Difference between sun sparc 32-bit and sun sparc 64-bit

Hi ,

could you please clarify me the difference between sun sparc 32-bit and sun sparc 64-bit?

means on which processors these are supporting (pentium processors, sun sparc processors)

Regards,
Rajesh

SPARC is a processor architecture. There are 32 bit (SPARC V8) and 64 bit versions (SPARC V9). V9 has been introduced 1995 with the UltraSPARC I, a processor implementing that architecture. Today V8 is only relevant in embedded devices.

x86 (also called i386) is another processor architecture. The Pentium is one example for an implementation of that architecture.

(different architectures have different instructions, ways to communicate with the memory, and so on)