Computer knowledge

Types of  Data Access Methods  ACCESS Methods The information of records is stored in a file. Logical structuring of these records is necessary so that records can be retrieved easily and quickly. The arrangement of these records on secondary storage and the ways of accessing these records are referred to as file organization.  The stored information into files can be accessed by using different ways. But the fundamental method that is commonly used to access information from files are as follows: sequential Access Method Direct Access method  Indexed Access Method  Sequential Access Method The sequential access method is the oldest and simplest access method. In sequential files, records (or information ) are stored in physical order. These records are accessed in the order in a system, one after the other. In other words, read and write operations in a computer network system on sequential files are done in sequential order. Records are reads one by one starti...