| 1.The （ ） has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries. |
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| 2.（ ）：The process of identifying and correcting errors in a program. |
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| 3.( ) drives can erase and store data. |
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| 4.Very long, complex expressions in program are difficult to write correctly and difficult to （ ） . |
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| 5.Single program operating systems allow ( ) user(s) to run ( ) program(s) at one time. |
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| 6.Programs written in all other kinds of languages are translated into ( ) before they are performed. |
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| 7.（ ） is permanently stored in the computer and provides a link between the hardware and other programs that run on the PC. |
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| 8.Computer systems consist of two very different types of elements: Hardware, which includes all the physical things that can be touched and （ ） , which tells the hardware how to do . |
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| 9.The two goals of an operation system are （ ） and efficiency. |
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| 10.（ ） is the foundation on which applications are built. |
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| 11.The term " （ ） program" means a program written in high-level language. |
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| 12.（ ）：A series of instructions(commands) performed in a sequence specifying actions to accomplish a task. |
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| 13.The user must interact with the （ ） in order to accomplish task. |
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| 14.( ) is an operating system that was initially created as a hobby by a young student. |
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| 15.All modern （ ） are multitasking and can support running several processes simultaneously. |
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| 16.The program and the data are kept inside the computer in a place called （ ）. |
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| 17.( ) refers to the parts of the computer that you can see and touch. |
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| 18.A （ ） consists of the symbols,characters, and usage rules that permit people to communicate with computer. |
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| 19.( ) allow more than one program to be run at the same time on the computer. |
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| 20.The ( ) turns the object file into an executable program. |
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