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Binary - Coggle Diagram
Binary
Why computers use Binary
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Giving transistors just 2 states means that computer circuits are very cheap and easy to build - they are also very reliable
So why don’t computers just use Boolean logic - True or False?
Computers need to count and perform calculations - so they need a number system
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Denary
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Using the denary system, 6432 reads as six thousand, four hundred and thirty two. One way to break it down is as:
six thousands
four hundreds
three tens
two ones
Place value
Place values are columns to help count,
uses powers of the base numbers
base 10 uses ones (100), tens (101), hundreds (102), thousands (103)
base 2 uses ones (20), twos (21), fours (22), eights (23)
Power
power - a number multiplied by itself,
number^0 = 1
number^1 = number
number^2 = number x number
number^3 = number x number x number
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