Final answer:
Computers are not categorized by owner; they are grouped by criteria such as size, price, and speed. Owner is not a standard method of classification for computers as it relates to who uses the computer rather than its technical aspects.
Step-by-step explanation:
The direct answer to the question is: Owner.
Computers are typically categorized based on several criteria, but owner is not one of them. They are often grouped by size, which refers to the physical dimensions and capabilities, such as personal computers, supercomputers, and mainframes. Price is another factor, which can represent the range of costs from budget-friendly to high-end models. Speed is also an essential classification, referring to the processing power and how fast a computer can perform tasks. The categorization by owner is generally not a standard method of grouping computers, as ownership is more related to the user rather than the machine's technical specifications or capabilities.
Computers are grouped into various categories based on different criteria. However, owner is not one of the categories used for grouping computers. The common categories used to group computers are size, price, and speed.