Original: Since about 1990 , the game port has usually been integrated with a PC I\/O or sound card , either ISA or PCI , or as an on-board feature of some motherboards ; before that , it was usually on a dedicated ISA card .
Simplified: Microsoft declared it would no longer include support for game ports in operating systems beginning with MS-Windows XP Professional x64 edition , reasoning that USB-based gaming equipment had become more common .