Can I connect and xbox 360 to an iMac computer/Monitor for use? If so, how???

Hi BrianHT, my name is Adam.

To connect your Xbox Series S to your iMac, you can use an Elgato HD60 S+ device to connect the game console to your Mac computer and play games on the Mac screen.

Alternatively, you can use a mini-display-to-HDMI adapter to connect your Xbox Series S to your iMac. You can pick up these adapters from Amazon for a reasonable price. Here are the steps to connect your Xbox to your iMac using an HDMI cable:

1. Connect the mini-display-to-HDMI adapter to the back of your iMac.
2. Connect the HDMI cable from your Xbox to the adapter’s HDMI slot.

Once you have connected your Xbox to your iMac, you can use your iMac as an external monitor for your Xbox.

I hope this helps.
Adam.

You’ll want to grab a micro-USB cable to hook your Xbox One or Xbox 360 controller up since Bluetooth is out. Luckily, there’s still a way you can get things working. It will require a bit more craftiness on your part, but it’s nothing you shouldn’t be able
to handle.

I don't think the OP is asking how to connect an Xbox controller to an iMac, they appear to be asking how to connect the console to it.

If they are indeed asking how to connect the console to the iMac to use its screen, then I'm sorry but that isn't going to work. The connectors on the iMac (Display port or HDMI) are
outputs only. This means that they can only be used to output the iMac screen on a external display, you can't input a video signal into the iMac screen.

Hi, my name is Fernando and I am an independent consultant for Microsoft products.

Yes you can use the iMac as a monitor, you'll just need the mini-display-to-HDMI adapter connected to the back of your iMac.

So, just connect the other side of the mini display cord to the corresponding port in your adapter box and c onnect your HDMI cable from your Xbox HDMI port to the HDMI port of your adapter.

I tried with the original hdmi cable and other two hi quality cablE, I've an iMac, xbox one and a xbox 360 connected to my Dell 2709 monitor, last week I connected a PS4 and played Big Hero 6 blu ray without troubles and using same hdmi cable.

I tried to connect my xbox one to a Sony TV and it goes, why I'm forced to use a TV when I've a wonderful monitor?

No, that would not work as you cannot use the iMac itself as an external monitor. The iMacs only have external video output and no video input to use as a separate monitor.