That's the situation where the phone battery, with no different use by the owner, suddenly drains for no apparent reason. It turns out this is often caused by Google, and there's a simple way to halt the drain.
(April 2014) (Learn how and when to remove this template message) A network host is a computer or other device connected to a computer network. A network host may offer information resources, services, and applications to users or other nodes on the network.
Wikipedia has an article on: presenter. Wikipedia. presenter (plural presenters) Someone who presents a broadcast programme; a compere or master of ceremonies. Someone who presents a thing or person to someone else. (computing) A small handheld device used to remotely control a computerised slide show.