In the most basic terms, a shopping cart is software that allows you to list your products on a web site and then automatically collect fees when a customer buys products from your website. The software allows you to add product images, descriptions, prices, shipping and tax rates, and so on. For more information visit here : http://cloud-iq.co.uk/news/entry/first-ever-shopping-cart-launched-into-and-recovered-from-space#.U9cjYteKm1E