IBM (and the world) are celebrating 50 years of mainframe, "Make the Extraordinary possible". To honor the mainframe, I want to point you to a series of IBM-produced videos from few years back. The series is labelled "THE MAINFRAME: The Art of the Sale", featuring real IBMers and lots of wisdom...
Lesson One:
Lesson Two:
Lesson Three:
Lesson Four:
Lesson Five:
Lesson Six: