iMac as a wireless access point to internet
Hi anyone knows iMac as a access point to internet to use other gadgets
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Check out System Preferences > Sharing > Internet Sharing
If your iMac is connected to your broadband modem with an Ethernet cable, you can share access to it via WiFi.
If your iMac is connected to your broadband modem with Airport Wifi, you can share access by plugging a device into the iMac via Ethernet cable.
So yes, you can share the access by Ethernet cable or WiFi, one or the other. Not both simultaneously.