Linux and UNIX systems explain a course that operates immediately without needing any user interaction. Daemons are made to assist the consumer by doing duties generally performed.

For example checking for e-mail or in the HTTP (Hyper Text Transfer Protocol) demon operating.

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Martin Cooper (inventor) Inventing handheld cellular mobile phone Making world’s first handheld cellular mobile phone call. Martin “Marty” Cooper (born December 26, 1928) is an American engineer.