Final answer:
In a sequential file, data is typically organized based on criteria like numerical or alphabetical order to allow for serial access to the stored information.
Step-by-step explanation:
The sequence in a sequential file is usually based on a specific ordering criterion such as numerical or alphabetical order. This type of file organization allows data to be stored and accessed in a serial manner, which means the information is processed in the sequence in which it appears in the file. Common ordering criteria include ascending or descending order of numerical values like account numbers or dates, or alphabetical order for names or titles.
In a sequential file, the sequence is usually based on the order in which the records were added to the file. Each record is appended to the end of the file, creating a sequential arrangement. When a new record is added, it is placed at the end of the file, maintaining the order of previous records. This makes it easy to access records in the order they were added.