iterform system requirements state that you will need at least 512 MB of RAM. You will need at least 100 MB of free disk space to install iterform. The cheapest graphics card you can play it on is an NVIDIA GeForce 6100. To play iterform you will need a minimum CPU equivalent to an Intel Pentium 4 2.00GHz.
iterform will run on PC system with Windows 7 or newer and upwards. Additionally it has a Linux version.