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C

C

Programming language in which much of the Linux kernel is written, as were later versions of UNIX before it. C was created by some of the same people who created UNIX, and its development mirrors that of UNIX.

C++

Object-oriented programming language; originally designed to be an enhancement to C, but now seen as a popular alternative.

C#

Modern programming language, which uses similar syntax to C, created by Microsoft and re-created on Linux via the Mono project.

character device

How Linux refers to a device that sends/receives data asynchronously. For various technical reasons, this typically refers to the terminal display. See also block device.

checksum

Mathematical process that can be applied to a file or other data to create a unique number relative to the contents of that file. If the file is modified, the checksum will change, usually indicating that the file in question has failed to download correctly or has been modified in some way. The most common type of checksum program used under Linux and UNIX is md5sum.


  

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