FAX (Facsimile) is an ancient technique for exchanging black and white
bit images between computers. It has poor resolution and no error correction.
However, it is compatible with thousands of FAX
machines over the planet. FAXSAV is a way of using the Internet, rather than long
distance phone lines, to do the bulk of the delivery, expecially for broadcasting.
FAX is an ugly technology
that refuses to die. Unfortunately, the competition, EMAIL enclosure, which allows
arbitrary resolution, compression, colour, sending of very compact, editable word
processing documents etc. is stuck in the stone age and refuses to evolve either.