What is the difference between automated and manual systems?
"Manual" means "done by hand".
"Automated" means "done automatically".
A manual system is one that you have to control, configure,
change, or drive yourself. Think of a manual transmission on a car;
in order to change gears, the driver has to push the clutch and
then change the gear by themselves.
An automated system is one that changes by itself when a certain
condition is met. Again, in car transmissions, an automatic
transmission will change the gears when the engine reaches a
certain number of revolutions per minute (RPMs).