论文部分内容阅读
计算机系统设计师必须全面考虑价格、功能及性能这三个问题。一般来说,价格随着性能非线性地提高,但价格随着功能增加而线性增长。计算机设计师必须了解能将计算机提高到什么水平。例如,在基于UNIX的系统中,设计师可以控制硬件和软件的配置,并能在任何层次变动。但是在Windows的BIOS环境中,系统的某些部分,尤其是CPU/存储器子系统,在体系结构方面一般不能轻易更改。由于系统的体系结构要提前1～3年
Computer system designers must fully consider the price, function and performance of these three issues. In general, prices increase non-linearly with performance, but prices increase linearly with increasing functionality. Computer designers must understand what it takes to get a computer up to speed. For example, in UNIX-based systems, designers can control hardware and software configuration and can change at any level. However, in the BIOS environment of Windows, some parts of the system, especially the CPU / memory subsystem, can not be easily changed in architecture. As the system architecture to advance 1 to 3 years