order matching

I have a doubt which is haunting me since several days. I hope somebody with clear basics can help me out. This is regarding limit orders and order matching. As I see, limit order is defined online from several sources as "An order to buy or sell stock at a specified price. The order can be...

I have this doubt about the order matching system of the stock exchanges. Suppose there is a scrip whose Last Traded Price is 1000. And suppose A enters a limit buy order for a scrip for 1100 and B enters a limit sell order for the same scrip for 900 and there are no other buyers or sellers or...