Initialize system page

Information about the system is collected and placed in an in-memory data structure called the system page. This includes information such as the processor type, bus type, and the location and size of available system RAM.

The kernel as well as applications can access this information as a read-only data structure. The hardware/system-specific code to interrogate the system for this information is confined to the startup program. This code doesn't occupy any system RAM after it has run.