Binary Flashcards

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1
Q

what do the 1s and 0s represent in a computer

A

whether the current is flowing or not

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2
Q

what is the maximum value that can be stored using

A

2n - 1

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3
Q

how to carry out twos complements

A

write the original number in binary then flip the ones and zeros but add 1 to the end

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3
Q

what happens in twos complement

A

the highest number is negative

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3
Q

what is the minimum value that can be stored using unsigned binary

A

0

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4
Q

how to do fixed point representation

A
  • make the highest number (16) negative
  • after 1, do 1/2, then 1/4
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5
Q

how to do floating point representation

A
  • ## the highest number changes, but is still negative
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6
Q

advantages of using floating point representation over fixed point

A

just by using 8 bits, we can increase the size or accuracy of the number if we require

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7
Q

disadvantages of using floating point representation

A

we now need to store where the binary point is on the number line as well as the number that we want to store

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8
Q

in floating point representation, what are the fractions called

A

the mantissa

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9
Q

in floating point representation, what are the whole numbers called

A

the exponent

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10
Q
A
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