sleep

The stateA broad term that can apply to a lot of systems. Let’s say you have a system that can be one of two ways – on or off. That “on-ness” or “off-ness” is the state of the system. The system is either in an on state or an off state. Many different kinds of systems can have many different kinds of state. There are many complex branches of engineering or physics or even mathematics that deal with state. The easiest way to think of any of them is, “the way things are” (which may depend on the history of prior states, meaning how they got to this particular state). of a machineIn our context, a machine is anything that isn't human (or living). That includes electronic equipment like computers and phones. where as many non-essential electronic elements as possible are shut down, without powering the machine completely down.