Fig.I Conceptual view of a computer system 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 1505Fig. 1 Conceptual view of a computer system The central processing unit (CPU) is located on chips inside the system unit. The CPLJ 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一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 communtcattan 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. Acomputer system can roughly he divided into three components except_ __ . A. hardware I3. 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 13. normal C. general D. abnormal 1505