Yes.
Yes. Windows Vista fully supports quad-core processors.
32-bit processors
Which group of Intel processors uses a 32-bit word size and a 64 bit word size?
The Ubuntu/Kubuntu kernel is configured to support 8 processors / cores in 32-bit and 64 processors / cores in 64-bit.
32 bit
No. Windows 95 requires a 32-bit processor (a 386 or higher). 286 and under processors won't work.
Actually, they both make what are known as x86-64 processors, which are processors that can run both 32-bit and 64-bit programs. Check the specifications of the processor for something like "64-bit" or "64-bit Ready" to make sure you can run both x86 (32-bit) or x64 (64-bit) programs!
x86 and x86-64 (x64) are not mutually exclusive. x86-64 is a superset of x86, with 64-bit instructions. Many people still run 32-bit (x86) applications and operating systems on 64-bit processors. The reverse is not possible, though; you can't run a 64-bit system on a processor that only supports 32-bit.
The year of 1972.
The 64-bit version of Windows Vista is designed to take full advantage of 64-bit processors, and can address more than 4 GB of RAM. 32-bit applications can still be run on it; however you will need to make sure that there are 64-bit drivers for your hardware.
All Intel Core 2 processors are capable of running in both 32-bit and 64-bit mode.
32 bit applications will work on 64-bit but they will not run as efficient as 64-bit application. the reason for this is the 64-bit uses the memory better than a 32-bit. this is why a 32-bit can only use up to 3 gigs of ram and a 64-bit can use 16 gigs +