er, mainframe, and supercomputer d. Notebook, server, and nettop The computer hardware industry and users are implementing green computing designs and products. 6. The class of computer used to support workgroups from a small department of two or three workers to large organizations with tens of thousands of employees and millions of customers is the 7. A data center designed to have an expected annual downtime of less than 30 minutes and able to handle a power outage of up to four days is data center. a tier O 00 is not a specific goal of green computing, a. Reducing the use of hazardous material b. Lowering power-related costs