These software archive prove to be very useful if you have a poor internet connection, or if, for some reason, you cannot apply the patch through the default channels. However, on the Apple support page, there are also direct downloads for each patch, which can be saved to the disk and installed separately.
Usually, the macOS software updates are handled automatically either by the built-in Software Update tool, or by the Mac App Store application, depending on the macOS version you are running.
