What is a cookie?
ฝัง
- เผยแพร่เมื่อ 20 มิ.ย. 2012
- If you read the news every now and then, you've probably heard of cookies on the internet. But what exactly is a cookie?
When cookies were 'invented', they basically were little documents containing helpful information about you and your preferences.
For instance, imagine selecting a certain language for a website you'd visit. You'd tell the website: "Hey, I'd like to view your website in, say, English." The website would then save that information to a little document - a cookie on your computer.
The next time you'd visit that website, it would be able to read the cookie it saved earlier. That way, the website could 'remember' your language and let you view the website in English, without you having to select your language again.
Pretty handy, huh?
But cookies are not limited to remembering just your language. In fact, a cookie can contain pretty much any kind of information. It can contain the time you visited a website or it can contain the items you added to your shopping basket. It can even contain all the links you clicked on a certain website, much like leaving a breadcrumb trail on the internet. A cookie can only contain so much text, but apart from it's size the possibilities are endless. What exactly is saved to a cookie, is up to the creator of the website you are visiting.
Now, in contrary to the stuff a cookie can contain, there are limits to who can read your cookies. Imagine you first visit the website we talked about earlier, and you tell that website that your language is English. This is then saved to a cookie on your computer. If you'd visit a different website later, the latter wouldn't be able to read the cookie from the first website. In other words; only the same website that saves information to a cookie can access it.
Since the beginning of cookies, the popularity of these clever little helpers exploded and they gradually evolved into a more complex, yet essential part of the internet.
During their evolution, the amount of data cookies contained started to grow. At first they'd contain just a few preferences like your language and maybe your preferred layout for a website. But soon developers realized that the more information they could store about you, the better they could suit your needs. Cookies started containing more and more data, and eventually started pushing their size limitations.
Subsequently, developers came up with a clever workaround. What if they would simply store a unique id in a cookie on your computer, and save the rest of the data in their own system? That way, they could save unlimited amounts of data. The cookie would simply serve as an identifier for your computer, much like a dog tag by which the website can recognize you and look up your data in it's own system.
This was the first leap towards so called third party cookies. As mentioned, only the same website that saved data to a cookie can access it later. But one website can actually contain bits of another website. These bits and pieces of other websites, embedded in the website you're visiting, are actually able to access cookies they saved to your computer earlier.
Imagine visiting a news website. Apart from news articles, many news websites contain a couple of ads. These ads are in most cases bits of other websites, embedded in to the news website. Now, the news website you're looking at may not have saved any cookies to your computer and thus know nothing about you. But where do the ads come from?
It's not unlikely that the ads on the news website are embedded from the same website as the ads on another website you visited earlier. In fact, you may visit dozens of websites with ads which are all embedded from the same website.
So what does this mean? This means that, if the website the ads come from has saved a cookie to your computer earlier, it can identify you - and save information about you -through other websites. So while you're reading that news website, shopping for new shoes, looking up cures for a headache or reading the latest gossip, the ads on those websites can identify you, look up your information in their own system and dynamically show ads that you're most likely to be interested in while simultaneously saving information about what you're doing online.
So is this a bad thing? Are cookies dangerous? That depends, really. It is up to the creators of a website to determine what information they do and do not store, and more importantly; what they use that information for. Cookies are a tool. Just like a hammer, or a saw, they can be used for bad things, but they are intended to be used for good things. The responsibility lies with the people putting them to use.
Cookies in a nutshell. Visit www.adversitement.com for more information. - วิทยาศาสตร์และเทคโนโลยี
If teachers explained their lecture materials in this manner most of the students would be geniuses.
yes I have a teacher like this and its so much better but all other r like im tierd heres a packet im never going to grade
Those who wants to be "genius" will automatically find these videos
+Emir Omeragic Yeah I agree! It is engaging and interesting to follow ...
to true
True
This is how an educational video should look like! Especially the graphical implementation. Very good! Thanks.
You're welcome Maťo! We love to help our watchers. If you need help on other subjects; feel free to suggest new ideas!
@@Adversitement making a graphical video of each topic is very tough.... Because now a days teacher is not just teach students, but lot of things to do in institute in favour of institute... SO now a days for teacher ---> Teaching -10% and other task of institute - 90%... According to your statement it is possible when teacher give their 100% time for teaching quality.... I am very sorry for writing this kind of stuff.... because I am also a teacher by passion.... :(
university, lectures, classes are not capable of producing such kind of content. youtube you have created so many geniuses. bow to you.
