Abstract: A system includes a plurality of electronic displays, each defined by respective characteristics. Each display can be interchangeably used, one at a time, with any of a plurality of different electronic entities. A display and an electronic entity define a particular integrated device when operably mated together. Monitors, all-in-one computers, point-of-sale equipment and other apparatus and devices can be defined and used in accordance with the interchangeable displays of the present teachings.

Abstract: According to one aspect of the present invention, there is provided a method for providing diagnostic indications representing detected failure conditions in a computer system, comprising: generating at least one indicator light waveform to present a predetermined quantity of one or more sequential illuminations of at least one indicator light; and, generating, at approximately the same time and in synchronicity with the at least one indicator light waveform, a corresponding at least one speaker audio waveform presenting, via a speaker, a same quantity of one or more sequential audible enunciations.