High Quality Content by WIKIPEDIA articles! The Sharp Zaurus is the name of a series of Personal Digital Assistant (PDA) made by Sharp Corporation. The Zaurus was the most popular PDA during the 1990s in Japan and was based on a proprietary operating system. The first Sharp PDA to use the Linux operating system was the SL-5000D, running the Qtopia-based Embedix Plus. The name derives from the common suffix applied to the names of dinosaurs, and was chosen to convey the idea of strength.