The document discusses the various input and output devices that comprise a computer system. It lists common input devices like the keyboard, mouse, joystick, light pen, trackball, graphic tablet, microphone, and magnetic ink card reader. Output devices mentioned include monitors in various technologies like LED and LCD, printers of all types, plotters, projectors, LCD projection panels, speakers, headphones, and visual display units. The presentation was given by Mr. Sanjay Shinde and students from the 5th semester of B.Sc to discuss the components of a computer.