1) A computer is described as having a processor which has a 3.0GHz quad-core CPU with 1Mb of cache memory
a) What is cache memory and why is it useful?
b) What advantage does a quad-core processor have over a dual-core processor?
2) Julie’s computer is used for lots of different programs. Sometimes she notices that when she is running many of them at the same time her computer slows down a lot. When she adds an extra Gb of main memory the problem disappears. What is happening here?