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Picture the internet as a gigantic, worldwide Lego set. Every brick (like sending an email, streaming a video, or making a secure connection) needs to fit perfectly with every other brick. RFCs are the instruction manuals that say, “Hey, everyone needs to build their bricks this way for things to work together.” RFCs define everything from how computers share files to how packets of data are secured as they zip across networks. They make sure the “language” computers use is universal, no matter the hardware or operating system. (责任编辑：) |