Abstract: A method, system, and product for performance analysis of quantum programs. A quantum program comprises plurality of code artifacts and is compilable into a quantum circuit. A representation of the quantum circuit that implements the quantum program is obtained. The quantum circuit manipulates a plurality of qubits over a plurality of cycles using a plurality of quantum gates. The representation of the quantum circuit includes circuit components. A performance measurement of a code artifact of the quantum program is automatically computed based on one or more circuit components that are mapped to the code artifact by a component to code mapping. The component to code mapping maps circuit components of the representation to the quantum circuit to respective code artifacts of the quantum program.

Abstract: A system, method and devices for text input system for disambiguating keystrokes entered by a user, comprising a plurality of data keys, said plurality of data keys configured to facilitate the smallest number of required language letters, and to facilitate between two to six characters per each data key, by a further smaller number of keys, including touch-based key strokes facilitating by a differential way both precise single character selection and the selection of all letters facilitated by this key, including integrated word prediction function; each of said plurality of data keys configured to facilitate at least one but no more than three characters on each side of the symmetry axis of the key, such symmetry axis can be vertical or horizontal; and are adapted for enabling entry of an at least one word by a succession of touch-based keystrokes and a word prediction function on said keyboard.

Abstract: A system, method and devices for text input system for disambiguating keystrokes entered by a user, comprising a plurality of data keys, said plurality of data keys configured to facilitate the smallest number of required language letters, and to facilitate between two to six characters per each data key, by a further smaller number of keys, including touch-based key strokes facilitating by a differential way both precise single character selection and the selection of all letters facilitated by this key, including integrated word prediction function; each of said plurality of data keys configured to facilitate at least one but no more than three characters on each side of the symmetry axis of the key, such symmetry axis can be vertical or horizontal; and are adapted for enabling entry of an at least one word by a succession of touch-based keystrokes and a word prediction function on said keyboard.

Abstract: A character input system for a limited keyboard, in which a number of input keys in the keyboard is smaller than a number of characters in an input alphabet, the system comprising: a memory comprising a plurality of different mappings of said characters onto combinations of said keys; and a selector for allowing a user to select one of said mappings for character input. The different mappings are optimized for different users and different purposes, so that the user may select a mapping for simplicity of use, or one optimized for touch-typing, or for minimal key pressing or for minimal ambiguity or for other factors and combinations thereof.