Access control system topologies. 1  Work load on the host PC is significantly reduced, because it only needs to communicate with a few main controllers. 2  The overall cost of the system is lower, as sub-controllers are usually simple and inexpensive devices. 3  All other advantages listed in the first paragraph apply.
This excerpt taken from the CVX 10-K filed Mar 9, 2004. Texaco Merger Transaction. On October 9, 2001, Texaco Inc. (Texaco) became a wholly owned subsidiary of Chevron Corporation (Chevron) pursuant to a merger transaction, and Chevron changed its name to ChevronTexaco Corporation.
It is a direct descendant of John D. Rockefeller's Standard Oil company, and was formed on November 30, 1999, by the merger of Exxon and Mobil. Its headquarters are in Irving, Texas.