Parallel Ports; Connecting Printers; Connecting Modems - Epson CW3S16 Operation Manual

Parallel Ports

Unlike serial ports, parallel ports allow your computer to
communicate one entire byte at a time. Eight wires are
included in the cable to permit the transmission of each of the
eight data bits simultaneously. Extra wires are included in the
cable for control signals. Your Computer uses the industry
standard "Centronics-compatible" parallel printer port
interface.

Connecting Printers

Most, but not all, printers use the Centronics-compatible
parallel port,
To install this type of printer, connect an appropriate cable
between the parallel port connector on the rear panel of the
system motherboard in the main system unit and the input
connector on the printer. Information on the correct cable will
be found in your printer's manual.
serial interface port. See the printer's manual for complete

Connecting Modems

Modems are used to connect your computer to the telephone
line. Since the electronic requirements for the transmission of
your voice are different from those used by your computer, a
modem is used to "translate" your digital information to a
signal that can be sent over the telephone lines.
7-4 Expanding Your System