sync all my apple products
I JUST BOUGHT 3 MAC HOME COMPUTERS FOR MY REAL ESTATE OFFICE AND I HAVE A MAC BOOK PRO I PAD AIR AND 3 IPHONE 6 THAT I WANT TO KNOW IF IM ABLE TO NETWORK OR SYNC THEM ALL TOGETHER THANKS FOR ANY HELP
iMac, iOS 8.1.3
You can connect them to same network and use file sharing
Mac Basics: File Sharing - Apple Support
You can keep documents and other things in iCloud Drive and aces them from any device:
Mac Basics: File Sharing - Apple Support
iCloud Drive FAQ - Apple Support
You can also use apps/services like DropBox and and Google Drive to keep files in sync.
However, you can only sync iOS devices like an iPhone with one computer
You can share your iTunes library on the computers by: