Navigation systems may be entirely on board the vehicle or vessel that the system is controlling (for example, on the ship's bridge) or located elsewhere, making use of radio or other signal transmission to control the vehicle or vessel.
[3] The company, Etak, was led by engineer Stan Honey and incubated by Nolan Bushnell's Catalyst Technologies in Silicon Valley.
[4] Etak held a number of patents and produced digitized maps for the navigation system.
The early digitized maps turned out to be more valuable than the navigation system.
[4] The car icon used in Etak Navigation display was a vector-based graphic based on Atari, Inc.'s Asteroids spaceship.