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This is a list of obsolete technology, superseded by newer technologies. Obsolescence is defined as the "transition from available to unavailable from the manufacturer in accordance with the original specification." [1] Newer technologies can mostly be considered as disruptive innovation. Many older technologies co-exist with newer alternatives ...
Technology that is outdated (such as the 8-track) or no longer used at all (such as the telegraph).Not all old technology belongs here - for example, while vinyl records were replaced by audio cassettes and CDs in the 1980s, they are making a comeback as a physical format as non-physical formats have made the CD and cassette obsolete, while vinyl is slowly becoming more common again (see vinyl ...
For example, there are still a few lamplighters retained for ceremonial or tourist purposes, but in the main the occupation is now obsolete. Similarly, there are still some manual switchboard operators and elevator operators which are required for historic equipment or security reasons, but these are now considered to be obsolete occupations.
Although the VCR and VHS tape were largely rendered obsolete by the turn of the millennium, the once-revolutionary tech limped into the digital age, until the Washington Post officially wrote its ...
Historical examples of new technologies superseding old ones include bronze replacing flint in hand-tools, DVDs replacing videocassettes, and the telephone replacing the telegraph. On a smaller scale, a particular product may become obsolete when a newer version replaces it. Many products in the computer industry become obsolete in this manner.
For example, small, brittle plastic gears in toys are extremely prone to damage if the toy is played with roughly, which can easily destroy key functions of the toy and force the purchase of a replacement. The short life expectancy of smartphones and other handheld electronics is a result of constant usage, fragile batteries, and the ability to ...
The Tesla CEO likened educators to vaudeville entertainers in small-town America. Before Hollywood professionalized the trade, amateur thespians were the best a backwater could hope for.
For example, Newtonian classical mechanics is accurate enough for practical calculations at everyday distances and velocities, and it is still taught in schools. The more complicated relativistic mechanics must be used for long distances and velocities nearing the speed of light , and quantum mechanics for very small distances and objects.