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What do you understand by the documentation type of application software on the computer system?

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What do you understand by the documentation type of application software on the computer system? Document file application included the text data options to edit the text data in the pages on the application to make a change into the entered text data. The user can type text data using the keyboard input device because the keyboard input device is used to send the data into the document file application software and it allows the keyboard input device to take input data and some mouse input device to make an editing work on the document file application software. Document application provides the text data file to the user when the user gives a command to generate the new file then the file will be generated from the application software. The user can use the file when the user wants to edit on the file through the application software to apply some editing operations such as:- the text data can be edited from the editing options available on the application software to perform in form
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how do you understand the right access of structure in relational database management system model

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What do you mean the right accessing of structure in relational database management system [RDMS]?

About the data structure of the relational database

The storage structure of the database is type of matrix form. It makes a combination in the form of x and y axis like coordination intersection structure such as column and row insects at the point, the point position is stores a single data enter in the cell. The intersection of the column and rows are also known as cells.

What do you mean by the cell in the relation?

The cell is a single data storage box. You can enter the single data only. If you enter the s double type data it makes meaningless information. It makes illogical information in the relation. So it is most important part the cell stores only a single data.

The cell have an address to find easily such as the column have name is “a” and the row have a number is “1” then the cell makes a combination of “a1” this combination is called address in the relation model.

About the column and rows with their names

The columns have their own names such as first column name is “A”. The column A is denoted as a particular column. It known as reference name of the columns line or you can also say address name line of a column. Similarly, according to the rows have a particular serial number denoted as unique identity or a primary key attribute in the relational model.

You can change the row of serial number as a primary key and in the column you can address name line as the records properties as attribute.

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