Hot Lines and Holograms, By Jean Yates, Page 29, 2 Mar 1981, InfoWorld, Atari's "Cosmos" hand-held game uses game cartridges similar to those of the ... and game products at the Consumer Electronics Show, Atari maintains its image ... Shack, Apple, Commodore and other computers a run for the money in 1981.
Page 180, By Sean F. Johnston, Holograms: A Cultural History, Atari, the electronic game manufacturer, trialled a hand-held electronic toy in 1981
oocities.org
Atari Cosmos, Planet Irata, In 1978, Atari engineer Lyle Raines began working on an outer space game for a holographic game system Atari was developing called Cosmos....Atari announced the system in May of 1981, and said the unit would retail for $100, with eight cartridges...
wired.com
Buy An Original Atari “Cosmos” Hologram, By Chris Kohler, 2007-06-21 WIRED, Dan Kramer, an ex-Atari employee (he created the trackball controller for the 5200!), is auctioning off some seriously rare pieces of Atari memorabilia: holograms that were going to be used for the never-released Atari Cosmos handheld system, which was going to project LCD games over swappable holographic backgrounds. This would have been included with an Asteroids game...