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Li-Fi vs Wi-Fi: A Battle of Light and Waves

Li-Fi vs Wi-Fi: A Battle of Light and Waves Li-fi is a light fidelity device that supports only the infrared and other lighting systems to transfer the data to the device which is used to receive from the sender device. Wifi is a wireless fidelity device that supports the radio waves to transfer the data to the wifi device which is used to receive the wifi signals at the limited ranges due to the device version capacity. Introduction to the computer system and computer applications related topics are listed following below here: Li-Fi vs Wi-Fi: A Battle of Light and Waves Let’s discuss the computer system related topic and questions above listed and their answers are following below here: Li-Fi vs Wi-Fi: A Battle of Light and Waves There are some points on the computer system and data communication related to the topic of “Li-Fi vs Wi-Fi: A Battle of Light and Waves” following below here: Lifi based data communication system:- Li-Fi is a light based signal data transmission ...
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If Mark sheet is the real world object then what are the classes, attributes and their values in according to the object oriented database management system model? – Part3

How to create mark sheet database of student is a real world object in according to the object oriented database management system model? – Part3

Connection between Student mark sheet database, Database of student and mark sheet detail of student

If Mark sheet is the real world object then what are the classes, attributes and their values in according to the object oriented database management system model? – Part3

Student mark sheet database is oriented based object and it is divided into two classes which one is the database of student is connected to the strong line. The database of student is connected to the mark sheet detail of student which is sub class of the Class ‘Database of Student’.

The Mark Sheet detail of student

There are seven fields or attribute of the sub class of ‘mark sheet detail of student’. These fields hold numerical data type data in their value of fields.

English is an attribute that their value is val1. It is a subject of the student.

{English = Numerical data type}

Hindi is an attribute that their value is val2. It is a subject of the student.

{Hindi = Numerical Data type}

Mathematics is an attribute that their value is val3. It is a subject of the student.

{Mathematics = Numerical Data type}

Science is an attribute that their value is val4. It is a subject of the student.

{Science = Numerical Data type}

SST is an attribute that their value is val5. It is a subject of the student.

{SST = Numerical Data type}

Total is an attribute that has function to calculate the values of all subjects.

{Total = Numerical Data type}

If the Total = [val1+val2+val3+…] = sum of the values.

Percent is the attribute that their value is in the float value. Float is the data type which takes also the decimal values. The sign of float is [%] which is also called modulus function.

{Percentage = Float Data type}

If the Percentage = sum of values % Number of all subjects = values in float.


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