A computer system is a collection of hardware and software components designed to provide an effective tool for computation. Computer system are used in every walk of life to assist us in the various tasks we perform. The wide availability of the internet has enhance the use of computer for information sharing and communication. Computer system allows us to store, process, display and communicate information. In any modern computer system even a simple one, in general needs several different programs in order to accomplish its various functions.

Thursday, October 14, 2021

Expert system

Expert systems are one of the most exciting applications of computers to emerge in the last decade. Expert systems are systems which are capable of offering solutions to specific problems in a given domain or which are able to give advice, both in a way and at a level comparable to that of experts in the field.

Expert systems are used to solve specific domain problems and each step of reasoning for a specific problem is determined by the human expert professionally. They allow a computer program to use expertise to assist in a variety of problems, such as diagnosing equipment failures and designing new equipment.

They have built on many years of work in artificial intelligence (Al) on problem solving, and have become a commercially successful demonstration of the power of Al.

After expert systems have moved out of research laboratories during early 1980s, they became more popular and found several application fields such as engineering, chemistry, medicine, industry, and many others.

The knowledge of an expert system consists of facts and heuristics. The "facts" constitute a body of information that is widely shared, publicly available, and generally agreed upon by experts in a field. The "heuristics" are mostly private, little-discussed rules of good judgment (rules of plausible reasoning, rules of good guessing) that characterize expert-level decision making in the field.
Expert system

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