Analogue is typically referred to as chemical photography, it has a continuous pattern which is a representation of some other time varying quantity. It is contrasted with the digital procedure. The method of analogue recording is used to record analogue signals which could either be analogue audio or analogue video. Analogue is referring a signal whose output is proportional to the input. It can be stored as a physical texture, photograph record or a magnetic recording.
DIGITAL
Digital imaging doesn't really require chemicals, film can be either chemical or digital. The way digital image captures/records is by utilizing photo sensors which processes the images through a special software. Or film can be kept in digital form for a digital projection. Digital signals are pattered in to states which are ON (1) or OFF (0). When it’s a chemical process a light sensitive silver halide, light gets exposed on film which creates the images, movie projectors are a mechanical device which can display motion pictures onto a screen
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