(a) Manual data processing method: In this method, data processing is done manually using simple tools like pen and paper.
(b) Mechanical processing method: In this method, data is processed using mechanical devices such as typewriters or simple calculators.
(c) Electronic processing method: This method involves the use of sophisticated devices such as computer systems to process data.
maurice.mutuku answered the question on April 17, 2018 at 13:22
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