GNU/Linux Mint 19 iMac Wi-fi Driver Installation Guide
Hi! The Post shows you How to Install iMac Wireless Wifi/Bluetooth Driver in Mint 19.x Tara/Tessa/Tina/Tricia GNU/Linux.
And iMacs are equipped of the Broadcom Wi-fi Cards.
So the linked Guide describe Step-by-step How to Install Broadcom Wireless Driver on Linux Mint 19.
How to Install iMac Wireless Driver on Mint 19 GNU/Linux