The Primitive Data Types are data types that are used in every day in programming and usually correspond to the most basic building blocks of all the other Objects or data types you will be programming with down the road.
Viewing entries posted in June 2011
Topically, hexadecimal is extremely useful for programmers to understand, and makes binary in general quite a bit easier to work with and represent both in code and out.
Though not as important as understanding binary in general, looking at some simple math in binary will allow you to conceptualize some of the operations that you will be working with on a regular basis.
I personally believe that a basic, if not strong, understanding of the binary (or base 2) counting is crucial to understanding how computers work. And, thus, to being a good programmer.