"Bad command or file name" is a common error message in MS-DOS and some other operating systems. It is occasionally used as an example of a computer message that is perfectly accurate yet confusing to the average user. COMMAND.COM produced the message "Bad command or file name" when the first word of a command could not be interpreted. For MS-DOS, the first word of a command was the name of an internal command, executable file or batch file, so the error message provided an accurate description of the problem but easily confused novices. Though the source of the error was often a mistyped command...

DOSBox is an emulator program which emulates an IBM PC compatible computer running a DOS operating system. Many IBM PC compatible graphics and sound cards are also emulated. This means that original DOS programs (including PC games) are provided with an environment in which they can run correctly, even though the modern computers have dropped support for that old environment. DOSBox is free software written primarily in C++ and distributed under the GNU General Public License. DOSBox has been downloaded over 34 million times since its release on SourceForge in 2002. DOSBox can run old DOS software...

The Brain Fuck Scheduler (BFS) is a process scheduler designed for the Linux kernel in August 2009 as an alternative to the Completely Fair Scheduler and the O(1) scheduler. BFS was created by veteran kernel programmer Con Kolivas. The objective of BFS, compared to other schedulers, is to provide a scheduler with a simpler algorithm, that does not require adjustment of heuristics or tuning parameters to tailor performance to a specific type of computation workload. Kolivas asserted that these tunable parameters were difficult for the average user to understand, especially in terms of interactions...

In the field of psychology, the Dunning–Kruger effect is a cognitive bias wherein people of low ability suffer from illusory superiority, mistakenly assessing their cognitive ability as greater than it is. The cognitive bias of illusory superiority derives from the metacognitive inability of low-ability persons to recognize their own ineptitude; without the self-awareness of metacognition, low-ability people cannot objectively evaluate their actual competence or incompetence. Conversely, highly competent individuals may erroneously assume that tasks easy for them to perform are also easy for other...