Explain the difference between sequential and direct file access. A. Sequential access to data is used when the data has to be read from the start, in sequence. It is the normal method of access for...
Indexed sequential file organization. =In indexed sequential file organization, the records arestored in sequence according to a primary key and an index is created to allow random access of the...
Serial File -in serial file, the records do not folow each other in any particular order, so if another record needs to be added, it just can be added in the end of the file.Sequential...
RAM stands for Random Access Memory. Computer memory chips on the mother board are random access. Disks drives are mostly random access, in that the head can shift to the location of the data to be...