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1996 — Palm (Pilot) PDA
Palm started as a division of US Robotics, and with the introduction of the Palm Pilot, was able to gain its independence. The PDAs from Palm became wildly popular and soon became a household name.
That got Palm in trouble with the Pilot pen company, as the latter sued Palm for using "Pilot". Palm dropped the Pilot name, and products were simply Palm PDAs going forward.
Palm had many features that endured the PDAs to the buying public, not the least of which was the hotsync cradle. Users simply dropped the PDA into the cradle, which was connected to a computer, and all personal data would be synced to both devices.
The PDAs of Palm soon morphed into the Palm Treo, the most successful smartphone of the time. The marriage of PDA functions with the phone turned out to be a marvelous marriage, and the Palm Treo introduced millions to the concept.