Bitcoin is a decentralized digital currency based on the open source protocol created by a pseudonymous developer named Satoshi Nakamoto.

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What is Bitcoin? [closed]

Can someone explain what exactly is Bitcoin?
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Using PCIe risers, how many GPUs can fit on one motherboard and what power supply would it require? [duplicate]

I'm going to make my own mining rig for bitcoins. I have a friend who's going to build me a custom casing for it so it will be open air. Now what I want to know is how many GPUs can be crammed onto ...