Abstract: Methods and apparatus for the protection and control of computer programs wherein a valid program is modified to provide a furnished program and a corresponding restoration program, one or both of these are modified in accordance with confirmation data, and the furnished program, confirmation data, and restoration program data are supplied to an equipped computer installation in the form of a furnished program medium, a confirmation unit, and a restoration unit, via separate commercial channels.

Abstract: A machine for dispensing a freshly mixed cup of juice or other beverage made from concentrate mixed with water immediately prior to the dispensing, comprising a generally U-shaped water reservoir, the water in which is kept at an essentially constant level by means of a proximity switch interacting with a solenoid valve located in the principal water supply. Coils of a refrigerant unit are disposed in the reservoir to chill the water to a temperature above the freezing point, and one or more concentrate tanks are located between the arms of the U-shaped reservoir, so that the concentrate will be chilled to, and maintained at, a desired temperature. Modular pump units are utilized for pumping concentrate into a mixing chamber, with a power driven impeller utilized in the mixing chamber to effect a mixing of concentrate with a suitable quantity of water from the reservoir.