A System is a means of getting a desired result; as such, all
forms of technology are systems. Different technologies can be
grouped into the following systems:
Communication Systems
Transportation Systems
Construction & Manufacturing Systems
Bio-Related Systems
The Problem-Solving Model
Input is the result you want;Process is the use of resources to
solve the problem;Output is the actual result you get; and Feedback is the
information you receive in order to make changes, adjustments, etc. An Open-Loop system is one with feedback,
while a Closed-Loop system has no feedback. (usually not real useful).