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what is data cable? Types of cables, uses of data cables, importance of data cable explained!

Introduction of data cables Data cable is an important part of computer network model . From smartphone to supercomputer connections and wide range network uses and network models. It helps in network model in different types of topology models also. But we discuss what exactly called a data cable? How it is working with network model? Why these data cables are so important? In this guide, I will provide some information about the definitions, types, uses of data cables on network model with easy explanation of data cable covered topics. What is data cable? [Definition] A data cable is a wire that can transfer the data from one to another computer system. It connects to the ports available on the computer system. The user can transfer the data from one computer to another data cable connection. If two computers are connected then:- In according to data cable male port:- Port 1:- the male port of data cable is used to receive the data from the sender computer. Port 2:- th...
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what do you understand by the generalization in DBMS?

What is generalization in Database management system technology?

About the Generalization basic points

  • The generalization is term in a database model works in lower level entities sets.
  • It gives the similarities of the lower level entities sets and among their sets.
  • It hides or do not shows the differences of the lower level entity sets.
  • It allows or gives permission to represents the economy system.
  • It emphasize the shared attributes are not repeated in the lower level entity sets.
  • Sometime lower level entity produces higher level entity sets in terms of taking union of several in the generalization in DBMS.

Typical model of the Generalization in the school based model

What is generalization in Database management system technology?

In the generalization model of school, the school is the entity but in a higher level entity which is called super class.

Student is the main object of the school which is a common entity.

The triangle component is a generalization component or tool to represent the similarities of the higher and lower level entity sets where in the model the “Class of 12th” is represent the generalization of the class categories with the similarities which is “student”. Section “A” and Section “B” are the lower level entity sets and the students are also divided in the two sections of the same class.

You can see the possibilities of the class and their section such as same subjects of the both sections.

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