2024-10-24 20:15:18 +01:00
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---
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tags: [ARPANET, computer-history, networks]
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created: Wednesday, October 23, 2024
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---
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# 653c0b1d_host_protocols_of_ARPANET
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The responsibility for enabling communication between nodes fell to the hosts,
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not the [IMPs](e470bf3d_IMPs_in_the_ARPANET.md). At the lowest level (equivalent
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to the [link layer](Link_Layer_of_Internet_Protocol.md) in the subsequent
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internet?), this consisted in moving raw bits between hosts regardless of what
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2024-10-25 09:51:23 +01:00
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specific type of data they encoded.
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2024-10-24 20:15:18 +01:00
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In the book (_Where Wizards Stay Up Late_), there is a great description by
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analogy:
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> Some water out of the tap is used for making coffee, some for washing dishes,
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> some for bathing. The pipe and the faucet do not care about this; they convey
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> the water regardless.
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