1. (2 points) Compare the processors’ access to printers and others I/O devices for the master/slave and the symmetric multiprocessing configurations. Give a real-life example where the master/slave configuration might be preferred. 2. (2 points) Describe the programmer’s role when implementing implicit parallelism.

3. (2 points) Give an example from real life of busy waiting

4. (2 points) Describe the purpose of a buffer and give an example from your own experience where its use clearly benefits system response.

5. (2 points) Compare and contrast the critical region and working set.

1. The master/slave multiprocessing configuration the slave processors access the main memory directly but the master processor speak to the printer and other I/O , whereas the symmetric configuration use homogeneous processors which all communicate with the main memory and the printer and other I/O devices in a synchronized manner

2. Implicit parallelism is the automatic detection by the compiler of instructions that can be performed in parallel is called. Creating knowing when to implement the algorithm for the complier is the role of the programmer

3. Busy waiting: a method by which processes, waiting for an event to occur, continuously test to see if the condition has changed and remain in unproductive, resource consuming wait loops.

Real life example would be cars waiting at a stop light waiting for light to turn green.

4. A buffer is an interim storage area that works as a temporary holding place before being used by the computer. Example while steaming music videos on You tube the system first gathers a certain amount of data in its buffer before allowing the video to be played.

5. Working set is a collection of processers which are to be performed without any high level structured