Emergency Navigational Hologram
The Emergency Navigational Hologram (ENH) was a sophisticated hologram that was designed for use as an emergency navigator during the late 24th century. 

By late century, ENH programs, as well as variations on the "emergency" theme, were all incorporated into the customizable Emergency Hologram basic installation. Such packages were available aboard Kaplan F17 Speed Freighters. ()

Individuals 
 Enoch

Holographic programs