raOdhiOnal 7 років тому +1

    as an Artist, i find this very illuminating

  • @mijimelon
    @mijimelon 5 років тому +4

    3:29 "grace hopper" HAHAHAHAHAHAHAHA

  • @bascelik91
    @bascelik91 7 років тому

    this is epic! I am an electrical engineer and so far this is the best crash course that I have ever seen :D well done !!!!

  • @capitus1295
    @capitus1295 7 років тому +3

    Still, something is bothering me: if you control the gate electrode to switch on and off the transistor.. what is controling the electrode gate? Shouldn't it be able to switch on and off just as many times? And if so, why the need for a transistor at all?

    • @dreiundelfzig6452
      @dreiundelfzig6452 5 років тому

      To: what is Controlling the Gate electrode:
      To put it simply, either another transistor‘s Drain or the circuit of an Input device - for example your Keyboard
      That’s pretty abstract when you take into account how complex it can get
      Maybe the example of a microcontroller, like the arduino (which is fairly easy to learn btw ;)) is a bit easier to grasp:
      When a General Purpose IO Pin is configured as Input, the Data path leads (through various transistors) eventually to the gate of another one which Controls than whatever you want it to!
      Got a headache?
      Good, now you know how I felt when I first heard about it :D

    • @digammaf7060
      @digammaf7060 5 років тому

      This is because animations in this video does not show what happens when the input is off and the control is on : the output is off. The output does not fully depends on the control, actually the output is on only if the control and the output are on, and off otherwise.

  • @KerriCz
    @KerriCz 7 років тому +1

    I love this host, she has a cool accent and I love the way she speaks. Very understandable!

  • @songfreak1745
    @songfreak1745 7 років тому +3

    ahhhhh i need more of these!!! (maybe i would have stayed in CS if i had these lol)
    also thx for the RAM lol

  • @fares57
    @fares57 7 років тому +2

    The first patent[1] for the field-effect transistor principle was filed in Canada by Austrian-Hungarian physicist Julius Edgar Lilienfeld on October 22, 1925, but Lilienfeld published no research articles about his devices, and his work was ignored by industry. In 1934 German physicist Dr. Oskar Heil patented another field-effect transistor.[2] There is no direct evidence that these devices were built, but later work in the 1990s show that one of Lilienfeld's designs worked as described and gave substantial gain. Legal papers from the Bell Labs patent show that William Shockley and a co-worker at Bell Labs, Gerald Pearson, had built operational versions from Lilienfeld's patents, yet they never referenced this work in any of their later research papers or historical articles
    Oh... you bad, US driven thought bubble...... :) HIstory is made by the winners, eh?

  • @MrNotThatFamous
    @MrNotThatFamous 7 років тому +17

    teach me something real quick!

  • @shopgirlkc
    @shopgirlkc 7 років тому +1

    I'm so freaking excited about this Crash Course!

  • @shantanukawale9127
    @shantanukawale9127 7 років тому +4

    this is good who agrees with me

    • @vhawk1951kl
      @vhawk1951kl 6 років тому

      'good' being defined as what, and how?

  • @liquidmodernitytasteslikeu2855
    @liquidmodernitytasteslikeu2855 7 років тому

    thanks for the subtitles, it helps me a lot