PDA



The PDA (Personal data assistant) is one of Doom 3's most useful items. It acts as a media player, email reader and access key for restricted areas.

Besides the player's personal PDA, other PDAs can be picked up and scanned to read helpful hints (including backstory, hints to monster types ahead, and combination codes for lockers).

Some NPC's carry PDA's on them, and can be killed to collect them.