Lesson 9 模拟通话小测根据旁白发话Callsign is BAW725-8
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Lesson 9 模拟通话小测 根据旁白发话Callsign is BAW725-9
A computer system consists of two main elements: ( ).
A. input devices, output devices
B. hardware, software
CPU, memory
D. RAM, ROM
The peripherals of the computer can be classified into two groups: ( ).
A. data Bus, cables
B. pointing device, output devices
C. input devices, output devices
D. control Bus, inner Bus
Users can type in text and commands using the ( ), which is one of the most important input devices.
A. mouse
B. scanner
C. microphone
D. keyboard
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