Public domain photos

The image shows a man wearing a blazer, tie, and spectacles standing in front of a whiteboard with a circuit diagram on it. He is pointing to the diagram, and there is another person standing to his left. The image is in black and white.

The image shows a man wearing a blazer, tie, and spectacles standing in front of a whiteboard with a circuit diagram on it. He is pointing to the diagram, and there is another person standing to his left. The image is in black and white.Open in library