I currently have my iMac connected to a monitor. I was wondering if I can connect two iMacs together to use the monitor as a second monitor and the extra storage? My current iMac is running on Catalina 10.15.7. The second iMac is a newer computer, but I don't remember the OS version.
No.
It is possible to serve storage from one to the other (a so-called “file share”), and a few other sharing-related details, but there's no means to create a twin-sized computer by lashing together two single-sized computers.
Some old iMacs introduced between 2009 and mid 2014 support Target Display Mode.
Use your iMac as a display with target display mode - Apple Support
However, Apple added the restrictions that
That means that no current or recent Mac supports using ANY iMac as a Target Display.
I figured as much. Thank you for your timely reply.
Is it possible it connect two iMacs together?
