The Omega can be accessed with a serial connection when it is plugged into your computer.
You can also use SSH to connect to the Omega as long as it's on and your computer is on the same wifi network. SSH is cool because you'll be using your Omega wirelessly!
If your computer is on the same wifi network as the Omega, the Omega will be accessible via the omega-ABCD.local address.
Where ABCD is 4 hex characters that are unique to each Omega and can be seen on the sticker on the Omega or in the Omega's default WiFi AP name.
For full details, see our Guide to Connecting to the Omega's Command Line with SSH.