What role does software play in a computer?

The role of software in a computer is crucial as it provides the instructions that enable the hardware to perform its functions. Software can be thought of as the brain of the computer system, as it includes the operating systems and applications that dictate how hardware components interact with each other and execute various tasks. It translates user commands and inputs into machine-level instructions, allowing the hardware to carry out specific operations, whether that be running programs, managing files, or facilitating communication between different hardware components. Without software, hardware would remain idle and unable to execute any meaningful tasks, as there would be no directions for operation.

The other options relate to different aspects of computer functionality: electrical power is provided by the computer's power supply, hardware connectivity is managed through physical components and interfaces like motherboards and buses, and static electricity protection involves hardware design considerations and external environmental factors rather than the direct role of software.