This document discusses CCTV camera types and installation. It defines CCTV as a system used to monitor or record images on premises. There are two main types of CCTV systems - wired and wireless. CCTV cameras have various benefits including maintaining security, observing behavior, traffic monitoring, and overseeing hazardous areas. The different types of CCTV cameras include indoor cameras, outdoor cameras, IR day/night cameras, dome cameras, bullet cameras, vandal proof cameras, and PTZ cameras. The document provides brief descriptions of each camera type and their common uses. It also mentions that CCTV installation involves the hardware and software components being fully installed and operational.