Pedigree Assistant requires a computer with Windows 10, Windows 8, Windows 7 or Windows Vista. Windows XP and earlier versions are not supported. A minimum of 1Gb memory is recommended. In practice, any PC with Windows that is less than 6 years old will almost certainly be sufficient to run Pedigree Assistant. Obviously you also need a printer to print out your pedigrees - any printer that works with Windows should be sufficient, such as a typical inkjet or laser printer.
Mac Users: you can also run Pedigree Assistant but you must also have a Windows environment on your Mac that supports genuine Windows based software. E.g. the 3rd party product 'Parallels' for the Mac is known to support Pedigree Assistant. 'Parallels' can be obtained from most Apple stores. If you are looking for a native pedigree program for the Mac you should consider our PedPro product.