Altera Quartus II Web Edition 12.1 Software
The web version of the Altera software may be downloaded using the Altera Quartus II Web Edition (version 12.1) Download Site. Download the Quartus II Web Edition 12.1 software. Do not install any older (or newer) versions of the Quartus software as there may be compatibility issues with other software components we will be using in support of the Altera DE2 board.
You will also need to install the University Program software tools as these will be used in designs. The University Program Installer is located at http://www.altera.com/education/univ/software/upds/unv-upds.html. Select version 12.1 of the Quartus II tool when downloading the University Program software.