Internet services The Internet can be used in in different ways: for distributing and retrieving information, for one-to-one, one-to-many and many-to-many communication, and for the access services. Accordingly, there are different services on offer. The most important of these are listed below. |
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Copyright Management and Control Systems: Pre-Infringement Pre-infringement Contracts Contracts are a pre-infringement control method, which very often is underestimated. Properly formed contracts enable copyright holders to restrict the use of their works in excess of the rights granted under copyright laws. Copy Protection This approach was standard in the 1980s, but rejected by consumers and relatively easy to break. Still copy protection, whereby the vendor limits the number of times a file can be copied, is used in certain situations. Limited Functionality This method allows copyright owners to provide a copy of the work, which is functionally limited. Software creators, for example, can distribute software that cannot print or save. A fully functional version has to be bought from the vendor. Date Bombs Here the intellectual property holder distributes a fully functional copy but locks off access at a pre-specified date or after a certain number of uses. |
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Exxon Formerly (until 1972) Standard Oil Company, Exxon is one of the world's largest corporations in terms of sales, with investments and operations in petroleum and natural gas, coal, nuclear fuels, chemicals, and such ores as copper, lead, and zinc. It also operates pipelines and one of the world's largest fleets of tankers and other ships. Exxon engages in every phase of the petroleum industry from oil fields to service stations. It is headquartered in Irving, Texas, a suburb of Dallas. |
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