The place where the speed of a point of sale system matters above all others is at the sales counter. The photo shows one of the registers at one of our own newsagencies. This is where we test every update long as one step in our extensive QA process. If it fails here the software is not sent to our 1,500 newsagent customers. We do similar live QA testing in other businesses in which our software runs. performance is key and we have too much at stake to send out software which is not the fastest going around.