The right software can make even the most complex electronic systems easy for anyone to use. Many businesses choose to install a control system, which provides a single interface where the different electronic systems in a room or throughout an entire location can be controlled. Smart phones and tablets are often used as controllers. This makes using a control system more intuitive and brings costs down. Examples of the different systems a control system can bring together include video displays and related components, audio systems, audio and video conferencing, HVAC, lighting, surveillance/security and more.