The purpose of an expert system is to capture best practice solutions and program them into a set of rules in a software program. Expert systems are computers that use artificial intelligence technologies to simulate a behavior of a human or another subject.
The knowledge about a specific subject is transformed with this system into a software code.
Answer:
Gottfried Leibniz created it and Leibniz was trying to find a system that converts logic's verbal statements into a pure mathematical one.
Answer:
Open a file when the program needs to work with it and close the file as soon as you have finished using it.
Explanation:
In programming, we have some files that are stored in memory, or created in some other section of the program to save information.
<u><em>for example</em></u>, we want to save the data of a class or school faculty to create a database. For this purpose I need to create a file.
As the files that we will create may contains data, these files will utilize computer resources such as, memory (RAM, Cache) and other resources. While programming, we need these resources as well.
<em>Therefore, It is necessary to open a file when the program needs to work with it and close the file as soon as we have finished using it. The reason is that, it takes computer resources which are limited. </em>
Answer:
Class is the correct answer for the above question.
Explanation:
In an object-oriented language, The class is a structure type template, which is used to define the structure but the class does not take memory when an object is created then it takes the memory of class type. For example, if a user-defined class of one member whose size is 4 bit if its store in memory. When a user creates an object, then the object size is 4 bit.
That's why the class is an only structure while an object is used to give the memory for class member and the member of the class also get executed by the object of that class. class have no existence if object is not created. so when a user wants to create a object, he needs to create the object by the help of class name because class is user defined data type and object is variable of that class.
Then the answer of the above question is that object is created with the help of class which is described above.
