In video gaming, the HUD or Status Bar is the method by which information is visually relayed to the player as part of a game's user interface.
A video game is an electronic game that involves human or animal interaction with a user interface to generate visual feedback on a video device such as a TV screen or computer monitor.
The user interface, in the industrial design field of human–machine interaction, is the space where interactions between humans and machines occur.
Hud - Trailer by Paramount Movies
It takes its name from the head-up displays used in modern aircraft.
A head-up display or heads-up display, also known as a HUD, is any transparent display that presents data without requiring users to look away from their usual viewpoints.
An aircraft is a machine that is able to fly by gaining support from the air.
Get SMART Series: The HUD by Bethesda Softworks
The HUD is frequently used to simultaneously display several pieces of information including the main character's health, items, and an indication of game progression.