Editing Personal digital assistant (section)

===Wired connectivity===
While early PDAs connected to a user's personal computer via [[serial port]]s and other proprietary connections{{Specify|date=August 2010}}, later models connect via a [[USB cable]]. Older PDAs were unable to [[USB On-The-Go|connect to each other via USB]], as their implementations of USB did not support acting as the "host". Some early PDAs were able to connect to the Internet indirectly by means of an external modem connected via the PDA's serial port or "sync" connector,<ref>{{cite web |title=Palm PDA Cables |url=http://www.deepwave.net/articles/palm/palm_cables |access-date=21 August 2010 |work=DeepWave |author=Patrick |date=14 December 2006|archive-url=https://web.archive.org/web/20100830100720/http://www.deepwave.net/articles/palm/palm_cables|archive-date=30 August 2010 |publisher=Patrick Khoo}}</ref> or directly by using an expansion card that provided an [[Ethernet]] port.