Many simulation and demonstration programs of slide rules have
been designed.
The following demonstration can be clicked straight away, to emulate a
powerful
Pickett 909 slide rule
http://www.antiquark.com/sliderule/sim/n909es/virtual-n909-es.html
This beautiful demonstration was made available by Derek Ross.
A very simple demonstration version of a shareware slide rule
can be downloaded here
(zipped executable file of 256 KBytes) :