- Pei An, University of Manchester The main links with your PC
and the outside world are the centronic port, used for
connecting the printer, the RS232 port, used for the mouse, and
the games port for a joystick. This book explores how these
input/output (I/O) ports can be put to use through a range of
other interfacing applications. This is especially useful for
laptop and palmtop PCs which cannot be fitted with internal I/O
cards. A novel approach is taken by this book, combining the
hardware through which the ports can be explored, and the
software programming needed to carry out a range of
experiments.Circuits are provided for simple testing tools, and
three experimental boards - which can also be purchased ready-
made. Ready-to-run TurboPascal programs are available on the
Newnes web site.A huge range of applications are considered,
turning the PC into a flexible core of a variety of systems.
External devices considered include opto-isolator drivers, power
drivers, LED drivers, relay drivers, special driv