The central processing unit (CPU)is located on chips inside the system unit.The CPU is the brain of the computer.This is the place where the computer interprets and processes information. The operating system is the first component of the systems programs that interests us here.Systems programs are programs written for direct execution on computer hardware in order to make the power of the computer fully and efficiently accessible to applications programmers and other computer users. An application software (also called end-user program)is any program designed to perform a specific function directly for the user or,in some cases,for another application program. Examples of application software include word processors;database programs;Web browsers;development tools;drawing,paint,and image editing programs;and communication programs. (三)choose the best answer according to the passage B.(根据上文的内容选择正确的答 案。10分，每题2分)】 1.A computer system can roughly be divided into three components except A.hardware B.System software C.Application software D.CPU 2.The central processing unit (CPU)is an important part of the computer,and it can interpret and information. A.process B.use C.brain D.heart 3.The operating system is one of A.hardware B.system software C.application software D.computer 4.An application software is any program designed to perform a function directly for the user or,in some cases,for another application program. A.specific B.normal C.general D.abnormal 5.Which of the following is not an application software A.word processor B.database program C.Web browser D.compiler 1422The central processing unit (CPU) is located on chips inside the system unit. The CPU is the brain of the computer. This is the place where the computer interprets and processes information. The operating system is the first component of the systems programs that interests us here. Systems programs are programs written for direct execution on computer hardware in order to make the power of the computer fully and efficiently accessible to applications programmers and other computer users. An application software (also called end-user program) is any program designed to perform a specific function directly for the user or, in some cases, for another application program. Examples of application software include word processors; database programs; Web browsers; development tools; drawing, paint, and image editing programs; and communication programs. (三}choose the best answer according to the passage B,(根据上文的内容选择正确的答 案。10分 ，每题 2分) 1. A computer system can roughly be divided into three components except_ . A. hardware B. System software C. Application software D. CPU 2. The central processing unit (CPU) is an important part of the computer, and it can interpret and_ information. A. process B. use C. brain D. heart 3. The operating system is one of_ . A. hardware B. system software C. application software D. computer 4. An application software is any program designed to perform a function directly for the user or, in some cases, for another application program. A. specific B. normal C. general D. abnormal 5. Which of the following is not an application software_ . A. word processor B. database program C. Web browser D. compiler 1422