Which of the following statements about computer systems is wrong?

Which of the following statements about computer systems is wrong?
A . Computer systems are built on the underlying hardware. Common server types include tower, blade, rack, etc.
B . Computer software can be divided into system software at the bottom layer, application software at the top layer, and middleware between the two.
C . Minicomputers and mainframes use the "host-terminal" mode of operation
D . The common X86 architecture server originated from mainframes and belongs to CISC complex instructions (X86 did not originate from mainframes)

Answer: D

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