| 1.Every programming language has the same set of grammer rules. | |
| | 2.Operating systems are used to manage computer resources. | |
| | 3.Assembler-level languages uses mnemonics to represent instructions. | |
| | 4.Many operating systems have similar characteristics. | |
| | 5.Once the operating system accepts a user's job, it may create one process. | |
| | 6.The life cycle of a process can be represented by transitions between submit, hold, run, wait and complete. | |
| | 7.It is a major problem for the operating system to map the logical file concept onto physical storage devices such as magnetic tape or disk . | |
| | 8.One of the functions of an operating system is memory management. | |
| | 9.The code generator takes the source code it receives the optimizaer and produces assembly or machine language code. | |
| | 10.Multiprogramming is a term given to a system that may have several processes in "states of execution" at the same time. | |
| | 11."Interrupt hardware" allows the operating system to coordinate operations going on simultaneously; it also allows the sequential flow of a program. | |
| 1.The ( ) turns the object file into an executable program. | |
| | 2.Insufficient （ ） can cause a processor to work at 50% or even more below its performance potential. | |
| | 3.Single program operating systems allow ( ) user(s) to run ( ) program(s) at one time. | |
| | 4.（ ）：An error can be caused by attempting to divide by 0. | |
| | 5.The user must interact with the （ ） in order to accomplish task. | |
| | 6.Every valid character in a computer that uses even （ ） must always have an even number or 1 bits. | |
| | 7.All modern （ ） are multitasking and can support running several processes simultaneously. | |
| | 8.A （ ） consists of the symbols,characters, and usage rules that permit people to communicate with computer. | |
| | 9.As an operating system repeatedly allocates and frees storage space , many physically separated unused areas appear. This phenomenon is called （ ） . | |
| | 10.（ ） is permanently stored in the computer and provides a link between the hardware and other programs that run on the PC. | |
| | 11.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 . | |
| | 12.Very long, complex expressions in program are difficult to write correctly and difficult to （ ） . | |
| | 13.( ) is a fast and powerful operating system, based on the UNIX O.S. | |
| | 14.To document your code can increse program （ ） and make program easier to maintain . | |
| | 15.The（ ）is a collection of modules serving as interface between hardware and software to provide a software platform. | |
| | 16.( ) is not the basic hardware component of computers. | |
| | 17.The two goals of an operation system are （ ） and efficiency. | |
| | 18.When saving a document you must decide on a name for the document and the （ ） where it will be saved to. | |
| | 19.（ ） is the foundation on which applications are built. | |
| | 20.（ ）：The process of identifying and correcting errors in a program. | |
| 1.There are three stages of error processing:( ). | |
| | 2.The end equipment in a communication system includes ( ). | |
| | 3.The function of computer hardware is typically divided into three main categories.They are ( ). | |
| | 4.Viewing the operating system as a resource manager, each manager must do the following:( ). | |
| | 5.The scanner has several roles:( ). | |
| | 6.A job may be divided into three steps: ( ). | |
| | 7.We divided parser into two classes:( ). | |
| | 8.Optimization techniques which are performed at the object program level are applicable to machine language. The main methods used are:( ). | |
| | 9.The most existing compilers involve several major components. They are scanner, optimize,( ). | |
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