MSR or IDM/MSR (1971 to 1972)
Strand

Redesigned version of IDM/DL.
MSR stands for either Memory System Rack or Memory System Rank.
A total of 20 IDM/DL or IDM/MSR systems were installed between 1966 and 1972.
Entertainment Technology Resources & History
Redesigned version of IDM/DL.
MSR stands for either Memory System Rack or Memory System Rank.
A total of 20 IDM/DL or IDM/MSR systems were installed between 1966 and 1972.