Software development. A software developer designs and creates tech which can be used for multiple purposes, both creative, practical and for entertainment purposes. A digital music manager would fall into the category of being some software in which a user could develop a method to manage music.
The United States does not have an official federal e-waste regulation system, yet certain states have implemented state regulatory systems. ... The EPA estimates that in 2009, the United States disposed of 2.37 million tons of e-waste, 25% of which was recycled domestically.