Many large and medium scale organizations have implemented Time and Attendance system based on various Identity Card types. These systems were communicating to their respective computers through separate cable laid for this purpose. The details collected by this PC, was used for updating database servers for Salary and other admin purposes. Now, this has become a standard requirement that the readers need LAN connectivity as the entire campus or building is LAN enabled. The card readers can be connected to the LAN by using the EAD. This provides online updation of the data on the server.

In addition to providing online and instantaneous verification and validation, the data can be made available on the server on real time basis. This helps the company to have updated information about the employees who are currently in factory and reported to work. This also helps to plan casual workers to be deployed on a particular day.

The above illustration shows an attendance monitoring system. The output of the card readers are updating the server on real time. So the server always will have the information on the current attendance.

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