Obsolescence

practice of planning or designing a product with an artificially limited useful life

Obsolescence is the process of becoming antiquated, out of date, old-fashioned, no longer in general use, no longer useful, or superseded by innovation, or the condition of being in such a state. When used in a biological sense, it means imperfect or rudimentary when compared with the corresponding part of other organisms. The international standard IEC 62402:2019 Obsolescence Management defines obsolescence as the "transition from available to unavailable from the manufacturer in accordance with the original specification".

totally non-functional electronic device

approximate year when a model was produced, different from calendar year of actual production

Japanese Urban Legend

situation where a digital resource is no longer readable because of its archaic format