Background Instructions must be loaded into memory before execution. Solutions in chapter 8: Program entire Physical memory Sometimes,jobs may be too big or too many. How to expand the main memory? Physically?COST TOO HIGH! =Logically?√ 4口”4814在，4色，主)QC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Background ▶ Instructions must be loaded into memory before execution. ▶ Solutions in chapter 8: Program entire −−−−−→Physical memory ▶ Sometimes, jobs may be too big or too many. How to expand the main memory? ▶ Physically? COST TOO HIGH! ▶ Logically? √