Using of iMac like screen for macbook air
My iMac is a 21.5" 2013 serial number DGKMW0B1F8J7
My mac book is a 13" 2019 series number FVFYT1QUM6X5
Is it possible to use the iMac like screen for my mac book?
iMac 21.5″, macOS 10.15
If your iMac was made between 2011-2014 and it is running macOS High Sierra or earlier, you can use target display mode. Other than that, your only option is to use airplay.
