What is "sio"

Sió is an artificial channel in central Hungary. It is the outlet of Lake Balaton. It flows out of the lake in the city Siófok. It flows along the city Szekszárd, and a few km east of this city it flows into the river Danube. The river Sió flows through the Hungarian counties Somogy, Fejér and Tolna.

Category:Rivers of Hungary Category:Tributaries of the Danube

__NOTOC__ Sio may refer to:

SIO is a serial port driver package for OS/2 written by Raymond L. Gwinn. It is designed to not only improve performance over OS/2's default serial drivers, but also improve compatibility. SIO contains a virtualized FOSSIL (VX00) driver that can be loaded to provide FOSSIL support to DOS based communications software. SIO later added the ability to create virtualized COM ports, which, combined with the included program VMODEM, allows incoming telnet connections to be directed toward the virtualized COM port. Older communications software are also able to "call out" to telnet sites. This is possible due to a custom set of "AT" commands that allow users to pass a hostname to the VMODEM software. .

SIO (and the included VMODEM software) became very popular among Bulletin Board System operators due to the incoming telnet feature, as well as drastic speed improvements over other telnet solutions of the time.