with Silly GIFs
M stands for...
C stands for...
R/X stands for...
P/G stands for...
T stands for...
F stands for...
I stands for...
D stands for...
Nehalem and Sandy Bridge (*2 and *3) are old and probably going away soon
Understand your application's needs
Avoid T series for most production loads
Understand the whole picture
You must automate everything to survive.