Different systems that can participate in grid computing as platform are:
Windows 3.1, 95/98, NT, 2000 XP , DOS, OS/2, , supported by Intel ( x86);
Mac OS A/UX (Unix) supported by Motorola 680 x0;
Mac OS , AIX ( Unix), OS X ( Unix) supported by Power PC;
HP / UX (Unix) supported by HP 9000 ( PA - RISC);
Digital Unix open VMS, Windows NT spported by Compaq Alpha;
VMS Ultrix ( Unix) supported by DEC VAX;
Solaris ( Unix) supported by SPARC station;
AIX ( Unix) supported by IBM RS / 6000;
IRIS ( Unix) supported by Silicon Graphics workstation.