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Will someone explain to me how exactly credit/debit cards and

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Thread replies: 39
Thread images: 4

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Will someone explain to me how exactly credit/debit cards and card machines work? You swipe the card and funds are taken out of your bank account. This blows my mind

I have so many questions right now
>>
>swipe
>>
>>55037063
I forgot about chips

HOW THE FUCK DO CHIPS WORK
>>
you swipe
machine takes information
sends information to bank computer
bank computer says yes or no to transaction based on accounts
sends reply
you either just paid or look like an idiot
>>
>>55037091
I know HOW it works but how is the information stored on a piece of plastic?
>>
>>55037103
same way most information is stored

magnets
>>
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>>55037103
>>55037114
>>
>>55037114
Well now I just have even more questions. How exactly do the magnets store the information
>>
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>>55037164
>How exactly do the magnets store the information
It's not "stored". It's just... there.
>>
>>55037151
its just there in the air

>>55037164
the magnets is essentially divided into many parts that can hold a charge for 1 and no charge for 0
>>
>>55037103
The only information stored on the card is basically your account number. The card machine connects to your bank, says "account number <something> wants to pay 20 bucks, yes/no", and your bank's computers take it from there.

>>55037164
>How exactly do the magnets store the information
In roughly the same way a floppy or a hard drive do.
>>
>>55037164
It's stored in the aether by technogremlins - tiny nanite machines that operate under tight schedules set by the banks. Sometimes they go bad and sell your credit card info to strangers in a bid to get out of their wageslavery job, which I'm sure you can relate to.
>>
>>55037210
>>55037199
interesting. How the heck did people discover how to do this? Maybe you guys aren't experts but I want to learn exactly how it works, because right now all I know is there's a bunch of magnets on a piece of plastic and each magnet either has a 1 or a 0 and the number corresponds to your bank account.
>>
>>55037288
very smart people that worked for IBM
>>
>>55037288
https://en.wikipedia.org/wiki/Magnetic_storage
>>
get a job and quit trying to figure out how to perform credit card fraud
>>
>>55037288
Are you asking how those 0's and 1's translate to human readable data?

I only know about it in terms of machine code to high level programming language, but basically look up how to convert binary to decimal, really cool shit.
>>
More importantly, why is it always Russians and Romanians who steal credit card info?
>>
Op are you actually 12?
>>
is it bad to put 2 hard drives resting on top of each other?
>>
>>55037735
Yes just yes its a bad idea do not attempt
>>
>>55037750
even if they are not plugged in to anything?
>>
>>55037798
Yes just dont do it ok you seem like the kind of oerson who is clumsy and would knock them over
>>
>>55037806
im doing it TAKING THE
RISK
I
S
K
>>
>>55037836
Dont come ceying to us when gou knock them over and shatter them into a million pieces
>>
MAGNETS.
FUCKING MAGNETS.

HOW DO THEY WORK?
>>
>>55037319

IBM says their greatest invention is the IBMer
>>
>>55037055
This marvelous thing called the Internet that you are using RIGHT NOW exists.
>>
>>55037735
No.
Hard drives contain two strong magnets to move the actuator arm. Placing a hard drive anywhere near another drive won't do squat.
>>
>stoner.thread
>>
>>55037735
The vibrations and heat could be a problem.
>>
God I love summer
>>
>>55037164
I think it has to do something with the mutual induction between two circuits (the one on your card and the one of the swiping machine). If the geometry of the whole thing (form and position of your card and the machine's) is constant, so is the mutual induction coefficient. In this way, you can have a clearly defined number that can be associated to your bank account.
>>
I LOVE THIS THREAD
>>
>>55039749
Ok is that how mst with Samsung pay works too?
>>
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This is what the stripe on your card actually looks like. The card reader picks up on those lines and decodes that into useful information.
>>
>>55038087
HOW DOES THE INTERNET WORK?
>>
>>55042098
ikr
>>
>>55042278
>Mr Samy Kamkar
TOPKEK!!
Thread posts: 39
Thread images: 4


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