define basic data
What we mean when we say "Basic Data" is quite simply that - The information here is at the basics of the game. Unlike the Technology section which goes heavily in-depth into individual branches of technology in the game. For example, in the tools section you'd find Edit Mesh, and it'd simply list what it will do. In the Technology section you would learn instead of Edit Mesh is a tool, Edit Mesh can do this, and this, and so on... It is highly recommended to read the Basic Data before the Technology Data as you will be expected to already know the basics.