What is the Meaning & Definition of obsolescence

Obsolescence is the quality of obsolete for an object, which will emerge from their malfunction not only because its usefulness has become insufficient or outdated by another object that somehow replaces it. During the 20th century the typewriter was a tool fundamental and popular at the time of writing, however, currently have become a product obsolete and even in some cases, an authentic old as a result of the creation of the computer. Today is virtually unimaginable for a person to acquire a machine to write to perform all the work of an office and if he commits it, no doubt, would be very outside "of the world".
Obsolescence may occur for various reasons, although the economic component is behind most of them, among them stand out: the impossibility of finding spare parts right, something that normally happens with automobiles and also with some appliances; Another cause is the development of new equipment, technologies and machines, which allow to produce best teams, with absolutely superior to its predecessors functions in a really short time. One of the most representative examples of this cause is given with computers, is impressive as we constantly find PCs, notebooks, mininotebooks, that they are overcoming each other in little time between his appearances.
Also, the emergence of new markets or technologies that replace others clearly can cause the obsolescence of something. For example, the appearance of the DVD made that consumers tipping unanimously to this format to the detriment of the VHS, culminating with his disappearance.
And finally obsolescence the manufacturers of the products can cause as a business strategy, so that here we can find three types of obsolescence: planned obsolescence (creates a product and at the same time the company studies the optimal time of life that he will have no need of repairs then re-created it) , perceived obsolescence (creates a product with a certain aspect and later sold the same product but with different appearance) and obsolescence of speculation (incomplete or less at very low cost products are marketed towards consolidation in the market and then will take the same improved product).