Is computer a need or a want?

For the purposes of this question, its hard to define what nesessity means. In every society since the beginning of time there are collectively accepted norms or standards that must be adopted by most people in order to 'fit in'. For instance, if you were deathly afraid of horses 200 years ago, you would likely have a hard time fitting into society. In modern times,a person that does not use a computer will be left out of many situations that others would consider to be necessary.