Device
A device is usually a constructed tool. Device may also refer to:

Technology

Computing 
 Device, a colloquial term encompassing desktops, laptops, tablets, smartphones, etc.
 Device file, an interface of a device driver
 Peripheral, any device attached to a computer that expands its functionality

Warfare 
 Improvised explosive device (IED)
 Nuclear weapon

Other uses in technology
 Appliance, a device for a particular task
 Electronic component
 Gadget
 Machine
 Medical device

Arts, entertainment, and media

Music

Groups
 Device (metal band), American industrial metal band active 2012–2014
 Device (pop-rock band), American pop-rock trio from the mid 1980s

Albums
 Device (Device album), 2013
 Device (Eon album), 2006

Other uses in arts, entertainment, and media
 Plot device, as in storytelling
 Rhetorical device, a technique used in writing or speaking
 The Device, a 2014 American science fiction horror film

Other uses
 Dev1ce or Device, nicknames for Nicolai Reedtz, a Danish professional CS:GO player
 Device, something that can be trademarked, such as a logotype (or "logo") in printing or in law
 Devices, aspects of a military-award decoration in the United Kingdom
 Personal device, another name for a heraldic badge

See also
 Devise (disambiguation)