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In computer science, 64-bit computing refers to a microprocessor's data stream. It means an operating system can use more computer memory at one time. This makes a 64-bit system much faster than a 32-bit system. A 32-bit system can only use up to 3.56 gigabytes of random-access memory (called RAM or memory). A 64-bit system can use much more memory making it considerably faster. Using an analogy, a 64-bit system is like a 64 line highway. If each bit were a car, it means 64 of them can move at the same time.
- Jon Stokes, Inside the Machine: An Illustrated Introduction to Microprocessors and (San Francisco, CA: No Starch Press, 2007), p. 181
- Woody Leonhard. "32-Bit Versus 64-Bit Versions of Windows 8.1". John Wiley & Sons, Inc. http://www.dummies.com/computers/operating-systems/windows-8/32-bit-versus-64-bit-versions-of-windows-8-1/. Retrieved December 29, 2016.
- Gary B. Shelly; Misty E. Vermaat, Discovering Computers 2010: Living in a Digital World, Complete (Boston: Cengage Learning, 2010), p. 237