Computer hardware; computer software; data storage device; data processing apparatus; handheld computer; portable computer; programmable data acceses processor; computers; computer terminal; bar code readers; computer input/output recorder; scanners; personal digital assistant; optical character readers; electronic data integrator; calculating machines; cash registers; electronic computing machine; liquid crystal display; monitors (computer hardware); computer screen; computer touchscreen; computer mainframes; computer operating programs; computer programmes (programs), recorded; computer operating programs, recorded; computer application software for mobile phones; downloadable computer application software; computer firewall software; work stations (computer apparatus); internet device, namely "internet servers", "internet phones", "internet protocol televisions"; tablet computers; network server; data carrier; computer motherboard; interfaces for computers; memory expansion cards; network card; graphics accelatator card; image capture card