32-bit and 64-bit CPU
If you are CCTV technicians you
need to know the two main categories of processors are 32-bit and 64-bit. The
type of processor a computer has not only affects it's overall performance, but
it can also dictate what type of software it uses.
32-bit processor
The 32-bit processor
was the primary processor used in all computers until the early 1990s. Intel Pentium
processors and early AMD processors were 32-bit processors. The Operating
System and software on a computer with a 32-bit processor is also 32-bit based,
in that they work with data units that are 32 bits wide. Windows 95, 98, and XP
are all 32-bit operating systems that were common on computers with 32-bit
processors.
64-bit processor
The 64-bit computer has
been around 1961 when IBM created the IBM 7030 Stretch supercomputer. However,
it was not put into use in home computers until the early 2000s. Microsoft
released a 64-bit version of Windows XP to be used on computers with a 64-bit
processor. Windows Vista, Windows 7, and Windows 8 also come in 64-bit
versions. Other software has been developed that is designed to run on a 64-bit
computer, which are 64-bit based as well, in that they work with data units
that are 64 bits wide.
Differences
The main difference
between 32-bit processors and 64-bit processors is the speed they operate.
64-bit processors can come in dual core, quad core, and six core versions for
home computing (with eight core versions coming soon). Multiple cores allow for
increase processing power and faster computer operation. Software programs that
require many calculations to function operate faster on the multi-core 64-bit
processors, for the most part. It is important to note that 64-bit computers
can still use 32-bit based software programs, even when the Windows operating
system is a 64-bit version.
Another big difference
between 32-bit processors and 64-bit processors is the maximum amount of memory
(RAM) that is supported. 32-bit computers support a maximum of 3-4GB of memory,
whereas a 64-bit computer can support memory amounts over 4 GB. This is
important for software programs that are used for graphical design, engineering
design or video editing, where many calculations are performed to render
images, drawings, and video footage.
One thing to note is
that 3D graphic programs and games do not benefit much, if at all, from
switching to a 64-bit computer, unless the program is a 64-bit program. A
32-bit processor is adequate for any program written for a 32-bit processor. In
the case of computer games, you'll get a lot more performance by upgrading the video
card instead of getting a 64-bit processor.
In the end, 64-bit
processors are becoming more and more commonplace in home computers. Most
manufacturers build computers with 64-bit processors due to cheaper prices and
because more users are now using 64-bit operating systems and programs.
Computer parts retailers are offering fewer and fewer 32-bit processors and
soon may not offer any at all.
