Nonogram system requirements state that you will need at least 256 MB of RAM. If possible, make sure your have 512 MB of RAM in order to run Nonogram to its full potential. To play Nonogram you will need a minimum CPU equivalent to an Intel Celeron. Whereas, an Intel Core i3-530 is recommended in order to run it. In terms of game file size, you will need at least 128 MB of free disk space available. The cheapest graphics card you can play it on is an Intel 82945G Express.
Nonogram will run on PC system with Windows XP, 7, Vista, 8, 8.1, 10 and upwards. Additionally it has Mac and Linux versions.