Very instructive video, well explained and simple comprehensible language. The graphics add good support to the development of the theme. Congratulations! This was of great help. :)
Honest sincerity is so inspiring to hear!
Thanks, Daniel. We love to help people. If you have suggestions for new videos about new subjects; let us know!
0
Daniel kip can you help me somewhere here please
One of the BEST explanatory presentations ever.... across ANY topic. Brief, simple, articulate... just got the job done.
Forget Cookies, this is simply a MODEL Presentation. 👍
And now i'm turning off my cookies.
You're in control!
I like cookies. They allow me to see relevant adverts of things I may actually be interested in.
@@Adversitement so if we don't agree with the use of cookies they are not able to store that id and get my data right? And can they get data such as personal photos or videos and stuff like that? Thanks
There's no free lunch.
So I guest U don't like eating cookies. NICE!
Watching in 2020, still better than my class teacher who taught me about computers and stuff.. A very clear and to the point explanation.. Thank you.
Very helpful, since I just heard about cookies today. I asked my dad, "Why do I have so many things popping up on my screen?" He tried to explain it, but then he just said, "Here, watch this."
Thank you for explaining it better than my dad. We will fix it tonight, together. ;-)
ate a cookie while watching a video about cookies so I can learn about cookies.
Sounds like a good combination
How did it taste?
tyler wallpaper HD
英語聽不懂，請改用國語發音，謝謝
我们就像你不懂你的语言。 我只是使用谷歌翻译来告诉你这一点。 谢谢
I had been reading cookies from my book for the past 2 years before every computers exam and I memorized it, more or less, temporarily. I'm not forgetting them tgis time though, thanks to you! Great work guys!
The reason they call it cookie is like when you eat a cookie you just keep on taking it and so you under stand
internet is no safe place
sunrise209 - gotta pay by their rules or else . . . .
L
The animations were incredibly helpful to explaining the concept.
Then comes the NSA taking a look at everyones cookies
no no no
IT IS MY COOKIE !!!
Cookie misterio
Constantin Lucía
Constantinopla cometer una falta de ortografía; cometer una infracción de tránsito; cometer un robo; cometer un crimen organizado.Lucometer una falta de ortografía; cometer una infracción de tránsito; cometer un robo; cometer un crimen . ciudad real con el archivo adjunto de este correo electrónico en busca
Crist
This might be seven years old but it is still very informative and a gem amongst the many more recent ones...
Thank you so much, literally one of the most useful videos I've ever seen, very good intonation and fluence in narrator's voice too 👍
Very helpful video on building an understanding of online cookies, Thank you. This information was much needed!
this is the finest explanation i have found anywhere. excellent excellent job
I don’t think anyone could find a better explanation of cookies this video.
I love the serenity and quality of this video
Thanks! For more information and video's, check our Twitter page.
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Thank you, very clear and well explained.
I really love the way you teach about cookies.
That's called "TO THE POINT -->"
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Great, simple, clear video. The graphics also greatly enhanced my learning!
Great!!! Appreciate the teaching skills, very much informative. Thank you
This is the best and clear presentation I have seen in YT
Finally someone who explains things in proper English, without an accent that makes it almost impossible to understand. Thank you !
I think that people not wanting to allow cookies (or not wanting Google to know anything about you) is mostly caused by mass hysteria; their afraid of sharing personal data online.
But unless you're wanted by the police (or planning a crime) : what do you have to hide ? What are you afraid off ? Just be careful how you handle your bankaccount data online (and other, very personal, intimate, data).
The mailman (and many others , like your bank, townhall, etc.) know your name, adress and much, much more.
Allowing cookies just gives you better and faster search results.
Just my personal opinion, though.
Good explanation of cookies. First time I got complete idea of how cookies work.
Thanks! For more information and video's, check our Twitter page.
twitter.com/adversitement
awesome explanation on cookies.....i always used to wonder about the advertisements on different sites and how exactly information is stored from one website to another....
Lucid and visually appealing.
Great to 'hear'. Thanks!
great work on explaining what cookies really is!
Thanks, Joshua!
Make more videos like this, please. This video was great!!!!
NSA hands off my cookies
Thanks a lot for the clear explanation!
cookie is like the user preference so the site remembers it, while the cache is to keep the files so your website loads faster next time
I always mess up between these two
Very good and simple video. Thanks.
