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  2. Barrier (computer science) - Wikipedia

    en.wikipedia.org/wiki/Barrier_(computer_science)

    thread_barrier_number: Total number of threads expected to enter the thread barrier so that it can be lifted; lock: A POSIX thread mutex lock; Based on the definition of barrier, we need to implement a function like thread_barrier_wait() in this program which will "monitor" the total number of thread in the program in order to life the barrier.

  3. Sound barrier - Wikipedia

    en.wikipedia.org/wiki/Sound_barrier

    The sound barrier or sonic barrier is the large increase in aerodynamic drag and other undesirable effects experienced by an aircraft or other object when it approaches the speed of sound. When aircraft first approached the speed of sound, these effects were seen as constituting a barrier, making faster speeds very difficult or impossible.

  4. Mach number - Wikipedia

    en.wikipedia.org/wiki/Mach_number

    By definition, at Mach 1, the local flow velocity u is equal to the speed of sound. At Mach 0.65, u is 65% of the speed of sound (subsonic), and, at Mach 1.35, u is 35% faster than the speed of sound (supersonic). An F/A-18 Hornet creating a vapor cone at transonic speed just before reaching the speed of sound. The local speed of sound, and ...

  5. Glossary of computer science - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_computer_science

    Also simply application or app. Computer software designed to perform a group of coordinated functions, tasks, or activities for the benefit of the user. Common examples of applications include word processors, spreadsheets, accounting applications, web browsers, media players, aeronautical flight simulators, console games, and photo editors. This contrasts with system software, which is ...

  6. Supersonic speed - Wikipedia

    en.wikipedia.org/wiki/Supersonic_speed

    The sound source is traveling at 1.4 times the speed of sound, c (Mach 1.4). Because the source is moving faster than the sound waves it creates, it actually leads the advancing wavefront. The sound source will pass by a stationary observer before the observer actually hears the sound it creates.

  7. Termination analysis - Wikipedia

    en.wikipedia.org/wiki/Termination_analysis

    However, it was found later that describing a program via a recursively defined function with pattern matching is a more natural way of proving than using induction principles directly. Unfortunately, allowing non-terminating definitions leads to logical inconsistency in type theories [ citation needed ] , which is why Agda and Coq have ...

  8. Separation of concerns - Wikipedia

    en.wikipedia.org/wiki/Separation_of_concerns

    In computer science, separation of concerns (sometimes abbreviated as SoC) is a design principle for separating a computer program into distinct sections. Each section addresses a separate concern, a set of information that affects the code of a computer program.

  9. Semantics (computer science) - Wikipedia

    en.wikipedia.org/wiki/Semantics_(computer_science)

    Semantics describes the processes a computer follows when executing a program in that specific language. This can be done by describing the relationship between the input and output of a program, or giving an explanation of how the program will be executed on a certain platform , thereby creating a model of computation .