Definition: All memory locations, whether in RAM or ROM have an address in the range 0 to 4 billion. (Or more accurately 232-1 = 4,294,967,295. Not all addresses in this range are valid- if there isn't any RAM or ROM at the specified address range then an exception will occur if any attempt is made to read or write to an address in that range.
Glossary:
A B C D E F G H I J K L M N O P Q R S T U V W X Y ZExamples:
Accessing a non existent address will generate an exception.

