Knowing if your copy of Windows is 32-bit or 64-bit becomes very important when installing device drivers for your hardware and choosing between certain kinds of software.

Generally, those who continue to use the 32-bit operating system tend to be subject to some kind of legacy constraint. 32-bit drivers won't work in 64-bit Windows, so obscure but mission critical ...

There's a difference between 64-bit and 32-bit operating systems, and it involves your PC, too.

Some manufacturers bundle both 32-bit and 64-bit drivers within a single installation package, leading casual observers to sometimes misreport that a 32-bit driver worked under 64-bit Windows.

Nvidia notes that it will continue to offer security updates for its 32-bit drivers for another year, but all new features, enhancements, and new hardware support will require a 64-bit OS and drivers.

Finding out whether you're using the 32-bit or 64-bit version of Internet Explorer in Windows 8 is as simple as finding out which version of Windows you're using.

The 488.2V4 GPIB driver for controlling test instruments fully supports 32- and 64-bit Windows operating systems as well as 64-bit programs and includes a 64-bit DLL for executing 64-bit programs.