... rendition and stability, and (5) ruggedness and long life expectancy. At present, solid-state camerashave settled into three main categories: (1) analog, (2) digital, and (3) Internet.2.6.2.1 Analog Analog ... now has at its disposal both analog and digital surveillance cameras. Up until the mid-1990s analog cameras dominated, with only rare use of DSP elec-tronics, and the digital Internet camera was ... and smoke. The outdoor system must with-stand extreme temperatures, precipitation (fog, rain, and snow), wind, dirt, dust, sand, salt, and smoke. The out-door systems use natural daylight and...