
Chapter 1. The new mainframe 17
to perform client relationship management, budget planning, and stock
control.
4. All requests are directed to the mainframe computer for processing, and a
returned response.
5. Programs running on the mainframe computer perform updates and inquires
to the database management system (for example, DB2).
6. Specialized disk storage systems store the database files.
1.7 Summary
Today, mainframe computers play a central role in the daily operations of most of
the world’s largest corporations. While other forms of computing are used in
business in various capacities, the mainframe occupies a vital place in today’s
e-business ...