A computer for use with navigation charts can determine any one unknown in the formula, speed x time = distance. The computer has a pair of speed scale arms with similar speed scales displayed thereon. Each arm terminates at one end in a speed scale point which is positioned on a check point of a navigation chart. At the other end the speed scale arms are pivotally connected. A time scale arm has a time scale displayed thereon and is pivotally mounted on one of the speed scale arms. The time sca...

A navigational computer that employs displays and registers to place in and retain the estimated ground speed, the time of day, and the distance of the leg of the flight. An arithmetic unit accepts such information and calculates the estimated time of arrival, the actual ground speed, and the distance remaining in the present leg of the flight. Three readout displays provide such data to the pilot.

In the disclosed portable computer, a keyboard with keys for entering at least a full alphabet and ten digits is coupled to a computer system that includes a central processing unit which is in turn coupled to a display arrangement with a liquid crystal display. The entire computer is mounted in a case composed of a base and a cover hinged to the base. The base houses the computer system and the keyboard, and exposes the keyboard for operation by a user when the cover is open, while the cover ho...

An interface (10) between a first (MC, 30) and second (SC) computer employs a multiplexer (46) and a coupler (48, 50). The first (MC, 30) and second (SC) computers have a first (LA/B, LEX0-15) and second (CX1-21, CA1-15) plurality of information lines, respectively. These computers also each have a group of control lines (36, 42). The multiplexer (46) is connected to the first and second plurality of information lines (LA/B, LEX0-15, CX1-21, CA1-15). The multiplexer (46) is operable to separatel...

A parallel computer of a MIMD array type suitable for high speed computations in engineering and science, comprising a master unit, N submaster units and a two dimensional array of N.sup.2 arithmetic units having own processors and private memories respectively, and further N common memories each of which is used for transferring some data between a submaster and a corresponding set of N arithmetic units, and finally a three dimensional array of buffer memories with a capacity being composed of ...

A computer desk may be utilized with computer keyboard terminal equipment or other devices requiring manual manipulation by a user. The desk permits the efficient support of such devices without sacrifice of the desk top working surface available to the user. The computer desk provides a support surface immediately below the work surface of the desk top. This support surface extends toward the desk-user a greater distance than does the desk top work surface. Thus, there is no interference betwee...

An apparatus and method is disclosed for providing an emulating computer. The present invention consists of a computer having a storage area, processing unit, control circuits and translation circuit. The original instructions are first loaded into the storage area. When the processor attempts to operate an instruction the control circuit loads a section of the instructions into the translating circuit. These instructions are then translated and stored in a memory area of the translating circuit...

A vector processing computer is configured to operate in a pipelined fashion wherein each of the functional units is essentially independent and is designed to carry out its operational function in the fastest possible manner. Vector elements are transmitted from memory, either main memory, a physical cache unit or a logical cache through a source bus where the elements are alternately loaded into the vector processing units. The vector control unit decodes the vector instructions and generates ...

A computer system has a CPU, a main memory and an additional memory storage which is difficult from the main memory and an external storage. The additional storage may transmit data with the main memory and/or the CPU.

A portable computer is contained within an outer metal case which physically encapsulates and protects the working components of the computer in the closed, portable configuration. The metal case includes a base which serves as a heat sink for transferring waste heat from heat producing electrical components to the surroundings in the open, operating configuration of the computer. The heat producing components are mounted and located in the base to maximize the transfer of heat to the base. A di...