Joining a Zoom meeting can be done by using a meeting ID or a web link with the meeting ID embedded. The free Zoom software needs to be installed to join a meeting and can be downloaded from https://www.zoom.us/download.
Join by Meeting ID
The meeting ID is provided by the instructor or host of the meeting.
Start Zoom and click join a meeting button.
Enter the Meeting ID. You may also set your screen name.

Click Join. Continuing reading at Join Audio.
Join by Web Link
The instructor or host can provide a web link that can be clicked or pasted into a web browsers address bar.
The web link looks similar to: https://nsuok.zoom.us/j/123123123
The web browser will usually ask permission to open Zoom. This example image is from the Chrome browser and will look different depending on the browser used. Click yes/open.

Join Audio
Zoom may pop up with a Join Audio option. Click the green button “Join Audio Conference by Computer”.

You should now be in the meeting with audio.