What is delta-based version control in the VCS?

Good day, I read a book about git and I came across this point:

The major difference between Git and any other VCS (Subversion and friends included) is the way Git thinks about its data. Conceptually, most other systems store information as a list of file-based changes. These other systems (CVS, Subversion, Perforce, Bazaar, and so on) think of the information they store as a set of files and the changes made to each file over time (this is commonly described as delta-based version control)

Explain, please, the example or the diagram what is delta-based version control
April 7th 20 at 10:43
1 answer
April 7th 20 at 10:45
This is a set of incremental changes for each file. The increment is the difference (Delta) to changes in the file between the previous and current versions. For text files - it changes the lines, and for binary sequences of bytes.

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