Base 2:
 01000001 ==> 65  ==> 'A'

 ASCII -- 1 byte

 Unicode -- 2 bytes

 new data type:

     char c = 'A';



 order of operations (highest precedence to lowest):
 --  parentheses (from innermost to outermost)
 --  exponents
 --  unary - or +
 --  * / %
 --  + -
 -- comparison operators == != > >= < <=
 -- && (and)
 -- || (or)