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start in on a shared_space chapter

Brennen Bearnes 4 years ago
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+7. the command line as as a shared world
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+========================================
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+In an earlier chapter, I wrote:
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+> You can think of the shell as a kind of environment you inhabit, in much
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+> the way your character inhabits an adventure game.
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+It turns out that sometimes there are other human inhabitants of this
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+environment.
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+Unix was built on a model known as "time-sharing".  This is an idea with a lot
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+of history, but the very short version is that when computers were rare and
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+expensive, it made sense for lots of people to be able to use them at once.

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-7. the command line and the web
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+8. the command line and the web
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 ===============================
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 Web browsers are really complicated these days.  They're full of rendering