This example demonstrates a simple HTML quiz form that tests the user's knowledge of computer platforms, with radio buttons for Windows, Apple, and Unix. It evaluates the selected answer using JavaScript, increments a score counter for correct responses, and displays an alert if the answer is wrong. The page also shows the current time using the JavaScript `Date` object and `getElementById` to update the displayed timestamp. The code relies on vanilla HTML form elements, inline event handlers, and basic DOM manipulation without external libraries.