I only brought this subject up because of an update to Apple's computer software.
I'm only just discovering how Apple like to intertwine their 'devices'.
I've always been an Apple fan as I had to use their technology at work. You don't need to know a lot about these kind of computers as they are 'intuitive' - they just work.
The latest thing happening is that if someone calls me on my iPhone I can now take the call on my iMac - I don't miss a call if the Mobile is in another room while I'm on the computer.
Another thing is I can receive and send text messages from my iMac too.
This may not be remarkable to some people but I find it fascinating. What an interesting world we live in!