* General MIDI, a standardized specification for music synthesizers

Unlike previous games, which had relied purely on General MIDI for music, Hexen is also able to play tracks from CDs.

Some composers may take advantage of MIDI 1. 0 and General MIDI ( GM ) technology to allow musical data files to be shared among various electronic instruments by using a standard, portable set of commands and parameters.

Roland's General Standard, or GS, system included additional sounds, drumkits and effects, provided a " bank select " command that could be used to access them, and used MIDI Non-Registered Parameter Numbers ( NRPNs ) to access its new features.

Yamaha's Extended General MIDI, or XG, followed in 1994.

Member companies of Japan's AMEI developed the General MIDI Level 2 specification in 1999.

* 1987 – Roland MT-32: Also using Linear Arithmetic synthesis, it was supported by many PC games in the late 1980s and early 1990s as a high-quality music option until support shifted to General MIDI sound cards.

* 1991 – Roland SC-55 Sound Canvas: The world's first General MIDI synthesizer.

While many game companies went from FM synthesis or General MIDI in the early 1990s to CD audio and pre-rendered audio, many of the Epic games used the less common system of module music, composed with a tracker, which used stored PCM sound effects sequenced together to produce music.

General MIDI or GM is a standardized specification for music synthesizers that respond to MIDI messages.

Two GM System Exclusive (" SysEx ") messages are defined: one to enable and disable General MIDI compatibility mode ( for synthesizers that also have non-GM modes ); and the other to set the synthesizer's master volume.

A superset of the General MIDI standard, added several proprietary extensions.

GS was introduced with the Roland Sound Canvas line, which was also Roland's first General MIDI synth module.

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* GM Atlas engine, a family of truck engines from General Motors

Retired General Motors | GM bus

* General manager or GM

* 1993 – General Motors sues NBC after Dateline NBC allegedly rigs two crashes intended to demonstrate that some GM pickups can easily catch fire if hit in certain places.

General Motors Company, commonly known as GM ( listed General Motors Corporation before 2009 ), is an American multinational automotive corporation headquartered in Detroit, Michigan, and the world's largest automaker, by vehicle unit sales, in 2011.

General Motors produces cars and trucks in 31 countries, and sells and services these vehicles through the following divisions / brands: Buick, Cadillac, Chevrolet, GMC, Opel, Vauxhall, and Holden, as well as two joint ventures in China, Shanghai GM and SAIC-GM-Wuling Automobile.

In 1908 it moved into the automotive field, before becoming a subsidiary of the U. S .- based General Motors ( GM ) automotive group in 1931.

After becoming a subsidiary of GM, the company was named General Motors-Holden's Ltd, becoming Holden Ltd in 1998, with the current name adopted in 2005.

The firm became a subsidiary of the US-based General Motors ( GM ) automotive group in 1931, and resultantly retitled General Motors-Holden's Ltd.

In 1998, General Motors ( GM ) purchased the brand name and marketed three vehicles: the original Hummer H1, based on the Humvee ; and the H2 and H3 models that were based on smaller, civilian-market GM platforms.

GM was responsible for the marketing and distribution of all Hummers produced by AM General.

AM General continued to build the H1 until it was discontinued in 2006, and was contracted by GM to produce the H2.

* General Motors Shreveport Operations, Shreveport, Louisiana – in 2005, to accommodate the production of the H3, an additional were added to plant built by GM in 1981.

* GM Iron Duke engine, the nickname given to a 151 cid ( cubic inch displacement ) 4-cylinder internal combustion engine used in many 1980s-era General Motors automobiles, pickup trucks, and the United States Postal Service's LLV Mail trucks

In March 1929, General Motors ( GM ), impressed by Opel's modern production facilities, bought 80 % of the company, increasing this to 100 % in 1931.

In 1968 GM Hydramatic ( the automatic transmission division of General Motors ) issued a request for proposal for an electronic replacement for hard-wired relay systems.

The most common 60 ° V6s were built by General Motors ( the heavy duty commercial models, as well as a design used in many GM front-wheel-drive cars ) and Ford European subsidiaries ( Essex V6, Cologne V6 and the more recent Duratec V6 ).

General Motors did not succeed in having a Wankel engine meeting both the emission requirements and having good fuel economy, so in 1974 the company canceled its development, although GM claimed having solved the fuel economy problem and having obtained engines with a duration above 530, 000 miles ; unfortunately they just published a few papers on the results of their research.

* February 8 – General Motors sues NBC, after Dateline NBC allegedly rigged 2 crashes showing that some GM pickups can easily catch fire if hit in certain places.

Chevrolet (), also known as Chevy (), is an American brand of vehicle produced by General Motors ( GM ).