1. When people describe client-server architecture, they are usually referring to a system in which a large server is serving a client on a PC. With X Window, the reverse is frequently the case. Explain

2. Using the ADD instruction as a model, show the fetch-execute cycle for a SUBTRACT instruction.

3. Windows hides most of its configuration in a binary file called the registry. Special Windows tools must be used to read and modify the registry. What are the advantages and disadvantages of this approach versus the use of text-based configuration files?