Mavericks Вђ” 10.9.3 (app | Store) [intel]

This indicates the third major update to Mavericks, which was released in May 2014, known for improving 4K display support and syncing capabilities [1].

Specifies that this version is for Intel-based Mac computers, as Mavericks was released well after Apple's transition away from PowerPC processors. Mavericks — 10.9.3 (App Store) [Intel]

The string refers to a specific version of the Apple macOS Mavericks operating system (version 10.9.3) . This indicates the third major update to Mavericks,