To use a cam-to-cam chatroom, you need a webcam and a program that connects to a chat service. There are several options for both of these requirements.
Most modern laptop computers come with a camera installed that will allow the user to chat using programs such as TinyChat, Skype, and Google Hangouts. Many chat programs offer different functions, including integration with social media accounts and "random chat" options. If your computer does not come with a camera installed, many websites, including Amazon.com, offer them for as cheap as $1. Additionally, you may need to buy a microphone to allow voice chat.