MockTest3.docx

Race condition

A situation where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which access takes place

Critical section

The segment of code in which the process may change common variables, update tables, write into files

Mutual Exclusion

If a process is executing in its critical section, then no other process must be executing in their critical sections

Bounded Waiting

There exists a bound on the number of times a process is allowed to enter its critical section

Semaphore

Integer variable to solve the critical section problem

Mutex & counting

The two kinds of semaphores are Mutex & counting

Deadlock

A problem encountered in multitasking when a process is perpetually denied necessary resources

Address Binding

A mapping from one address space to another

Dynamic loading

Loading a routine only when it is called

Roll out, roll in

If a higher priority process arrives and wants service, the memory manager can swap out the lower priority process to execute the higher priority process. When the higher priority process finishes, the lower priority process is swapped back in and continues execution. This variant of swapping is sometimes called "Roll out, roll in"