题目内容

The_______model is the basis for today's computers.

A. Leibnitz
B. von Neumann
C. Pascal
D. Charles Babbage

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n a computer,the________subsystem stores data and programs.

ALU
B. input/output
C. memory
D. control unit

In a computer,the_______subsystem performs calculations and logical operations.

ALU
B. input/output
C. memory
D. control unit

In a computer,the___________subsystem serves as a manager of the other subsystems.

ALU
B. input/output
C. memory
D. control unit

According to the von Neumann model,___________stored in memory.

A. only datais
B. only programs are
C. data and programs are
D. none of the above