Personal Digital Assistant (PDA) device, "Casio Cassiopeia E-10 Pocket PC," 1998 - Museum of History and Industry - University of Washington Digital Collections
Palm PDA Repair - iFixit
A Palm Pilot (and other early 2000s Personal Digital Assistants) Appreciation Thread | ResetEra
The Golden Age of PDAs | PCMag
The Golden Age of PDAs | PCMag
PDA | Definition, Meaning, History, & Facts | Britannica
The rise, fall, and rebirth of Palm
It's weird to see people not recognising tech things of the past (PDAs/handhelds) | NeoGAF