题目内容

12. Which of the following is accessible directly to the CPU?

A. hard disc
B. optical disc
C. memory
D. none of the above

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11. Which of the following is most fast?

A. RAM
B. hard disc
C. optical disc
D. USB flash drive

Fill in the blanks with the words or phrases chosen from the following words. Change the forms where necessary.general arbitrary program digit vary binary tangible switch physics discrete analog instruct 1. Modern computers are also called ______ computers, which use the ______ number system with two digits: 0 and 1.2.Hardware and software are the two components of a computer. Hardware is the collection of______ components which are tangible. By contrast, software is ______ .3. The process of a computer to perform a task is the process of executing ______ .4. Xi Jinping is the ______ secretary of the Communist Party of China.5. An electronic ______ can be turned off or on to represent a binary digit, 0 or 1.6. This computer is just constituted with many parts of hardware but without any ______ . So it doesn’t work.

Which of the following is the most important software?()

A. operating system
B. game engines
C. firmware
D. software as a service

Which of the following does not requires an operating system to function?()

A. game engine
B. industrial automation
C. firmware
D. all of the above

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