End Of File (EOF)
Definition - What does End Of File (EOF) mean?
Techopedia explains End Of File (EOF)
The BOF and EOF markers represent some very simple syntax that was used for even the most primitive computing systems in the early days of programming. These types of tags and markers promote the idea of looking at code as a straightforward translation from machine language to a linear, accessible programming language.
As mentioned above, one of the problems that EOF helps to solve involves open-ended read/write or read operations. A linear program without an EOF marker may try to read past what’s in the file, returning one of a number of errors. To prevent this, a code loop can check for EOF with each iteration, to make sure that the execution ends at the end of the file, regardless of its length.