NEAL GRUNDY / SCIENCE PHOTO LIBRARY NEAL GRUNDY / SCIENCE PHOTO LIBRARY
Keyboard use. Conceptual image of hands over the printed electrical circuit of a computer keyboard. Each crossed dot is the connection point for a key on the keyboard. When the key is pressed down, the connection is closed and an electrical signal is sent to the output terminal (upper left), and then on to the computer. This results in some action by the computer, as well as this action being shown on the display screen.
Model release not required. Property release not required.