Mainframe is a class of computers that controls many connected uses and has a high volume of transactions hence providing more reliable performance. Client-server and mainframe network promotes great

Mainframe is a class of computers that controls many connected uses and has a high volume of transactions hence providing more reliable performance. Client-server and mainframe network promotes great security of the computer network and has more control and hence can see what every computer is doing

Given these comments regarding mainframes--why use mainframes? What are they used for today?

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