Abstract: The systems, devices, articles, and methods described herein generally relate to analog computers, for example quantum processors comprising qubits, couplers, and, or cavities. Analog computers, for example quantum processor based computers, are the subject of various sources of error which can hinder operation, potentially reducing computational accuracy and speed. Sources of error can be broadly characterized, for example as i) a background susceptibility do to inherently characteristics of the circuitry design, ii) as an h/J ratio imbalance, iii) bit flip errors, iv) fidelity, and v) Anderson localization, and various combinations of the aforesaid.

Abstract: Processing logic may obtain health data from each of a plurality of clients. The health data includes attributes of a respective one of the plurality of clients, a health status of the respective one of the plurality of clients, and a software version of the respective one of the plurality of clients. Processing logic may determine a conditional risk that is associated with at least one of the attributes and the software version, in view of the health data, and store the conditional risk in memory. Processing logic can make the conditional risk, which includes the attributes and the software version, available to a client.

Abstract: Processing logic may obtain a version of software that is running on a client. Processing logic may obtain a second version of the software which is an update to the version of software that is running on the client. Processing logic may send the second version to the client with one or more conditions that are associated with the second version, for the client to determine whether or not to update to the second version.

Abstract: An instrument with a previously-determined quantity of tones, which interpret a desired musical scale or chords. Importantly, the tones are arranged in a fifth dimension frequency, (i.e. D-A-E-B-F#, etc.) providing a “cycle of fifths” pattern for the convenience of the user. In the preferred mode, the device is a steel drum with unique tones in a 360 degree circumference. Engraved steadfast notes are arranged in a circular or clock-like pattern, with a visual pattern guide on the surface thereof, allowing the user to strike the tones to achieve the fifth dimension frequency. Therefore, the invention uniquely allows for playing of the instrument with considerably less challenge to the player's mental comprehension.

Abstract: An instrument with a previously-determined quantity of tones, which interpret a desired musical scale or chords. Importantly, the tones are arranged in a fifth dimension frequency, (i.e. D-A-E-B-F#, etc.) providing a “cycle of fifths” pattern for the convenience of the user. In the preferred mode, the device is a steel drum with unique tones in a 360 degree circumference. Engraved steadfast notes are arranged in a circular or clock-like pattern, with a visual pattern guide on the surface thereof, allowing the user to strike the tones to achieve the fifth dimension frequency. Therefore, the invention uniquely allows for playing of the instrument with considerably less challenge to the player's mental comprehension.