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The telephone is a wonderful invention. Since it was first introduced into the marketplace it has made a world of […]

An Intercom (intercommunication device) is a communication tool that allows two or more people to carry a conversation or communicate […]

Information technology generally refers to all forms of technology used in the creation, storage, exchange and utilization of data, conversation […]

Drainage is the disposal of excess water on land (either used in form of storm water). It must be distinguished […]