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  2. Concurrency control - Wikipedia

    en.wikipedia.org/wiki/Concurrency_control

    The general area of concurrency control provides rules, methods, design methodologies, and theories to maintain the consistency of components operating concurrently while interacting, and thus the consistency and correctness of the whole system. Introducing concurrency control into a system means applying operation constraints which typically ...

  3. Discrete cosine transform - Wikipedia

    en.wikipedia.org/wiki/Discrete_cosine_transform

    There are eight standard DCT variants, of which four are common. The most common variant of discrete cosine transform is the type-II DCT, which is often called simply the DCT. This was the original DCT as first proposed by Ahmed. Its inverse, the type-III DCT, is correspondingly often called simply the inverse DCT or the IDCT.

  4. Digital control - Wikipedia

    en.wikipedia.org/wiki/Digital_control

    Digital control theory is the technique to design strategies in discrete time, (and/or) quantized amplitude (and/or) in (binary) coded form to be implemented in computer systems (microcontrollers, microprocessors) that will control the analog (continuous in time and amplitude) dynamics of analog systems.

  5. Redundancy (engineering) - Wikipedia

    en.wikipedia.org/wiki/Redundancy_(engineering)

    The voting method may involve additional complexity if the two things take different amounts of time. Dissimilar redundancy is often used with software, because identical software contains identical flaws. The chance of failure is reduced by using at least two different types of each of the following processors, operating systems, software ...

  6. Modified discrete cosine transform - Wikipedia

    en.wikipedia.org/wiki/Modified_discrete_cosine...

    The modified discrete cosine transform (MDCT) is a transform based on the type-IV discrete cosine transform (DCT-IV), with the additional property of being lapped: it is designed to be performed on consecutive blocks of a larger dataset, where subsequent blocks are overlapped so that the last half of one block coincides with the first half of the next block.

  7. Cooperative multitasking - Wikipedia

    en.wikipedia.org/wiki/Cooperative_multitasking

    Cooperative multitasking, also known as non-preemptive multitasking, is a style of computer multitasking in which the operating system never initiates a context switch from a running process to another process. Instead, in order to run multiple applications concurrently, processes voluntarily yield control periodically or when idle or logically ...

  8. Man in critical condition after being pushed onto New York ...

    www.aol.com/man-critical-condition-being-pushed...

    A man was left in critical but stable condition after he was pushed onto the subway tracks at the 18th Street station in Manhattan's Chelsea neighborhood. The 45 -year-old victim was pushed onto ...

  9. Flow control (data) - Wikipedia

    en.wikipedia.org/wiki/Flow_control_(data)

    Closed-loop flow control is used by ABR (see traffic contract and congestion control). [1] Transmit flow control described above is a form of closed-loop flow control. This system incorporates all the basic control elements, such as, the sensor, transmitter, controller and the regulator. The sensor is used to capture a process variable.