Go to the download page You already have Ubuntu installed and now you are looking for suitable programs to use? Enter your fields of interest and pre-configured bundles can be downloaded. Continue

Create a USB key You don't have Ubuntu installed. You can download the operating system Ubuntu for testing (as a live system) or for installing it on your computer, with the software you need. Select your software bundes and create an iso image file from it... Continue

Create a Live-CD ... or burn it to a CD or DVD. Continue