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Magnetic bubble mass memory

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2 Author(s)
Michaelis, P. ; Bell Laboratories, Murray Hill, N.J. ; Richards, W.

An experimental magnetic bubble mass memory module complete with all control function and detection electronics has been built and operated. The module contains twenty-eight 16 448-bit mass memory chips and operates at a nominal rotating field frequency of 100 kHz. The module has an average access time of 2.7 ms, a read/write cycle time of 5.14 ms, and a data rate of 700 kbit/sec. A read error rate of <1.6 × 1012and error-free propagation in excess of 8.4 × 1015bubble cycles have been demonstrated.

Published in:

Magnetics, IEEE Transactions on  (Volume:11 ,  Issue: 1 )