64-bit Last modified: Thursday, July 07, 2005
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: microprocessor: indicates the width of the registers. graphics device, such as a scanner or digital camera operating system: refers primarily to the number of bits used to represent memory addresses. See also 32-bit and "What Is 64-bit Computing?" in Webopedia's Did You Know... section.
•E-mail this definition to a colleague• For internet.com pages about 64-bit . Also check out the following links! 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.	Buses Microprocessors Operating Systems bus computer data memory microprocesser OS Give Us Your Feedback Shopping 64 bit Products Compare Products,Prices and Stores Shop by Category: Tools and Accessories 117 Store Offers Graphics Cards 241 Model Matches Software 103 Store Offers Processors 378 Model Matches Musical Instruments 0 Store Offers