"Tar" can refer to several different things depending on the context: 1. **Material**: Tar is a thick, black, viscous liquid derived from the destructive distillation of organic materials, such as wood or coal. It has been used historically in roofing, paving, and as a sealant because of its waterproofing and adhesive properties. 2. **Software Tool**: In computing, `tar` is a widely used archive file format and command-line utility in Unix and Linux systems.
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