Network video recorders come in different forms. A desktop computer or laptop can be converted into an NVR using software. For someone who wants to install their own security camera system, this is the easiest and cheapest way. Some cameras come bundled with free professional recording software. This lets users convert any computer which meets the minimum software requirements into a power surveillance monitoring tool with features similar to what large companies use. For businesses and advanced users, this is not recommended. An NVR is a DVR for IP security cameras.