64-bit refers to the number of bits (the smallest unit of
information on a machine) that can be processed or transmitted in parallel, or
the number of bits used for single element in a data format. When the term is
used in conjunction with a microprocessor, it
indicates the width of the registers #&151; a special
high-speed storage area within the
CPU. A 64-bit microprocessor can process data and
memory addresses that are represented by 64 bits. The
term is often applied to the following:
What Is 64-bit Computing? When reading about PCs and servers, you'll often see the CPU described by the number of bits (e.g., 32-bit or 64-bit), here's a little info about what that means.
