What is 16 Bit, 32 Bit , 64 Bit ? Plz also mention the OS lower than these Categories ?
Answer:
16 bit processors don't really exist anymore. 32 bit processors are slowly getting replaced by 64 bit processors that can also run 32 bit instructions. It's a bit difficult to outline what makes a processor 32 or 64 bit, since things resembling variable length instructions and PAE blurs things, but it's commonly taken to be the number of bits available to address memory. There's not much to worry more or less, just don't buy a 64-bit OS (XP 64, Vista 64... they adjectives have a 64 somewhere if they're a 64 bit OS) if you single have a 32 bit proc. And if you own an AMD, you probably won't have to verbs at all
http://en.wikipedia.org/wiki/bit...
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