Components if the fast device finds the data it needs

This preview shows page 2 - 3 out of 3 pages.

components. If the fast device finds the data it needs in the cache, it needs not wait for the slower device. The data in the cache must be kept consistent with the data in the components. If a component has a data value change, and the datum is also in the cache, the cache must also be updated. This is especially a problem on multiprocessor systems where more than one process may be accessing a datum.
A component may be eliminated by an equal-sized cache, if the cache and the component have equivalent state. And the cache is affordable, because faster storage tends to be more expensive. 6. What is the purpose of system calls?
7. What are the three major activities of an operating system with regard to memory management?
8. What system calls have to be executed by a command interpreter or shell in order to start a new process?

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture