Infographic showing the layered hierarchy of computer systems from application software down to physics.This infographic presents a top-to-bottom stack that explains how higher-level software depends on lower-level hardware and physical principles. The sections, in reading order from top to bottom, are: Application Software, Operating Systems, Architecture, Microarchitecture, Logic, Digital Circuits, Analog Circuits, Devices and Physics. Application Software includes a small code-style callout that reads greater than "hello world!". Operating Systems is paired with a laptop icon to represent the computer environment that runs applications. Architecture is illustrated with a block-like layout suggesting system organization. Microarchitecture is shown with two vertical blocks connected by two-way arrows, indicating internal data movement between components. Logic is represented by a rectangular logic block containing a plus sign. Digital Circuits is paired with a logic gate icon. Analog Circuits is paired with an operational amplifier symbol that includes plus and minus inputs. Devices is paired with a transistor-like schematic symbol. Physics is paired with an atom icon, indicating the physical foundation underlying electronic devices.Linux