1. Client/Server Model: A Business View The different Client/server implementations differ according to: 1.Where the processing for the presentation of information occurs 2.Where the processing of logic or business rules occurs 3.Where the data management component (DBMS) and information (database) are located

2. Application can be structured to match organizational requirements since it is both flexible and scalable – Can change the implementation of this model as the organization changes in size since the Client/Server model provides the flexibility to mold information systems to whatever business model is most appropriate for an organization. Data access is transparent to the user regardless of where the data is stored. Separate programs are more easily maintained and can be reused. One central location to go to for all of the sharing and easier to control the entire network. Client/Server Advantages

3. You might not have the following 2 slides. These are slides that I have placed at the end of my file and these will be the last networking slides covered.

4. Researchers explore scrapping and rebuilding the Internet In order to address the problems that were not envisioned when the Internet was initially created, some are suggesting rebuilding the Internet using a approach. S – The Internet was designed to be open and flexible and all users were assumed to be trustworthy. Internet protocols were not designed to authenticate users and their data. Firewalls and spam filters are now being used to control security. – Solution: data not passed along until

5. Mobility – Initially, computers were fixed in location so IP addresses were assigned to devices in a fixed location. Wireless mobile computing is presenting challenges related to data flow. – Solution: R so that addresses are based on the device, rather than the location. Ubiquity (called in our class notes) – When the Internet was first designed, there were relatively few computers connected to it. The addressing system has become strained due to the proliferation of personal computers and mobile devices. – Solution: assign and have those same devices connected to an addressed gateway, which is then connected to routers and the rest of the Internet Result is fewer devices to keep track of and improved efficiency. These changes may happen over the next 10-15 years. They (expected to cost as computer hardware and software and Internet infrastructure are replaced)