Computers are probably the best characterization for modern life. For the past twenty years, its popularity has grown tremendously. To meet the demands of competition and technology, the computer industries rapidly develop newer and faster machines to make the old ones obsolete. According to study, a new computer's life is only about eighteen months. With the society more focused on environmental protection, it becomes more important to discuss the material impact of computers.
Computers typically have heavy metal content like steel, aluminum, lead, etc [2]. For example, computer monitor is mostly comprised of leaded glass and plasti
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