Get a computer

Its status, hardware and connection details, and when it ends: ends_at (null: never), on_end (read only, what happens then: "delete", or "stop" for a computer whose end was set before every end deleted it; null with no end) and deletes_at (its end for on_end delete; for a computer stopped when its time ran out, ended_at, and deletes_at the day it is deleted unless it is started). An hourly computer running out a prepaid end has prepaid_until (when the prepaid run ends) and prepaid_cents (what is held for it); both are null for a computer billed by the hour and for a plan computer.