How do computers store images?

  Рет қаралды 374,857

Udacity

Udacity

Күн бұрын

Пікірлер: 627
@OliverBevan23
@OliverBevan23 8 жыл бұрын
Your presentation is good and energetic but slightly misleading. In reality, bitmaps aren't stored like this-each pixel is not represented with a letter from the Latin alphabet. Instead, each pixel has a colour which is defined by a string of bits, and the length of the string of bits determines the colour depth of the image. It's clear from the comments that you have confused a number of people about the method in which the images are stored. Instead of saying that each pixel is stored with a letter, you could have said that: In the black-and-white image of a cup, each pixel is stored as a 1 or a 0. If you have four colours, each pixel is stored with two bits (00, 01, 10, or 11), thereby the image has a colour depth of two bits. You've explained the use of binary and transistors in computers, but transistors don't "store" 1s and 0s. They simply allow or disallow current to flow through them. Also, Unicode is not used for storing images. Unicode is a standard for encoding symbols and letters from other languages and writing systems. I don't want to sound condescending, and correct me if I have made any mistakes; I understand this video is meant to be simple, but perhaps you've made it "too" simple.
@gauravrawal2485
@gauravrawal2485 8 жыл бұрын
Give this man a cookie.
@varunupadhyayt
@varunupadhyayt 7 жыл бұрын
I agree with you..
@qudratullahkhan4518
@qudratullahkhan4518 6 жыл бұрын
You should make a video on this topic with technical approach. This guy wants to explain the concept in a very simple way for absolute beginners.
@nikhilgoyal007
@nikhilgoyal007 6 жыл бұрын
Oliver, thanks for pointing this out. I had the same thoughts. your humble vigilance is much appreciated.
@robingurung778
@robingurung778 6 жыл бұрын
anonymous usd Yes capacitors are of course used in computer they store charges(data) That's why you found your data after switching off and on again
@brennonmitchell7753
@brennonmitchell7753 6 жыл бұрын
his little dance is cute and funny at the same time lmaooo
@alieneargaming4687
@alieneargaming4687 2 жыл бұрын
it makes me think of elon mask the time he was presenting the model 3
@arghosinha1424
@arghosinha1424 5 жыл бұрын
Picture = Pi Element = El pi"x"el. That's where the "x" comes from!!
@karakurt9735
@karakurt9735 5 жыл бұрын
Pi x El =
@pabloasenjo3
@pabloasenjo3 4 жыл бұрын
Pictures are often shorten to pics, wich sounds like pix
@rajasreebhowmik7799
@rajasreebhowmik7799 4 жыл бұрын
Find X
@jeremybenson5782
@jeremybenson5782 4 жыл бұрын
Looks like Satan claiming to be the god of math. 'x' for Antichrist or mark. 'x' is also the middle Hebrew variant of the letter which Christ claimed to be "aleph and the tav." Pretty interesting.
@EntertainmentDaily2345
@EntertainmentDaily2345 4 жыл бұрын
@᪶ ᪶ someone understand this comment
@OPTIONALWATCH
@OPTIONALWATCH 4 жыл бұрын
Each pixel varies in color, including pixels that will look like they have a gradient shading. What happens is that each one of those shades will have a number code that refers to the 1s and 0's. Each one of these shades recreate the picture. The more complex and the more pixes, the more defined the picture will be.
@manishmishra7191
@manishmishra7191 4 жыл бұрын
Appreciate the way you kept it simple mate! Thanks for ensuring to cover all aspects too, which a rookie may have as doubts!
@flock65-t5g
@flock65-t5g 3 жыл бұрын
Welcome man
@siddharthgopi
@siddharthgopi 8 жыл бұрын
this dude is good at teaching shit
@headofgamers1027
@headofgamers1027 5 ай бұрын
Hey dude can u tech like him ans is no kid
@allan459415
@allan459415 6 жыл бұрын
I too fell in love with transistors and bits sometime ago and have started exploring them deeply. So Hi-Fi!!!!!
