Two important components of the system unit are the keyboard and the hard disk.
查看答案
A system unit consists of the keyboard and the monitor.
A. 对
B. 错
RAM will retain data when the computer is turned off.
A. 对
B. 错
The most common input devices are the mouse and the keyboard.
A. 对
B. 错
Secondary storage will retain data when the computer is turned off.
A. 对
B. 错
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