M.Sc.

Abstract: The control systems that use some type of a computer is named computer-based control system. The computer-based system can provide monitoring, intervention control, or direct control of local loop element. It also can provide historical data summaries, data analysis and maintenance scheduling. This thesis introduces one of the control approaches which is ON/OFF control. a closed loop process control system was taken as a case study in this work in which a software program was implemented for monitoring and controlling the hardware suggested design.

Abstract: Since a high-speed demand for data transmission is required, Digital Subscriber Line (DSL) is a technology that provides a very high-speed digital data transmission using the regular telephone lines as the transmission media. The most promising of the xDSL technologies is Asymmetric Digital Subscriber Line (ADSL). ADSL was developed to offer a unique service to transport multi-phone line by combining number of plain old telephone signal (POTS) with a moderateamount of data to the client where this service known as Channelized Voice over DSL (CVoDSL).