Why is cookie such a cute word? it's like a tiny puppy that you just want to squeeze.
Good way of presenting the cookies concept.
Great stuff! So easy to explain. Thanks for your help guys!
Thanks! For more information and video's, check our Twitter page.
twitter.com/adversitement
Ur video making skill is ossum..... Loved Ur video and audio too .... Helpful!! Thanks
Just wanted know basically what is cookies, I got enough information. Thank you!!
I really loved your explanation !!!
The "Cookies in a nutshell" at the end 4:25, 'cracked' me up :P
How is this doesn't have a million views yet
You are a very good teacher. Thank you.
This is very helpful. u guys are amazing!!
Thanks Irteze!
This video is literally perfect.
I remember that I was soo happy when I first got the cookies working on my website. The first time you visited it would ask for your name. And the next time if you entered a name, it would welcome you
Thank you for explaining this.
Thanx for such a lucid information
Very awesome video, just searched on Google 'n said nahhh..but, hey! Visualisation and photomemory is the key to remember stuff. Awesome man, two thumbs up and subscribption coming up from a designer. Salute, pal.
nicely explained in just 5 minutes.
Amazing .... Simple explanation & masterclass animation .Thanks
thanks. really helped me understanding cookies
THAT'S WHYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY I KEEP SEEING COOKIES
Beautifully explained
Great and very helpful video.Thanks!
Such great explanation, really informative
Very informative and easy to understand. Thank you so much for this Video.
Thanks! For more information and video's, check our Twitter page.
twitter.com/adversitement
But what does it mean hen someone wants to send you a cookie? Like, what would be in it and how would you access it or whatever???
Wow!!! Fantastic explanation.😍😍
great explanation!! my personal compliment
This is so well explained! You have a gift for communication! Thank you so much.
Thanks! For more information and video's, check our Twitter page.
twitter.com/adversitement
Very lucidly and comprehensively explained...
Thanks! For more information and video's, check our Twitter page.
twitter.com/adversitement
I'm so tired of closing a cookie pop up then a add pop up then an discount pop up to see two things on a webpage. Often I just back out.
amazingly explained loved it thanks alott it helped me alott!! hats off:)
I'm one of the many people who just say no to cookies on websites because they're basically just spam at this point.
wow.....what a visual presentation ....thanks a lot
Thanks this is very helpful! ;)
Great explaination
That was really helpful thankYou
Best explanation I have seen so far
Thank you. It helped me.!
Thank you for the amazing video !!
It sounds so cute
THis is more realistic than another other tutorials...the examples are the best explanation
Sir,
Video was amazing. Keep it up.
Please sir tell me what softwares have you used make this video.
Thank you sir.
Really the video was very nice
Very helpful. Thanks.
Thx for explaining
wow if there was a test on this i would get an A for sure
Great job!!
I learned ALOT. Thx:)
great explanation!
awsome ! now I get it better ! thanks
Very helpful, thanks guys!!
Thanks Britt, you're welcome;)!
This video teaches me better than my 6 months lectures.
Anyway, anyone know what app they use to edit this kind of animation video? It's actually very fun to watch
thanks Man...nice description.
Thanks, Subroto!
thank u so much for this explanation, it was really clear
Thanks! For more information and video's, check our Twitter page.
twitter.com/adversitement
This video was amazing, helped so much.
Nice to read, Dana. If you need more help; feel free to contact us.
Which App do You Use Buddy To Create These Awesome Videos??
A cookie is a delicious treat
Good explanation man
I could understand the ads part. Starting from 2:47. It shows that user information saved in a cookie when a user visits different websites, but where that cookie saved? on the server the website i visited early? Let me give you example of what I did not understand. I bought stuff from Home Depot, Amazon, SoftMoc etc. Now when I go to my Hotmail email I see ads about items I bought from these sides. So Hotmail site is using HomeDepot, Amazon etc cookies? If yes where these cookies saved? and How got linked to Hotmail. I am so confused!
Thanks a lot. What a great video!!
You're welcome, Trif. Shall we make another one?
amazing materials, thank you!
wow!
what a perfect clarification!
Best explanation ever
very awesome explaination
That is why ticket booking is always expensive.
Now that's how education Should be.
Simple stuff explained in simple way.
Can someone please help clarify: Do both the main website I visit, and, the embedded website (e.g. ads website) both keep their own cookies? So there can be many cookies files created when I visit a single website?