The power state of each unit was recorded as on, low, off, or unplugged (exception: we did not record units that were unplugged if it appeared they were never used). Although some office equipment, particularly copiers, may have features that enable them to turn off automatically or enter low power manually (by user action), we assume that the vast majority of units found off were turned off manually (., by a user) and that units found in low power entered that state automatically (., without user action). If a monitor/computer pair were both on, we recorded the.
