单项选择题

案例分析题

Whenever new information is entered, it must be stored somewhere in the computer’s （） . RAM only （） the data temporarily. That is, all information stored in the RAM will disappear if you switch the computer off.

RAM only （） the data temporarily.

A．takes
B．executes
C．erases
D．holds

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单项选择题
It had included the handling of purchase （） and funds transfers over computer networks from its inception.

A．jobs
B．transactions
C．programs
D．files
单项选择题
It is called （） equipment as well as the keyboard, the mouse and the printer.

A．input
B．output
C．peripheral
D．electronic
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