a) basic information
101 = grundlegende Information (z.B. Political Science 101 = Grundkurs Politikwissenschaft)
The company also released an updated version of its Health Insurance 101 buyer's guide for college students and recent graduates.
Cannes 101: A film festival field guide
(CNN - News Headline)
The term 101 (pronounced one-oh-one) stems from the course numbering system that many colleges in the U.S. rely on. The system uses a three-digit code to classify courses by level, subject area and class sequence.
The first digit in the code is the level, which typically refers to the year. For instance, freshman (first year) classes are assigned a 1, sophomore (second year) classes a 2, etc. So a freshman taking an introductory course in college algebra might sign up for Algebra 101 in the first semester and Algebra 102 in the second semester.
Some colleges use the second digit to indicate a specific area. As an example, if Physics 101 is the introductory course, Physics 121 might cover the basics in quantum physics.
basic, fundamental, elementary, remedial
"Sometimes I feel like I need Driving 101 before getting behind the wheel of today's cars."http://dictionary.reference.com/browse/101
comprising the introductory material in or as if in a course of study (used postpositively): Economics 101; Life 101; It's Jungle 101 on a trip up the Amazon.http://www.macmillandictionary.com/dictionary...
definition of 101
adjective [only after noun]
consisting of only very basic information about a particular subject
Everything in her article is pretty much Economics 101.