What Is Unix & Linux in a Computer?
Unix and Linux are operating systems that run on most brands of computers. Linux is a free and open-source version similar to its ancestor, Unix.
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Differences
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The two are similar enough that they generally run the same programs; however, there are differences. Linux consists solely of the central operating system code (the kernel) and a variety of other free programs, and Unix is far more standardized.
Open Source
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Linux and some versions of Unix are open-source operating systems. This makes it legal to use, modify and share the operating systems with others without infringing copyright laws.
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Executable and Linkable Format
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All modern versions of Unix and Linux use the Executable and Linkable Format (ELF) for their executable files.
Package Managers
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One of the features of Unix and Linux compared to Windows and Mac computers is the use of "package managers." These programs provide you with a single interface for quickly searching, downloading and installing free, open-source software.
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