ACCEL: Automated circuit card etching layout

Printed circuit board design time can be greatly reduced by the use of a computer program called ACCEL developed jointly by Sandia Corporation and the Thomas Bede Foundation under contract to Sandia. The ACCEL program designs printed circuit boards and proceduces the drawings for their construction. The program is designed to handle components with up to four leads each. The input is encoded from an engineer´s schematic diagram by a clerk with no knowledge of electronics. The computer edits the schematic data, places the components on the board, and generates the interconnections between components, all in one run. The outputs of the program are a schematic, parts list, printed circuit etching negative, assembly drawing, and a hole drilling list. The program is written in FORTRAN II for the IBM 7090 computer and the drawings are produced on the Stromberg-Carlson 4020 cathode ray tube plotter.