What characteristics define midrange computers?

Midrange computers are characterized by their position between mainframe computers and personal computers in terms of size and processing power. They are generally smaller than mainframes, which are designed to handle vast amounts of data and serve multiple concurrent users on a larger scale, but they are more powerful than personal computers, which are designed for individual use. This positioning allows midrange computers to effectively serve the needs of medium to large businesses, handling tasks such as data processing and enterprise applications, without the extensive capabilities and associated costs of a mainframe.

The other options do not align with the characteristics of midrange computers. For instance, stating that midrange computers are the most powerful in existence misrepresents their capabilities compared to mainframes. Describing them as exclusively for personal use contradicts the fact that midrange computers serve organizational purposes rather than individual users. Additionally, portraying them as portable and battery-operated does not accurately describe their typical form factor, as midrange computers are usually stationary and not designed for on-the-go use.