Which characteristics are key components of microcomputers?

The choice identifying memory, storage, input and output devices, and a microprocessor as key components of microcomputers is correct because these elements are foundational to how microcomputers operate.

Memory refers to the system's RAM and cache, which store data temporarily for quick access by the CPU. Storage encompasses hard drives or solid-state drives that retain data long-term. Input devices, like keyboards and mice, allow users to interact with the computer, while output devices, such as monitors and printers, enable the computer to convey information to the user. Lastly, the microprocessor is the core component that performs calculations and runs programs, acting as the brain of the computer.

These components collectively define the functionality and operational capability of microcomputers, enabling them to perform a diverse array of tasks for individual users. The integration of these elements is what distinctly characterizes microcomputers, differentiating them from larger computing systems designed for multi-user environments or specialized processing needs.