A PC is either 32-bit or 64-bit. The difference between the two is that a 64-bit computer can handle twice as much information at one time as a 32-bit. CPU stands for central processing unit, which is the area of the computer that executes commands. Computers that are 64-bit also have the capability to run programs that require more memory to operate. This article discusses how to determine if your computer running Windows Vista or Windows 7 is 32-bit or 64-bit.
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Go to your computer's "Start" menu by clicking on it. Point to "Control Panel" and click. The control panel is where you can view and edit all the settings for the devices and programs on your computer.
Find "System" within the control panel and click it. The system section shows the specifications of your computer, including access to your computer's device manager.
Go to "System type" and look directly across. It will say either 32-bit Operating System or 64-bit Operating System.