Ms. (Cite Contribution) has described, and I would like to add that a dashboard is a high-impact data summarization tool that helps make better-informed decisions. The data is represented graphically, allowing you to see what's happening at a glance.
It's similar to an MIS report and includes all major HR activities such as headcount, new recruitment, resignations, training, compensation data, statutory data, benefit data, and many more. This acts as an input for preparing future plans and programs for the organization. You may present it in a PPT. I would advise checking Google for more details.