Graduate Thesis Or Dissertation
 

EDLAN, an educational local area network

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  • EDLAN is a simple, inexpensive local area network suitable for educational applications. In EDLAN, a number of personal computers are connected through an RS-485 global bus which carries the data transmission among the computers. CSMA/CD protocol is used to control the access of the global bus. The communications are controlled by 8051 single board computer based Network Interface Units attached to each personal computer. In this network, one computer is used by an instructor and the rest used by students. Class and exam facilities are developed so that the instructor can use the network to teach classes, to distribute class materials, exam or exercise problems. The students can use the network to take classes or exams without physically going to the same classroom. Housekeeping and grading functions are provided to help the instructor to manage the host computer and to manage classes and examinations. Friendly menu driven operation, on-line help facility, and window functions make the system easy to use.
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