Surveillance technology has undergone a revolution in the past several years, reports ASIS International Security Management Online. Systems once made up of low resolution analogue cameras hooked up to VCRs and monitors now consist of analogue and IP cameras attached to encoders, networks, and ever-evolving digital video recorders (DVR) and network video recorders (NVR). These advances create not only great potential but also problems, including increased demands on unprepared corporate networks and unheard of bandwidth and storage needs. This overview looks at some integral aspects of video surveillance systems to help managers make more informed decisions about the system features that will best meet their needs.Security Management Online features a 5-page web article on advances in CCTV surveillance technology, designed to help security managers make better informed decisions about how to employ digital CCTV:
http://www.securitymanagement.com/article/decoding-digital-picture
