I have been programming for previous four years on various platforms using various programming languages,a short list of which is given below:
programming language: c, c++, java, tcl/tk, python, perl, scheme, visual basic,
ruby, shell scripting
toolkits/ API's : Gtk+, qt, MFC, swing/jfc
operating system: linux, unix, windows
database: mysql, postgresql, sqlite, oracle, ms access
web technologies: html/xhtml, javascript, php