Artifact Details Title Pulse recording systems using phase modulation signals Catalog Number 102660421 Type Document Date 1965-01-28 Author Eckert, J. Presper (John Presper) Identifying Numbers Origins of Cyberspace 1218 Category Technical Report Collection Title J. Pres Eckert papers Series Title Writings : Technical Reports & Notes Credit Purchase of the Computer History Museum Lot Number X3115.2005