题目内容

In a computer,the_______subsystem performs calculations and logical operations.

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

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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

（）给出了现代电子计算机的数学模型

A. 乔治·布尔
B. 艾伦·图灵
C. 冯·诺依曼
D. 约翰·阿塔那索夫

世界上第一台计算机是（）年研制成功的

A. 1942
B. 1946
C. 1958
D. 1960