A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _
| AVI | AVI (Audio Video Interleaved) is a computer video/graphics format. AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback |
| AWG | American Wire Gauge is a standardised wire gauge system used to measure wire or cable thickness. Speaker cable is often measured this way. The gauge number gets smaller as the thickness of the wire increases, eg very fine wire (for example 30 gauge) is much smaller than 4 gauge wire. The cross-sectional area of each gauge is an important factor for determining its current-carrying capacity |
| Analog | An Analog or analogue signal is any continuous signal for which the time varying feature (variable) of the signal is a representation of some other time varying quantity, i.e., analogous to another time varying signal. It differs from a digital signal in terms of small fluctuations in the signal which are meaningful. Analog is usually thought of in an electrical context; however, mechanical, pneumatic, hydraulic, and other systems may also convey analog signals. |
| Aliasing | In signal processing and related disciplines, aliasing refers to an effect that causes different signals to become indistinguishable (or aliases of one another) when sampled. It also refers to the distortion or artifact that results when the signal reconstructed from samples is different than the original continuous signal. |
| Antenna | An antenna (or aerial) is a transducer designed to transmit or receive electromagnetic waves. In other words, antennas convert electromagnetic waves into electrical currents and vice versa. They are used with waves in the radio part of the electromagnetic spectrum, that is, radio waves, and are a necessary part of all radio equipment. Antennas are used in systems such as radio and television broadcasting, point-to-point radio communication, wireless LAN, cell phones, radar, and spacecraft communication. Antennas are most commonly employed in air or outer space, but can also be operated under water or even through soil and rock at certain frequencies for short distances. |
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