Which type of computer typically has the lowest processing power and cost?

The choice of microcomputer as the correct answer is based on its characteristics of having lower processing power and cost compared to other types of computers. Microcomputers, commonly known as personal computers, are designed for individual use and typically include desktops, laptops, and tablets. They are built with sufficient processing capabilities to handle everyday tasks such as word processing, web browsing, and basic data management but are not equipped for high-performance applications that require significant computing power.

Mainframe computers, on the other hand, are large and powerful systems designed for bulk data processing and high-volume transaction handling, making them much more expensive and complex than microcomputers. Midrange computers offer more processing power than microcomputers, serving as a bridge between them and mainframes, tailored for tasks requiring a bit more capability but still typically at a higher cost. Workstations are high-performance systems tailored for demanding tasks such as graphic design or scientific simulations, which also results in a higher cost due to advanced hardware.

In summary, microcomputers are built to be affordable and user-friendly for general purposes, whereas the other types of computers are designed for specialized roles requiring more power and investment.