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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 ...

What are the 4 features of a database?

What are the 4 features of a database?

The database is a group of information about the subject or object and some 4 features are mentioned in the points following below. Let's have a brief discussion about the database below.

The features of the database file included different types of  uses that provide advantage of the database file on the software systems such as:- the application software, website, operating system etc. The database files are used to implement the application software to process the database using the database programming and process the data which has been stored on the database file.

The database file is used to provide output data when the user want to see the data from the database file such as:- a relational database contains the records of a particular relational database file connected to the application software to provide the data shows on the output interface when the user applied the display command on the database file as a select command from SQL on the relational database file.

The select command is used to show many types of records and the particular record of the user on the output interface or output panel from the relational database model file.

The record triggered by the command is applied through the key attribute that connects the unique identifier value of the key attribute in the record data on the relational database model on the application on the computer system or the smartphone device.


Introduction to the topic of computer related and the topic is related to the computer application and database technology is following below here:


What are the 4 features of a database?


Let's discuss the topic related to computer application and database technology and the topic is "What are the 4 features of a database?" explanation following below here:


What are the 4 features of a database?

There are some points on the computer system and the database technology related to the topic of "What are the 4 features of a database?" following below here:


What are the 4 features of a database? #computersachievers

  • The database provides the data which has been stored in the file 
  • The database is processed from program
  • The database file can be manipulate, define and control through database programming
  • Security model process the data for verification through database file


Let's discuss the points above about the computer system and the database technology related to the topic of "What are the 4 features of a database?" explanation following below here:


The database provides the data which has been stored in the file

The database provides the data which has been stored in the file that means the database is used for process operation such as:- insert new record on the relational database file to provide the data into the relational database file on the record and their attributes. The records are connected to the attributes that store the data according to the category of the attribute with mentioned their name of attribute.

The database file is used to provide the stored data on the record when the user gives a command on the database file or in the application software program to perform an operation of the same command when the user clicks a button on the application form.

The database query language provides the data after processing the command on the database file to provide the output data to the output interface on the application software or software systems. The database file stores the data and retrieve the data from the database file through the query operations applies on the database file such as:- select command is used to provide the display data on the output interface when the user gives instructions to perform that query operation through button which has programmed on the application software to perform that query and display the data on the output interface of the application software or software systems.


The database is processed from program

The database is processed from the program that means the program of the database file to process data through the applied command on the database file.

The database file data process from the program when the website has a program and it is used to perform a database command on the database file then the program can perform an operation of the database on the database file through indirectly on the program of the application of the website to perform according to the program.

The database is processed from the program when the user takes an event on the design interface of the website and it will perform when an operation of the database command on the website interface of the particular option service form.

The database file can be processed from the program of the query language and apply some operations on the database file such as:- select, update, delete etc. These are the manipulation commands that are used to apply on the relational database model file to provide the management of data in the database file on the application software or any software systems.


The database file can be manipulate, define and control through database programming

The database file can be manipulate, define and control means the database file can be performed when the manipulation command is used to perform on the database file in the form of delete the data from record, insert new data in the record, update the data from record etc. these are the manipulation commands on the database file of relational model.

Similarly, the control data commands are performed to control for verification of the record’s attributes such as:- username and password on the security system on the software systems or application software on the computer system.

The data definition language to perform a create file of the relational database file to provide the new blank file on the memory device of the computer system.

The SQL command executes to create a file when the user wants to generate the file on the memory device to store new records and attributes values.

The manipulation command processes the data using the command that manages the data on the database file to provide the management system of the database file and reduces the extra loads of the application software processing system to the database. The data control language is used to control data from the record on the relational database files for using data control language to verify the data which is entered into the security model of application software or any software systems.


Security model process the data for verification through database file

The security model is very important for any type of the software software system such as:- the application software uses the security model in the requirements of users are username and password which is a very common type of verification on the software system such as website and application software. But the other high level of security verification system is used to provide the more verification requirements are secret code and question answer for verification which the user gives the setup of security question and their answer during the verification system on the security interface of any type of software system on the computer system for the user when the user access their account mostly on the software systems.

The security database file is used to process through the database programming to provide the output response from the security model including the verification system then allow access to the account according to the program to process the data and control the data from the relational database model used in the security database file on the computer system.

The privilege also used the high level of security system to provide the verification on the system on the service on the computer system. The higher level of security system included the object database model to process and provide the object verification on the computer system.

The higher level of security model included the object based file verification system such as:- finger print output data verification from the particular system.

The higher level of security included the finger pattern data that can be verified from the specific input resource to provide the data to the user. Other types of verification such as:- username and password used in the verification system on the computer.

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