Real numbers – Fixed Point Binary
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So far we have seen how we can express whole numbers, both positive and negative using binary but we also need to understand how we can express fractional numbers, that…
2024
What’s with all the negativity, “twos compliment”?
The concept of the minus symbol is very useful. Without it we could not perform subtraction, keep track of who owes money to whom, how many degrees it is below…
Bit Shifting
There is a very simple method that can be used to multiply and divide binary numbers. This method is called bit shifting. Shifting Bits What is the easiest multiplication that…
Add like a computer
How do computers add? To understand how binary addition works, it is useful to first think about how addition works in general and it is probably easiest to consider how…
Powers of Two
Computers use patterns of binary values to represent absolutely everything (including the numbers and characters to graphics and sounds in computer games). It’s very important to know how exactly how…
Count like a computer
To understand how computers use binary and why binary works we need to step back momentarily. Lets think about how numbers and counting works in the way we are used…
Staying Safe
Moving up to secondary School As you move up to secondary school you or your friends may start using a smartphone more and more. Your social interactions may begin to…