ELI5: Explain Like I'm 5

Non-standard positional numeral systems

Non-standard positional numeral systems are ways of writing numbers that do not use the same 10 digits (0-9) like the system we use every day. Instead, these systems use different symbols in different orders such as 2 and 4 instead of 0 and 1. Non-standard positional systems are useful for computers and mathematics because they can help to make calculations faster and easier.
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