HUD- Heads Up Display

Helmet HUD's
HUD's - which stands for Hands-Up Display- was sometimes placed in Mandalorian helmets or clone commando helmets to provide them with all sorts of information, such as searching data bases and uploading maps.

Boba Fett's helmet, in specific, has advanced features that includes information on the surrounding enviornment and a 360-degree vision. As well as information nearby rooms, it could connect with the Holonet and do things that normally would require a computer terminal, such as trading on the stock market and buying real estate from anywhere that had access to the Holonet.

Ship HUD's
Starfighters and combat spacecraft were usually equipt with a HUD, located on the cockpit window. It consisted of a targeting reticle beneath an Outside Threat Indicator Array (OTIA), which notified pilots of successful laser or warhead locks made on another craft, or made by an enemy ship on themselves.