OD))Accessing Records from computer Files: Sequential vs. Direct or random file organization SEQUENTIAL: Data records must be retrieved in the same physical sequence in which they are stored. (Magnetic tape DIRECT Data can be accessed without regard to physical sequence. Disk) Direct file Sequential file p organization organizationHUANG Lihua, Fudan University Accessing Records from Computer Files:Sequential vs. Direct or random file organization • SEQUENTIAL: Data records must be retrieved in the same physical sequence in which they are stored. (Magnetic tape ) • DIRECT: Data can be accessed without regard to physical sequence. (Disk) * Direct file organization Sequential file organization