I have been a Scrum Master for the last 3 years at a large financial institution. Before that I was a Waterfall Project Manager for over 5 years but once I was introduced to Agile and the Scrum Methodology I converted.
To understand whether to use a physical or virtual Task Board for your Agile team you need to know all the advantages and disadvantages of each. I will be listing from my own personal experience what I have witnessed.
Understanding the Advantages and Disadvantages of a Physical and Virtual Scrum Board
Basic Agile knowledge