Software executes on a processor of a device, such as an automate teller machine, at start-up to perform validation of expected peripheral devices for a predetermined number of start-ups. Methods include receiving the data packet, examining the data packet, determining a single flow record associated with the packet and extracting flow instructions for two or more devices from the single flow record. A set of latches triggered by incrementally delayed signals from the edge generator can capture samples of the data signal. A mini-display panel of the portable computer system displays control status information associated with playing of the plurality of digitally encoded data files in the digital data mode. The game is controlled by player-made choices with respect to selecting areas to uncover on the game pieces that are potential winners. An active valve is located upstream of the first check valve.