答案书写格式提示: 1-5 XXXXX 6-10 XXXXX 1. A computer system consists of two main elements: _______. A. input devices, output devices B. hardware, software C. CPU, memory D. RAM ROM 2. 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 3. 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 4. The most useful pointing device is a _______, which allows the user to point to elements on the Screen. A. digital camera B. mouse C. PC camera D. keyboard 5. The characteristic of the LCD is _______. A. taking up a lot of space B. taking up little space C. displaying text and images with greater unclarity D. A and C 6. _______is the control and data processing center of the whole computer system. A. Memory B. Motherboard C. CPU D. Bus 7. When the computer is turned off. any information in _______will be lost. A. RAM B. ROM C. storage D. memory 8. _______is the most popular Bus to be used on a motherboard. A. Address Bus B. Data Bus C. Control Bus D. PCI Bus 9. Two main components on the motherboard are _______, A. memory and circuit boards B. CPU and memory C. arithmetic unit and control unit D. ROM and RAM 10. _______ does not belong to the output devices. A. facsimile machine B. headset C. speaker D. microphone