Categorize the following systems as S-, P-, or E-systems. For each one, explain why it belongs in that category. Identify those aspects of the system that may change.

(a) an air traffic control system

(b) an operating system for a microcomputer

(c) a floating-point acceleration system

(

d) a database management system

(c) a system to find the prime factors of a number

(f) a system to find the first prime number larger than a given number