article · English
Hybrid Computing at Ames Research Center: The Ames Linkage System and the Digital Logic Simulator
NASA Technical Memorandum TM-X-50975 from Ames Research Center describes two hybrid computing systems developed at the Center: the Ames Linkage System, which couples a remote analog simulator to a digital computer over 2500 ft of coaxial transmission lines for reentry vehicle flight simulation, and the Digital Logic Simulator (DLS), a general-purpose logic computing element placed in service September 1962. The paper details the Data Acceptance Routine (DAR) for efficient time-sharing of the digital computer between production work and simulation runs, and presents three DLS applications including heartrate computation from ECG data and probability distribution determination using hybrid techniques.
hybrid computinganalog-digital linkageflight simulationdigital logic