For IP Cameras, do I need a DVR for recording?

IP Cameras record very high quality images (depending on your model), recording this surveillance feed on a DVR is possible but not the best decision as you would require an exorbitant amount of hard disk space and multiple DVR's to cover all your cameras.  IP cameras operate differently from a regular CCTV camera, they can be connected right to your network and they have a RJ45 connection on the back, no coaxial cables. The video is stored on your computer’s hard drive rather than a special DVR storage system.