! Binary number system: base 2
! Electricity has 2 states ON / OFF
! OFF = 0
! ON = 1
! ON-OFF-OFF-OFF-ON-ON
! 100011
! A single binary digit is called a “bit”.
! Bits are group together to represent larger numbers.
! 8 of those bits grouped together form 1 “byte”, which
is generally used to represent a single text character