Explanation:Each side of a platter of a disk has a read–write head that moves across the platter to access different tracks. 4. The disk controller uses ________ at each sector to ensure that the data is not corrupted on data retrieval.
A. Checksum
B. Unit drive
C. Read disk
D. Readsum
Answer:A
Explanation:Each side of a platter of a disk has a read–write head that moves across the platter to access different tracks. 4. The disk controller uses ________ at each sector to ensure that the data is not corrupted on data retrieval.
A. Checksum B. Unit drive C. Read disk D. Readsum