1.1.4 Abstraction >>> What are abstractions for >>> How Computers Work
By simplifying what a computer does, they make it easier to understand.
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There is no single representation, even at the hardware level, because things are represented differently in computer memory, on hard discs and when transmitted over networks (among other things).
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Compression algorithms typically work on low-level features like numbers.
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You don’t need to understand how each individual image is represented.
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I will discuss latter
There are many different abstractions of a computer; many ways of thinking about them.