An engine is something that produces some effect from a given input. The origin of engineering was the working of engines. There is an overlap in English between two meanings of the word "engineer": 'those who operate engines' and 'those who design and construct new items'.

Usage of the term

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In original usage, an engine was any sort of mechanical device. The term "gin" in cotton gin is a short form of this usage. Practically every device from the industrial revolution was referred to as an engine, and this is where the steam engine gained its name. This form of the term has recently come into use once again in computer science, where terms like "search engine", "3-D graphics game engine", "rendering engine" and "text-to-speech engine" are common. The earliest mechanical computing device was called the difference engine; Military devices such as catapults are referred to as siege engines.

In more recent usage, the term is typically used to describe devices that perform mechanical work, follow-ons to the original steam engine. In most cases the work is supplied by exerting a torque, which is used to operate other machinery, generate electricity, pump water or compress gas.

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Chamber to sponsor Consumer Business Expo at Ocean County Mall (Asbury Park Press)
Fri, 08 Feb 2008 09:46:51 -0000
About 40 area businesses are expected to participate in the Toms River-Ocean County Chamber of Commerce's annual Consumer Business Expo at Ocean County Mall this weekend.
How the Big Squeeze is going to affect you (The Australian)
Fri, 08 Feb 2008 13:00:00 -0000
The Reserve bank is using interest rates to slow our overheated economy - and it will have far-reaching effects for all of us
Siemens Industry Sector Reports 'Strong Positive Reaction' to Siemens PLM Software NX 5; Announces Major NX Customer ... (The San Francisco Examiner)
Tue, 05 Feb 2008 17:00:13 -0000
PLANO, Texas, Feb. 5 /PRNewswire/ -- Siemens PLM Software, a business unit of Siemens Industry Sector and a leading global provider of product lifecycle management (PLM) products and services, today announced that Siemens Industry Sector reported "strong positive reaction" to Siemens PLM Software's new NX(R) software as well as a series of major NX customer implementations across key industries.
Dr Cullen is right; tax cuts alone not enough (Scoop.co.nz)
Fri, 08 Feb 2008 03:20:44 -0000
Dr Cullen is right to point out that for our incomes to rise we need to increase our productivity and only business can do that, the Employers & Manufacturers Association (Northern) says.
Letters to the Editor (The Rockingham News)
Fri, 08 Feb 2008 11:01:27 -0000
bid to buy YWCA

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