A hierarchical diagram showing layers from physics to application software.The diagram illustrates a hierarchy of computing concepts. At the top is 'Application Software' with a text box showing 'greater than "hello world!"'. Below it is 'Operating Systems' with a laptop icon. 'Architecture' follows, represented by a series of blocks. 'Micro-architecture' is next, depicted with arrows between two blocks. 'Logic' is shown with a logic gate symbol containing a plus sign. 'Digital Circuits' is represented by a digital gate symbol. 'Analog Circuits' features an operational amplifier symbol. 'Devices' is illustrated with a transistor symbol. At the bottom is 'Physics', represented by an atomic modelExtensions: C (Compressed)