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Potable water is
Hardware
The visible parts of a computer system (keyboard, disk drive, monitor, and printers).
Software
Computer programs necessary for directing the computer hardware to perform specific functions; refers to the application programs containing instructions to the computer that enable it to perform tasks. A computer, by itself, cannot do anything without software for accessing and inputting data.
CPU
The Central Processing Unit, also known as the CPU, is the main element of a computer responsible for executing the majority of computations within the system.
Hardware
The physical components of a computer system, including the processor, memory devices, and peripherals.
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