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read only memory

n. (alternative spelling of read-only memory English)

Wikipedia
Read Only Memory (EP)

Read Only Memory is an EP by the American experimental rock band Chrome, released in 1979 by Siren Records.

Usage examples of "read only memory".

Had her mind been in Random Access Memory instead of running on a Read Only Memory pack, it would have been the end of her.

He bent to dissect the bug, carefully excising out the Read Only Memory section of the transponder.