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  2. Analog computer - Wikipedia

    en.wikipedia.org/wiki/Analog_computer

    TR-10 desktop analog computer of the late 1960s and early 1970s. An analog computer or analogue computer is a type of computer that uses the continuous variation aspect of physical phenomena such as electrical, mechanical, or hydraulic quantities ( analog signals) to model the problem being solved.

  3. Prostaglandin analogue - Wikipedia

    en.wikipedia.org/wiki/Prostaglandin_analogue

    Prostaglandin analogues such as misoprostol are used in treatment of duodenal and gastric ulcers. [2] Misoprostol and other prostaglandin analogues protect the lining of the gastrointestinal tract from harmful stomach acid and are especially indicated for the elderly on continuous doses of NSAIDs . In the field of ophthalmology, drugs of this ...

  4. Analogue electronics - Wikipedia

    en.wikipedia.org/wiki/Analogue_electronics

    Analogue electronics ( American English: analog electronics) are electronic systems with a continuously variable signal, in contrast to digital electronics where signals usually take only two levels. The term analogue describes the proportional relationship between a signal and a voltage or current that represents the signal.

  5. Data acquisition - Wikipedia

    en.wikipedia.org/wiki/Data_acquisition

    Data acquisition. Data acquisition is the process of sampling signals that measure real-world physical conditions and converting the resulting samples into digital numeric values that can be manipulated by a computer. Data acquisition systems, abbreviated by the acronyms DAS, DAQ, or DAU, typically convert analog waveforms into digital values ...

  6. Analog signal - Wikipedia

    en.wikipedia.org/wiki/Analog_signal

    An analog signal is subject to electronic noise and distortion introduced by communication channels, recording and signal processing operations, which can progressively degrade the signal-to-noise ratio (SNR). As the signal is transmitted, copied, or processed, the unavoidable noise introduced in the signal path will accumulate as a generation ...

  7. Analogy - Wikipedia

    en.wikipedia.org/wiki/Analogy

    Analogy is a comparison or correspondence between two things (or two groups of things) because of a third element that they are considered to share.. In logic, it is an inference or an argument from one particular to another particular, as opposed to deduction, induction, and abduction.

  8. Digital audio - Wikipedia

    en.wikipedia.org/wiki/Digital_audio

    Digital audio is a representation of sound recorded in, or converted into, digital form. In digital audio, the sound wave of the audio signal is typically encoded as numerical samples in a continuous sequence. For example, in CD audio, samples are taken 44,100 times per second, each with 16-bit sample depth. Digital audio is also the name for ...

  9. Preamplifier - Wikipedia

    en.wikipedia.org/wiki/Preamplifier

    A preamplifier, also known as a preamp, is an electronic amplifier that converts a weak electrical signal into an output signal strong enough to be noise-tolerant and strong enough for further processing, or for sending to a power amplifier and a loudspeaker. [1] Without this, the final signal would be noisy or distorted.