@inambe3987
@inambe3987 5 жыл бұрын
He is a good teacher and I loved the tutorial. I want to add something, computer stores bits(0s and 1s) in flip-flops not in transistors. Another thing is that flip-flops are actually combination of transistors and some other electronic components. A single transistor can not represent whole flip-flop.
@ahuttee
@ahuttee 5 жыл бұрын
Damn my computer works so hard to display hentai...
@bibekkumar4839
@bibekkumar4839 5 жыл бұрын
😂😂😂😂😂😂😂....
@bruh-qu2uh
@bruh-qu2uh 4 жыл бұрын
Indeed my man Now imagine if it shows itadaki seikei That would need like a millions of transistors
@Laughing_Cat_Meme
@Laughing_Cat_Meme 3 жыл бұрын
🤔🤔🙇‍♂️🙇‍♂️
@flock65-t5g
@flock65-t5g 3 жыл бұрын
Po**
@TheOG0xdevil
@TheOG0xdevil 3 жыл бұрын
lmao hahahahahahahahahahahahahahahahah
@jamestheking9816
@jamestheking9816 5 жыл бұрын
6:37 "here's the real interesting bit" am i the only one that caught this pun?
@iteratedofficial
@iteratedofficial 4 жыл бұрын
nope.
@FidosMini
@FidosMini 5 жыл бұрын
I love u bro. I was searching this years and finally you explained very well.
@aungko7686
@aungko7686 6 жыл бұрын
This is the best presentation i have ever seen!
@Anuja3991
@Anuja3991 8 жыл бұрын
Great explanation!Thank you!
@lukebonnici5627
@lukebonnici5627 8 жыл бұрын
Thank you so much for this. I'm studying digital electronics and it all makes sense now. I love you brother
@praful4383
@praful4383 5 жыл бұрын
Bro... Transistor doesn't store bits... It only use for processing bits..... Bits stored into capacitors(dynamic ram) or flip flop(static ram)... N microprocessor doesn't store anything.... It only use for processing... Sometime it holds value in its registers.
@theorangecoco
@theorangecoco 5 жыл бұрын
Praful Chavan clip flops are made of transistors
@rafaelache8650
@rafaelache8650 5 жыл бұрын
he got you
@smiiks2691
@smiiks2691 4 жыл бұрын
You can store bits with a special type of transistors called: Float Gate MOSFETs. Flip-flops are made with logic gates, which are made with MOSFETS.
@maskelibalon
@maskelibalon 4 жыл бұрын
Transistor DOES store a bit when used in sequential logic circuits.
@HindiMarketer
@HindiMarketer 5 жыл бұрын
Wonderful boss. What a genius explanation it was! Your have cleared my one of the doubts which was in my mind for years. Thanks a lot . Please make some more videos like this.
@dwisetiawan3111
@dwisetiawan3111 4 жыл бұрын
Same
@jassykat
@jassykat 4 жыл бұрын
Imagine explaining this to a person from 500 years ago.
@tastelesstouch
@tastelesstouch 8 жыл бұрын
This video started out kind of weird but it got really good at the end
@se-58maruaditya71
@se-58maruaditya71 6 жыл бұрын
U are a great teacher brother!! But I will be happy to know in detail about how transistors work😊😊 Thanks for video!
@deepakmuduli6394
@deepakmuduli6394 5 жыл бұрын
Love you presenter..for such an amazing explanation.
@CAR360
@CAR360 6 жыл бұрын
According to me You are the best teacher in IT sectors..👍👍👌👌
@oofoof7282
@oofoof7282 6 жыл бұрын
This is great, no other video helped me but this is perfect.
@rknaik76
@rknaik76 5 жыл бұрын
Very simple and good way of explanation. I don't care about the internals or details but the explanation is very well. Cheers!
@RahulGupta-ly2uu
@RahulGupta-ly2uu 5 жыл бұрын
What are dimensions for pixels are they rectangular or circular in shape
@Alviralifestyle876
@Alviralifestyle876 6 жыл бұрын
Brother.. Your way of explanation win my heart❤❤👌👌 Good job ...keep it up......
