Mercurial > repo
view wisdom/block device @ 12023:f79df0b509c8 draft
<b_jonas> fetch bin/whatis https://hack.esolangs.org/get/bin/whatis
author | HackEso <hackeso@esolangs.org> |
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date | Thu, 14 Nov 2019 23:42:08 +0000 |
parents | 272663b31668 |
children |
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Block devices are a concession made in Unix to make raw hard disks and magnetic tape have a similar interface to regular files and terminals. Since magnetic tapes can't write individual bytes, only entire blocks, the interface isn't exactly the same, thus the dreaded dd obs= option was born.