TeachMeFinance.com - explain digital
digital The term 'digital' as it applies to the area of Earth observation can be defined as ' In signal processing this refers to the representation of quantities in discrete units. The information is contained and manipulated as a series of discrete numbers as opposed to an analog representation where the information is represented as a continuous signal. In practice, even analog signals are usually processed digitally in that the analog signal is sampled to create a digital signal that can be processed by inherently digital computers'.
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