@namutolostephen2859
@namutolostephen2859 6 жыл бұрын
Thanks man, I added a like because your time is valuable and you sacrificed it to teach us.
@sabrinaleedance
@sabrinaleedance 4 жыл бұрын
Mind definitely blown. Great video and explanation!!
@Magedamorsy
@Magedamorsy 8 жыл бұрын
You are a freaking good teacher !! Thanks for sharing
@1002225725100
@1002225725100 8 жыл бұрын
What if the computer wants to store gray and green at the different pixels, it will Code the alphabet to "G", then this G will convert to the one to one mapping, and then how will it recognize that the particular G belongs to gray or green?
@ramambati6692
@ramambati6692 7 жыл бұрын
Each pixel represents a color and each color has a different color code (say gray-50, green-51). color code gets converted to binary format (into1s or 0s) .
@ruffsnap
@ruffsnap 6 жыл бұрын
This video explains this concept more easily and just better than literally any other video on KZfaq. Bravo dude!
@eduardoktg8683
@eduardoktg8683 5 жыл бұрын
Answer: Yeah, actually music is stored in 1 0, because the music is a vibration for a thingie turning off and on, and the movie too, videos are combinations of photos, then u add music, ta daa
@haizekhaze8868
@haizekhaze8868 5 жыл бұрын
nice 😌
@Liggliluff
@Liggliluff 4 жыл бұрын
Everything a computer does is in 1s and 0s, and it's incredible how advanced things you can do with just that.
@brahmanaidu784
@brahmanaidu784 5 жыл бұрын
Impressed and subscribed!
@AKSHAYSAMEL03
@AKSHAYSAMEL03 6 жыл бұрын
I never think about this topic...really it's change my mind to look out htings... Thanks!
@alieneargaming4687
@alieneargaming4687 2 жыл бұрын
the way he got that transistor from his back, i can feel his passion.
@user-ik9th1nk9n
@user-ik9th1nk9n 7 жыл бұрын
Thank you so much Sir . This is a great explanation .
@alicomando1195
@alicomando1195 5 жыл бұрын
can i write down alot of ones and zeros and convert it to picture ? to see what it really looks like?.
@cloudstrife1191
@cloudstrife1191 8 жыл бұрын
really great video, simple, well explained thank you
@LessonsInScience
@LessonsInScience 8 жыл бұрын
+Fahad Saleh Thank you Fahad.
@jaishreepatnaik9664
@jaishreepatnaik9664 3 жыл бұрын
you are amazing.... i fell in love with your teaching style... 🙏glad i found u
@abhijeetray1369
@abhijeetray1369 6 жыл бұрын
Awesome sir...no words are enough to compliment u...
@yousufazad6914
@yousufazad6914 8 жыл бұрын
awesome awesome presentation as well as explanation! More!
@sarveshp1727
@sarveshp1727 6 жыл бұрын
Dude we need youtubers like you
@saraabdelfattah8293
@saraabdelfattah8293 5 жыл бұрын
I loved the presentatio and i completely understand what he want to say And i wish to explain How USB connection work ??? by the same way and the same person Thank
@dawalyaka6057
@dawalyaka6057 6 жыл бұрын
easy to understand.. good job!!
@FLEX-on7fu
@FLEX-on7fu 4 жыл бұрын
I dont understand why they don't just store 3 images, with each one being a direct bitmap in each primary colour (RGB). (Ex: red=1, black=0 for the first image, etc.) Won't the information be much more compact?
@muhfatalam9383
@muhfatalam9383 2 жыл бұрын
This is so super simple but I never think that way. Thank you
@mustafaceylan597
@mustafaceylan597 4 жыл бұрын
The logic of 1s and 0s is pretty simple. 1 stands for true, 0 stands for false. Starting from left to right increasing the exponent of 2 (starting from 0) and adding the true members together. Any number can be obtained like this.
@moonandsun4955
@moonandsun4955 6 жыл бұрын
If every thing stored as 1n0s so what's difference between image file stored as 1n0s and mp3 file stored as 1n0s?? Or why my image file isn't playing while I rewrite it's extension as .Mp3 ?? Does anything else also stored in a image binary file to specify it's extension??
