Contact prints, photographs, and 35mm negatives of projects and work done at or by Washington University School of Medicine's Computer Research Laboratory (CRL). CRL was later renamed the Computer Systems Laboratory (CSL). Projects include: LINC, macromodular computer systems (MMs), and the Turing Machine experiment. LINC components are named in this subseries, since there are multiple names for components the following terms were used and common alternative names are in parenthesis: Console module (operators console, control panel), Display module (CRT unit, scope module, oscilloscope module), Terminal module (data terminal box or unit), Tape drive module (dual tape drive unit), Electronics cabinet (CPU cabinet). The Final LINC Evaluation Program Meeting, known as Convocation on the Mississippi, took place at the St. Louis Medical Society Auditorium March 18-19, 1965 and images from this event are found at: FC186-S11-SS02-B23-F08 thru F16. Materials from a binder titled "Macromodular Systems Project. Computer Systems Laboratory. Washington University. St. Louis, Missouri" are found in their original order at: FC186-S11-SS02-B26-F01 thru F23. A Turing machine was built by Wesley Clark and Bob Arnzen for an educational experiment at Washington University during the mid-1970s, and the photos for this are found at: FC186-S11-SS02-B26-F50 thru FC186-S11-SS02-B26-F54. See also FC186-S08-B20-F06 for related Turing Machine materials.