A programmable controller for use in controlling a wide variety of external data and production devices and having an extremely flexible stored program capability enabling the device to function as a small-scale computer adapted for use as either a systems controller or as a "stand alone" mini-computer.

A programmable keyboard having a plurality of information input elements constituted by small cathode-ray tubes connected to present a display of the type of information to which they relate.

A programmable printer is provided which is capable of printing alphanumeric internally pre-stored data or data information and alphanumeric externally supplied data or data information either separately or in combination with each other. The alphanumeric printout of the printer may be inverted in a manner to allow its visual reading in what would otherwise be an "upside-down" configuration. The programmable printer incorporates a microprocessor for the proper addressing, interpretation and mani...

A programmable terminal is disclosed in which a non-volatile memory in combination with decoding logic enables data collection and control of external devices. The memory can be programmed prior to assembly into the terminal or erased and programmed either on- or off-line. The terminal logs data in its entirety or only that data meeting programmed criteria. Specific examples of the use of the programmable terminal of the present invention are also disclosed.

A method and apparatus for automatic, programmed, in-circuit component testing and functional testing. A multi-mode measurement unit having an exciter circuit, computing circuit, and a converter circuit is provided for measuring electrical signals. The measurement unit is controlled by a program-commanded measurement unit controller. A plurality of device connection switches are provided for connecting, by a program-commanded switch controller, the computing circuit to selected nodes of a circui...

A programmable controller for use in controlling a wide variety of external data and production devices and having an extremely flexible stored program capability enabling the device to function as a small-scale computer adapted for use as either a systems controller or as a "stand alone" minicomputer.

A universal teaching machine which may be caused to function as a special purpose training system is disclosed. Simulation of a selected specialized lesson subject is accomplished by means of a set of randomly selectable pictures and a student display-reaction panel. The machine includes a stored program processor which operates under control of a pre-recorded program model commensurate with the student panel; the program model being loaded into the memory of the processor and cooperating with s...

A modular read-write and read-only memory unit capable of employing both direct and indirect decimal and symbolic addressing, a central processing unit capable of performing both serial binary and parallel binary-coded-decimal direct and indirect memory register arithmetic, and an input-output control unit capable of bidirectionally transferring information between the central processing unit and a number of input and output units are controlled by a microprocessor included in the central proces...

A method and apparatus is disclosed for measuring the operational use of a physical system. The apparatus includes an integrator having a reversible coulometer including a bored tube made of a transparent or translucent material with a pair of electrodes connected to each end thereof. A transparent electrolyte is positioned in the bore between two columns of an opaque electrolytically platable metal. A pair of light sensitive elements, spaced from one another, are positioned on one side of the t...

A clock signal generator is responsive to a signal having a pulse repetition rate, and to a word instruction to generate a new signal having a pulse repetition rate according to the word instruction. The clock signal generator in one embodiment is capable of providing a plurality of clock signals each according to an associated word instruction.