1. A Linmodem is the Linux implementation of a "winmodem" (see disclaimer). These devices are 'less than' a modem in the sense that they depend on software to perform, to a greater or lesser extent, the functions traditionally handled by modem hardware. The rationale for this is, of course, that software is cheaper than hardware, and can be upgraded/expanded/improved without the use of screwdrivers (usually); however, for the modem to function at all, one requires software that can run on one's preferred operating system. From Linmodem-HOWTO