@adityayadav3532
@adityayadav3532 3 жыл бұрын
You really explained this well!! Really glad bro love you 😍😍 My computer wasn't able to explain this much
@tushargarg309
@tushargarg309 3 жыл бұрын
Woow, this is such a great video. You explained it beautifully. Kudos to you👌
@martyritz23
@martyritz23 5 жыл бұрын
How is so much information (music, audios, pictures, videos etc) stored inside such tiny micro sd cards? And how is everything stored as 1's and 0's? When would you know one set of numbers ended and another began? And how do these numbers convert into sound?
@h7opolo
@h7opolo 8 ай бұрын
ah, i didn't realize each pixel needs its own transistor. i guess that makes sense and makes it easy to understand.
@vishalghosh6097
@vishalghosh6097 6 жыл бұрын
Man ..u r just great..ur demonstration says a lot ..its clear my concept.. thank u vry much..
@anbar3266
@anbar3266 6 жыл бұрын
Hey dude! you are a born teacher, keep it up, man!
@DeepSukhwani
@DeepSukhwani 8 жыл бұрын
Awesome explanation....
@anjum7872012
@anjum7872012 Жыл бұрын
Many thanks for explaining it so simply! I have a few questions I would be very grateful if you can explain the answers. 1) How does the computer know how much of the square is filled, either white or black. In your example some squarea were partially coloured. 2) How does the computer recognise the colour being used?
@hewhoknowsnothing1989
@hewhoknowsnothing1989 4 жыл бұрын
Dude, you are awesome! You present this HQ-content in a very dynamic and inspiring way! Keep up this great work! Best regards from Germany
@raymondallenjhangiani7670
@raymondallenjhangiani7670 3 жыл бұрын
Very well explained ! Thank you ! 🙏
@sixihili1956
@sixihili1956 Жыл бұрын
thanks a lot for explaining this. but where is the part 2 man ? i am interested in knowing how is for music and videos?
@gajendrasonare
@gajendrasonare 5 жыл бұрын
How transistors are manufactured when they are very small?
@frontendprodesigner4299
@frontendprodesigner4299 6 жыл бұрын
YoungMan a'm from somalia Actually you made very nice presentation thumb👍up gy.. i come here to understand how computer store i didn't come how binary work anyway your information made me to appreciate you..
@user-or7ji5hv8y
@user-or7ji5hv8y 5 жыл бұрын
Really great presentation!
@mariamyoussef103
@mariamyoussef103 6 жыл бұрын
such an easy explanation , thank you
@ahmadmaliklife7404
@ahmadmaliklife7404 2 жыл бұрын
Sir I have a question that if two colors with same first letter what it can do for example. *Black and Blue*
@pfffft24
@pfffft24 7 жыл бұрын
loved it!!!!💗
@DanielMendez-eq2ms
@DanielMendez-eq2ms 5 жыл бұрын
Such a great video!
@virendrakamble4210
@virendrakamble4210 5 жыл бұрын
Just appreciate the things we are getting with computers and smartphones
@momalattique1050
@momalattique1050 5 жыл бұрын
You done a good thing ...it was really helpfull
@medico_ansary
@medico_ansary 6 жыл бұрын
Very good teacher
@nareshnaik6245
@nareshnaik6245 6 жыл бұрын
Really helpful to me Thank you
@yekendeapandey3292
@yekendeapandey3292 5 жыл бұрын
Thank you very much dude.It helped me very much to understand how computer works
@Ajaykumar-ol1se
@Ajaykumar-ol1se 5 жыл бұрын
thanks for the video brother it's awesome and very helpful
@SuperbikeDiscovery
@SuperbikeDiscovery 5 жыл бұрын
Excellent video bro!
