자세한건 도움말을 참고하세요. 책에서 발췌한겁니다.
API함수 GetSyetemIfo함수.
<원형> void GetSyetemInfo(LPSYSTEM_INFO lpSystemInfo);
--------------------------------------------------------
typedef struct _SYSTEM_INFO
{
    union{
        DWORD dwOenId;
        struct{
                WORD wProcessorArchitecture;
                WORD wReserved;             
            {;               


        }       
}
DWORD dwPageSize;
LPVOID lpMinimumApplicationAddress;
LPVOID lpMaximumApplicationAddress;
DWORD dwActiveProcessorMask;
DWORD dwNumberOfProcessors;
DWORD dwProcessorType;;
DWORD dwAllocationGranularity;
WORD wProcessorLevel;
WORD wProcessorRevision;
}
SYSTEM_INFO;

오타가 좀 났네요.. -.-;