Digital electronic circuit for addition, subtraction multiplication and division - has circuit based brown binary adder and shift registers together with pulse generator units

摘要

The digital electronic circuit is used to provide all four modes of operation for arithmetic processing. The numbers are keyboard entered in series and are converted into 4 bit binary code form. The selection of operation for addition, subtraction, multiplication and division is made by operation of function keys. The basis arithmetic process is provided by a 4 bit binary adder/subtractor (6) with shift register storage (22) of data input. Outputs of the registers connect with 4 lines via diodes. A pulse generating circuit provides control inputs. USE/ADVANTAGE - Simplified arithmetic processing.