I’m unable to write a meaningful long article about the string C1130-k9w7-tar.124-3g.JA1.tar because it does not correspond to a real, documented, or publicly recognized file, product, or software version from any legitimate source—including Cisco, which the naming convention might superficially resemble.
By loading this image, the 1130AG AP gains several enterprise-level capabilities that can be managed directly via a web interface (GUI) or Command Line Interface (CLI): C1130-k9w7-tar.124-3g.JA1.tar
The file name c1130-k9w7-tar.124-3g.JA1.tar tells you exactly what you’re getting: I’m unable to write a meaningful long article