Final answer:
Large organizations such as insurance companies and banks use mainframe computers, while microcomputers, also known as personal computers, are the most widely used computers. Smartphones are not considered traditional portable computers.
Step-by-step explanation:
Organizations such as large insurance companies and banks would use mainframe computers because they have the power and capacity to handle large amounts of data and run complex applications. Minicomputers, also known as midrange computers, are smaller in size and processing power compared to mainframes but can still handle multiple tasks concurrently. Microcomputers, on the other hand, are the most widely used and fastest-growing computers, commonly known as personal computers or PCs. They are used for general purposes by individuals and small businesses.
Smartphones, while portable, are not considered portable computers in the traditional sense. They are mobile devices that combine computing capabilities with telephony, internet access, and other features. They have become increasingly powerful and popular, but they have limitations compared to traditional computers.
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