Machine Translation Post Editing (MTPE), also known as automated, automatic or instant translation, is essentially (as you may expect) a process according to which a translation is (initially at least) entirely carried out by a computer. It first appeared in the 1950s; however, nowadays it has become increasingly popular, due to the rise of translation demand.
Machine Translation is checked by a human for accuracy, grammar, completeness, consistency and correctness for the target audience.