Q:Information: - Adrian Carmack (born May 5, 1969) is one of the four founders of id Software, along with Tom Hall, John Romero, and John Carmack (no relation). He had worked there as an artist. He was a major stock owner of id Software until he left the company. - id Software LLC (formerly id Software, Inc., ; see Company name) is an American video game developer headquartered in Dallas, Texas. The company was founded on February 1, 1991, by four members of the computer company Softdisk, programmers John Carmack and John Romero, game designer Tom Hall, and artist Adrian Carmack (no relation to John Carmack). Business manager Jay Wilbur was also involved. - Dallas is a major city in the state of Texas and is the largest urban center of the fourth most populous metropolitan area in the United States. The city proper ranks ninth in the U.S. and third in Texas after Houston and San Antonio. The city's prominence arose from its historical importance as a center for the oil and cotton industries, and its position along numerous railroad lines. The bulk of the city is in Dallas County, of which it is the county seat; however, sections of the city are located in Collin, Denton, Kaufman, and Rockwall counties. According to the 2010 United States Census, the city had a population of 1,197,816. The United States Census Bureau's estimate for the city's population increased to 1,300,092 as of July 1, 2015. - Softdisk is a software and Internet company based in Shreveport, Louisiana. Founded in 1981, its original products were disk magazines (which they termed "magazettes", for "magazine on diskette"). They were affiliated and partly owned by paper magazine "Softalk" at their founding, but survived its demise. - A disk magazine, colloquially known as a diskmag or diskzine, is a magazine that is distributed in electronic form to be read using computers. These had some popularity in the 1980s and 1990s as periodicals distributed on floppy disk, hence their name. The rise of the Internet in the late 1990s caused them to be superseded almost entirely by online publications, which are sometimes still called "diskmags" despite the lack of physical disks. - Alfonso John Romero (born October 28, 1967) is an American director, designer, programmer, and developer in the video game industry. He is best known as a co-founder of id Software and designer for many of their games, including "Wolfenstein 3D", "Dangerous Dave", "", "Doom" and "Quake". His game designs and development tools, along with new programming techniques created and implemented by id Software's lead programmer John D. Carmack, led to a mass popularization of the first person shooter, or FPS, in the 1990s. He is credited with coining the FPS multiplayer term "deathmatch". - John D. Carmack (born August 20, 1970) is an American game programmer, aerospace and virtual reality engineer. He co-founded id Software. Carmack was the lead programmer of the id video games "Commander Keen", "Wolfenstein 3D", "Doom", "Quake", "Rage" and their sequels. Carmack is best known for his innovations in 3D graphics, such as his famous Carmack's Reverse algorithm for shadow volumes, and is also a rocketry enthusiast and the founder and lead engineer of Armadillo Aerospace. In August 2013, Carmack took the position of CTO at Oculus VR, which in 2014 became a subsidiary of Facebook. - Shadow Knights is a platform game created by id Software and published by Softdisk in 1991 . This is one of the several games written by id Software to fulfill their contractual obligation to produce games for Softdisk , where the id Software founders formerly were employed . It is a basic platform game with a considerable influence by the early Ninja Gaiden games . What is the relationship between 'shadow knights' and 'john carmack'?
A:
designer