physical analog

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• Analog sound vs. digital sound — Analog sound versus digital sound compares the two ways in which sound is recorded and stored. Actual sound waves consist of continuous variations in air pressure. Representations of these signals can be recorded in either digital or analog… …   Wikipedia

• Analog device — is an apparatus that measures continuous information. The measured analog signal has an infinite number of possible values. The only limitation on resolution is the accuracy of the measuring device. Such apparatus operates with variables which… …   Wikipedia

• Analog signal processing — is any signal processing conducted on analog signals by analog means. Analog indicates something that is mathematically represented as a set of continuous values. This differs from digital which uses a series of discrete quantities to represent… …   Wikipedia

• Physical computing — Physical computing, in the broadest sense, means building interactive physical systems by the use of software and hardware that can sense and respond to the analog world. While this definition is broad enough to encompass things such as smart… …   Wikipedia

• Analog recording — Analog (or analogue) recording (Greek, ana is according to and logos relationship ) is a technique used to store signals of audio or video information for later playback.Analog recording methods store audio signals as a continual wave in or on… …   Wikipedia

• Analog models of gravity — is a direction of research in physics, where various phenomena of general relativity (e.g., black holes or cosmological geometries) are modeled by other physical systems, such as acoustics in a moving fluid, superfluid helium, or Bose Einstein… …   Wikipedia

• analog computer — ☆ analog computer n. a computer for processing data represented by a continuous physical variable, as electric current: cf. DIGITAL COMPUTER …   English World dictionary

• Analog computer — An analog computer (spelt analogue in British English) is a form of computer that uses continuous physical phenomena such as electrical, [Universiteit van Amsterdam Computer Museum, (2007)] mechanical, or hydraulic quantities to model the problem …   Wikipedia

• Analog-to-digital converter — An analog to digital converter (abbreviated ADC, A/D or A to D) is an electronic integrated circuit, which converts continuous signals to discrete digital numbers. The reverse operation is performed by a digital to analog converter… …   Wikipedia

• analog computer — a computer that represents data by measurable quantities, as voltages or, formerly, the rotation of gears, in order to solve a problem, rather than by expressing the data as numbers. Cf. digital computer. [1945 50, Amer.] * * * Computer in which… …   Universalium

• Analog hole — The analog hole is a fundamental and inevitable vulnerability in copy prevention schemes for noninteractive works in digital formats which can be exploited to duplicate copy protected works that are ultimately reproduced using analog means. Once… …   Wikipedia