Binary, Bits and Bytes - A Level Physics

Published: 10 December 2020
on channel: Physics Online

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This video introduces and explains binary, bits and bytes for A-level Physics.

The binary numbering system displays all numbers with just 1s and 0s, for example the number 4 in the decimal system is represented as '100' in the binary system. Binary digits are called 'bits' can be thought of as a 'bit' of information. The number of bits used is a measure of the number of alternative values. The number of alternatives is equal to the number of bits to the power of 2 i.e. N = 2^b. 8 bits gives us 256 alternatives, this is called a byte. The difference between bits and bytes is simply that 1 byte = 8 bits = 256 alternatives.

Thanks for watching,

Lewis

Relevant for A-level Physics in the following exam boards:
CIE
OCR B

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