Memory Management (correctly solved questions)

What are the 2 main focuses of main memory management? correct answers Each apps loaded in fixed block sizes? correct answers Ensures apps won't be loaded process has enough memory to function and won't run into the space of another process or be run into; Different types of memory in the system must be used properly so processes can run properly Why are overlapping each other. How can RAM have more space available if there are apps requiring the remaining space available? correct answers Apps contain processes that uses one memory location at a time. Also a process doesn't take up memory until it becomes active. So if half of the processes in the apps are inactive then there will still be space left. What is virtual memory management? Why is it important? correct answers The movement of information from RAM to hard disk to increase available memory in RAM when it becomes low; This technique prevents the OS from crashing due to the memory demand being more than the space available. What manages disk storage? correct answers The OS What is the fastest type of memory in an OS? What is the slowest? correct answers High-speed cache; secondary memory What is the job of the cache controller? correct answers Speed up system performance by predicting what pieces of data the CPU will need next, pull it from main memory, and bring it to the high-speed cache Which type of memory in the RAM is measured for computer buyers? correct answers Main memory What is secondary memory? correct answers A physical magnetic storage disk that keeps apps and data available for use and serves as a virtual RAM What controls secondary memory? correct answers The OS What is paging? correct answers The movement of data between the RAM and the hard disk What are the 4 memory allocation schemes? correct answers Single user systems, fixed partitions, dynamic partitions, relocatable dynamic partitions True/False; the entire program of a singl correct answers How does a single user system work? correct answers Loads entire program into memory, allocates contiguous memory, processes jobs