| A | B |
|---|
| Technology | the use of accumulated knowledge to process resources to satify human needs and wants |
| Resources of Technology | people, information, tools and machines, energy, capital, and time |
| System | a means of achieving a desired result through to processing of resources in response to a command input |
| Sub-system | a small system that, together with other sub-systems, makes up a larger system |
| Open-loop System | a system that does not use information about the output(s) to affect the process |
| Close-loop System | a system that uses feedback to affect the process |
| Input | the command entered into the system; the desired results of the system |
| Process | the part of the system that combines resources to produce an output in response to a command input |
| Output | the actual result obtained from a system |
| Feedback | using information about the output of a system to modify the process |
| Monitor | to observe (watch) the "output" of a system |
| Trade off | an exchange of the "benefits" in one solution for the "disadvantages" in another solution |
