Answer:

A shopping cart is a type of service that allows a visitor to your site to purchase products. Shopping carts are typically, software that is integrated with a website, that allows products to be listed within the site. The products are incorporated into the pages of the site and can be viewed by clicking on links. After products have been selected, the customer can checkout, and purchase the intended items. Shopping cart solutions can come in different formats. Online businesses that want to sell a variety of products, have the ability to change and update promotions and specials, or update new stock, will want an advanced shopping cart. These types of shopping carts are more expensive but provide the best functionality. Website that sells only one product at a fixed price can relay on inexpensive solutions. The use of an online shopping cart hosted by a web-hosting firm can be an efficient alternative. A shopping cart that utilizes a simple Paypal account may be a more suitable method. Or utilizes Authorize.net (AIM/SIM) online payment method.