Each version has different requirements, but they are reasonable. Before download, check the requirements of each version in their info box before download, unless you have very high specs (3840x2160 resolution, 500 GB available Disk space, 4 GB RAM, 64 bit or higher architecture, Windows 7, 8, 8.1, 10, 2012, 2016, 2008, Ubuntu 14.10 and above, Mac OS X 10.12 and above, Fedora Workstation 23 and above)