What is the best kind of computer system to use to keep track on inventory in a resale shop? -

You can take a look at inFlow Inventory. It is a basic inventory system that has all the esstenials.They have a Free version that is free forever, but limits to 100 products and customers. The software itself is very easy to use and fast to install.Here is their website:http://www.inflowinventory.comHope this helps!