Here is a collection of links to what I consider to be some of the best free

software available for Linux and Windows

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MicroCap 7.0 Demo - Circuit Simulator

The demo version is free for trial use, it is powerful enough

for most student work.

Home page: http://www.spectrum-soft.com

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Scilab - A numerical computation package (similar to MATLAB)

Home page: http://www.scilab.org/

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R - A statistical analysis package (similar to S/S-Plus)

Home page: http://www.R-project.org

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OpenOffice - A complete office suite for Windows/Linux

Home page: http://www.openoffice.org

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Cygwin

A port of the GNU development utilities to Windows. Provides

a C/C++ compiler as well as a bunch of other Unix utilities

(bash, grep, find, tar, less, vi, ...). Now includes an X server for

Windows.

Home page - http://www.cygwin.com/

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VNC

A remote display system that allows you to view a computing

desktop from anywhere on the Internet.

Home page - http://www.uk.research.att.com/vnc/

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Gnuplot - A command-driven interactive function plotting program.

Home page - http://www.gnuplot.info/

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GhostScript -

A postscript interpreter that allows you to preview and print

postscript files (even on non-postscript printers). Also allows

you to convert postscript pages to various image formats

Home page- http://www.cs.wisc.edu/~ghost/

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GhostView - Provides a graphical interface to GhostScript

Home page - http://www.cs.wisc.edu/~ghost/