Write a web page that will allow users to order computers and related parts.

The order form should have input fields for user contact information, including name, mailing address, email, and telephone number, as well as a list of computers and a list of parts.

The user inputs need to be validated, and the total cost of the order should be dynamically shown whenever a selection is made or changed.

Once the form is submitted, the user inputs should be displayed in a well laid-out format including the IP address of the user’s computer