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  CHM042a.JPG - Another memory technique was the memory delay line where bits are stored as traveling mechanical torsions created and read by piezo actuators on a nickel-alloy wire. The Computarium's Olivetti Programma 205 and Friden EC-132 use such a device for their cache memory.  
CHM042b
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CHM042c
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CHM043a

Another memory technique was the memory delay line where bits are stored as traveling mechanical torsions created and read by piezo actuators on a nickel-alloy wire. The Computarium's Olivetti Programma 205 and Friden EC-132 use such a device for their cache memory. Download
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