@HarshRajAlwaysfree
@HarshRajAlwaysfree 5 жыл бұрын
I already knew this but I still watched If u liked this , u would love crash course computer science 10 times more on KZfaq , its one of most entertaining courses on KZfaq
@omarbastardo4587
@omarbastardo4587 7 жыл бұрын
I would like to know how the image is dsplayed in the monitor
@freecrac
@freecrac 5 жыл бұрын
For true color graphic modes we have to write the content of an image into the framebuffer. And the framebuffer starts in the upper left corner of the screen with one byte for the red part of a colored pixel, one byte for the green part and one byte for the blue part of a colored pixel. If all parts of the color are filled with the highest value and mingled, then we get a white pixel.
@yoursgnan
@yoursgnan 5 жыл бұрын
I like the video very much You make me understanding more deeply this topic Please make videos more and more videos like this
@TheToyBoy
@TheToyBoy Жыл бұрын
Brilliantly explained. Thank you.
@anuragsrivastava5579
@anuragsrivastava5579 6 жыл бұрын
Nice explanation for beginners...thanks sir!!
@chromosoze
@chromosoze 6 жыл бұрын
The only thing that blew my mind was how small a transistor can be. i mean, four atoms? how are you even able to hold it or see it?
@yunaz3545
@yunaz3545 4 жыл бұрын
Yeah and how are They even created
@piyushmahapatra9804
@piyushmahapatra9804 5 жыл бұрын
U r great sir u solve one of my biggest dought 🙏😇🇮🇳
@scotthenry2481
@scotthenry2481 8 жыл бұрын
Amazing translation!
@ajaysakpal2546
@ajaysakpal2546 5 жыл бұрын
Superbly explained bro..👍
@mybest7086
@mybest7086 5 жыл бұрын
Excellent bro easy to understand Keep it up.
@kbhargavaramudu4242
@kbhargavaramudu4242 6 жыл бұрын
I love ur way of saying and explaintion
@jaiveera9894
@jaiveera9894 5 жыл бұрын
Nice video and super explanation sir. please make the how to read the bar code and qr code in scanners. please upload telugu videos.
@kubatuggat8087
@kubatuggat8087 4 жыл бұрын
Is it possible to generate an image without actually capture an image (reference from some other image code)?
@promethuser
@promethuser 8 жыл бұрын
holy, transistors are awesome!!
@LessonsInScience
@LessonsInScience 8 жыл бұрын
+Tanmay Sachan Yes, they are!
@Courier12
@Courier12 8 жыл бұрын
Geeze, then how are these mini-transistors are made and put in the processor if they are THAT SMALL! amazing.
@emiljordan8949
@emiljordan8949 4 жыл бұрын
6:35 "Now here's the really interesting BIT" was that meant to be a pun or did I just make it one...
@tufekci0
@tufekci0 5 жыл бұрын
U can make a video about "how could we managed to make transistors that tiny!"
@Stash836
@Stash836 4 жыл бұрын
Isn't modern pixel stored as 3(sometimes 4) unsigned 8-bit int(r, g, b)?
@MurthyY
@MurthyY 6 жыл бұрын
U got good english than many other indians dude..including myself ;-)
@bikramthapa2687
@bikramthapa2687 6 жыл бұрын
just awesome video , thanks bro
@itoroukpong1107
@itoroukpong1107 6 жыл бұрын
what if a pixel has both white and black? what does it represent that with
@IUfidi
@IUfidi 5 жыл бұрын
My guy, halfway na grey...Abi na 127? BIGUPS!
@kenn756
@kenn756 3 жыл бұрын
Hi what's the algo behind converting 57 and 42 to 0s and 1s?
@creatividad_nula3178
@creatividad_nula3178 8 жыл бұрын
Which course is this? Thanks in advanced :)
@selva81652
@selva81652 6 жыл бұрын
Bro video is amazing.. Really easy to understand... Expecting more videos bro
@technicalexpertise
@technicalexpertise 4 жыл бұрын
You just explained an algorithm behind storage of image
@ahmedmuslim
@ahmedmuslim 5 жыл бұрын
thank you for your style
@russelldriver6394
@russelldriver6394 2 жыл бұрын
Whoa! This blew my mind!!!!! Thank you!
@hadiwibisana5540
@hadiwibisana5540 5 жыл бұрын
Where did you get this lecture from?
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