That allows mono FM receivers to receive and decode the sum signal while ignoring the difference signal, which is necessary only for separating the audio channels. Forward compatibility for mono receivers with stereo signals was achieved by sending the sum of both left and right audio channels in one signal and the difference in another signal. With the introduction of two-channel stereo FM radio, many listeners had only mono FM receivers. FM radio was initially mono, with only one audio channel represented by one signal. Ī simple example of both backward and forward compatibility is the introduction of FM radio in stereo.
#Ps3 serial number backwards compatible software#
Ī related term from programming jargon is hysterical reasons or hysterical raisins (near-homophones for "historical reasons"), as the purpose of some software features may be solely to support older hardware or software versions. A design that is forward-compatible usually has a roadmap for compatibility with future standards and products. Ī complementary concept is forward compatibility. Modifying a system in a way that does not allow backward compatibility is sometimes called " breaking" backward compatibility.
All Nintendo handhelds, besides the Nintendo Switch, Nintendo DSi, and Game Boy Micro, following the Game Boy have at least one model that is backward compatible with its predecessor.īackward compatibility (sometimes known as backwards compatibility) is a property of an operating system, product, or technology that allows for interoperability with an older legacy system, or with input designed for such a system, especially in telecommunications and computing. The GameCube's successor, the Wii, employs backward compatibility with the ability to play games designed for its predecessor and support its legacy controllers.
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