Hello Magento friends in there blog post i'm share knowledge with you How Many Types there magento store product
In Magento there are six types of Catalog and each Catalog having different- different functionality- 
- Simple product is also defined as its name, which means that this kind of product is sold in each single item.
- Configurable Product The collection of various products with different options of colours and sizes.
- Grouped product It is a group of Simple products or Virtual Product which shares the same characteristics or are related to each other. It can save more than buying separately.
- Virtual product is a type of service, membership, warranty or subscription. It doesn’t require shippers or delivery.
- Bundle products customized are Bundle Product which includes various Simple products or Virtual Product.
- Downloadable products are able to download such as software, files, ebook, video, etc., they just need download then can use the product.