Describe the approach taken to the handling of data in the early file-based?

In the early file based system their all data was in written form, due to the lake of education, due to the in-femelarity with new techniques, lake of computer knowledge so all the data required would be stored in a file or files owned by the programs.

Clearly, each program was responsible for only its own data, which could be repeated in other program's data files. Different programs could be written in different languages, and would not be able to access another program's files. This would be true even for those programs written in the same language, because a program needs to know the file structure before it can access it.