Audiovisual (AV) is electronic media possessing both a sound and a visual component, such as slide-tape presentations, films, television programs, corporate conferencing, church services, and live theater productions.
A camera is an optical instrument used to record images.At their most basic, cameras are sealed boxes (the camera body) with a small hole (the aperture) that allow light in to capture an image on a light-sensitive surface (usually photographic film or a digital sensor).
Security technology to the protection of assets depends on the requirements and conditions of the security management plan. That is, the function of security technology within a security protection strategy is to support the security management plan.
Smartphones have largely replaced PDAs and handheld/palm-sized PCs. Improved hardware and faster wireless communication (due to standards such as LTE) have bolstered the growth of the smartphone industry. In the third quarter of 2012, one billion smartphones were in use worldwide.