Also jumping aboard the bandwaggon is Apple Computer Inc, which said it plans to design and market computers and peripherals that will automatically shut down power or go into a low-power idle state when not actually processing data: the plan is part of Apple’s participation in a new Environmental Protection Agency programme to promote the development of personal computers that use less energy; Compaq Computer Corp, Digital Equipment Corp, Hewlett-Packard Co, IBM Corp, NCR Corp, Smith Corona Corp and Zenith Data Systems are also participating in the programme; the overall goal of the effort is to save $1,000m a year in power costs, said to be enough electricity to supply the states of Vermont and New Hampshire.