#期末复习 ###PPT2：
- 并行计算的意义
- 并行计算是解决计算挑战的必由之路
- ** 并发与并行的区别√**
- 扩展性
-A computer system, including all its hardware and software resources, is called scalable if it can scale up (i.e. improve its resources) to accommodate ever-increasing performance and functionality demand and/or scale down (i.e. decrease its resources) to reduce cost.
- Resource Scalability
- Application Scalability
- Technology Scalability