Abstract: Presenting system and device conditions and purchasing options for components compatible with hardware devices of a computer system. In one aspect, an operating system determines the identity of a hardware device in communication with the operating system, communicates over a network to receive current purchasing information related to the hardware device, and displays components that can be selected for purchase and used with the hardware device. Another aspect provides a selectable user interface control for display in a graphical user interface that indicates a new operating condition of the computer system, different from a prior operating condition, by displaying a different appearance of the control. One embodiment has a new operating condition occurring when a component of a hardware device is within a predetermined threshold of requiring replacement, refilling, or supplementation.

Abstract: Online purchasing of components compatible with particular hardware devices of a computer system. In one aspect, the identity of a hardware device capable of communicating with computer systems is automatically determined. At least one component for the hardware device is displayed on a computer system based on the identity of the hardware device such that the user can select the at least one component for purchase, where the at least one component is compatible with and for use with the hardware device.