Two's compliment - Representing negative numbers

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The method for this is very simple. Remembering it, however, takes some work, so practice this as much as possible.

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Here's an exam question:

"Represent the denary value -18 as an 8-bit two's complement binary integer"

To convert a negative denary number to binary using two's compliment, we first have to (ignoring the fact that it's negative at this point) convert it's denary value into binary.

I'm using 5

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