Glossary
Please refer to the chapter whose number is in parentheses after each definition to learn more about that topic.
3-2-1 rule A backup strategy that includes three copies of your data, on two types of media, with at least one offsite backup. (21)
3-D printer A printer that uses plastic, metal, or ceramic to create a three-dimensional object based on instructions from a 3-D modeling application. See also fused deposition modeling (FDM), stereolithography (SLS), laminated, and light polymer. (13)
5G See Fifth Generation (5G).
32-bit operating system An operating system that can run on a 32-bit or 64-bit CPU and can utilize up to ...
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