Yesterday I went to a store to buy an electronic toy that cost about $100. When I went to the checkout the clerk told me their computer systems were down. Either I would have to wait for up to 30 minutes for them to fix it or come back later. What? Who has time to wait for 30 min or go back again in this busy Christmas season? Needless to say he lost my sales along with the sales from many other customers like me. Such is the important of having reliable computer system in your business. When it works well it can help businesses tremendously, but when it goes down it can result in lost sales, unhappy customers and lost productivity.