Answer:
The ability to work together without changing is compatibility.
First is, various software versions included or installed on the computers. The second is the various operating systems in the computers.
Different video files and operating system versions_ can cause compatibility issues to arise between computer systems.
It might trigger compatibility problems with a few of the existing software once you update or even upgrade your operating system. This issue is very rare with upgrades, but very popular with full version upgrades such as Windows 7 to Windows 10.