|What's 64 bit computing ?
|32-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. The term when used in
conjunction with a microprocessor indicates the width of the
registers; a special high-speed storage area within the CPU. A
32-bit microprocessor can process data and memory addresses that
are represented by 32 bits.
|64-bit therefore refers to a processor
with registers that store 64-bit numbers. A generalization would
be to suggest that 64-bit architecture would double the amount of
data a CPU can process per clock cycle. Users would note a
performance increase because a 64-bit CPU can handle more memory
and larger files. One of the most attractive features of 64-bit
processors is the amount of memory the system can support. 64-bit
architecture will allow systems to address up to 1 terabyte
(1000GB) of memory. In today's 32-bit desktop systems, you can
have up to 4GB of RAM (provided your motherboard that can handle
that much RAM) which is split between the applications and the
operating system (OS).
|As more complex software and 3D games
become available however, we could actually see this become a
limitation. Benefits of 64-bit processors would be seen with more
demanding applications such as video encoding, scientific
research, searching massive databases; tasks where being able to
load massive amounts of data into the system's memory is required.