(71)Messages that are sent electronically over a network. (72)A series of instructions(commands) performed in a sequence specify

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问题 (71)Messages that are sent electronically over a network.
(72)A series of instructions(commands) performed in a sequence specifying actions to accomplish a task.
(73)The character code built into most modern personal computers.
(74)The minimal unit of information,it can have the value 1 or 0.
(75)The brains of a computer, it contains the ALU,the clock,many registers,the bus interface,and circuitry that makes these parts work together.

选项 A、memory
B、CPU
C、I/O device
D、program

答案B

解析
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