Anchor: control applies to all information systems-mainframe, minicomputer, network, and enduser environment.
Entailed: There are several areas in which control is applicable.
Contradiction: Only network and minicomputer systems are included in control. 
Contradiction: There was a long quiet pause before she could answer.
Contradiction: I see exactly what is being talked about.
Contradiction: The primary concern was that is was good for the world as a whole.
Contradiction: A few things seem out of place - the sudden change of opinion regarding yourself, for starters.