Question

Materia demands more concern and awareness than the infamous corona virus

Answer 1

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A computer is a machine that can be programmed to carry out sequences of arithmetic or logical operations automatically. A computer system is a "complete" computer that includes the hardware, operating system (main software), and peripheral equipment needed and used for "full" operation.

Answer 2

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The OSI Model Defined

In the OSI reference model, the communications between a computing system are split into seven different abstraction layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application