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Unformatted text preview: stored. The most common access technique, and the simplest to implement, is sequential access , which views the file as a linear structure. It requires that the information in the file be processed in order. Read and write oper-ations move the current file pointer according to the amount of data that is read or written. Some systems allow the file pointer to be reset to the beginning of the file and/or to skip forwards or backwards a certain number of records. See Figure 11.2. Files with direct access are conceptually divided into numbered logical records. Direct access allows the user to set the file pointer to any partic-ular record by specifying the record number. Therefore, the user can read and write records in any particular order desired, as shown in Figure 11.3....
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- Fall '10