Proposed symbology for digital systems

The urgent need for a reference on suggested algebraic and graphical symbols for the design and maintenance requirements of digital systems prompted the preparation of this report. It is also intended to serve as a reference for the symbology used in tutorial lectures sponsored by the AIEE Subcommittee for Logic and Switching Circuit Theory of the Computing Devices Committee. Included are algebraic symbols for representing variables and connectives used in logical expressions; graphical symbols for manually prepared logical diagrams; and printed graphical symbols for logical diagrams prepared by high-speed printers.