Carolyn would like to store and retrieve data about products in her catalogue. she should use a a. database b. word processor c. spreadsheet d. invoice

a. database

Explanation:

a. database

DBMS or database is a software application which is especially made for data storing and retrieving. Examples include SQL Server, Microsoft Access, Oracle etc.

6.The data is stored in the form of tables. Tables are divided into columns. One set of data is stored in a row.

7.These tables are related to one or more other tables. All the related tables form the database.

8.A database can store data, manage data and enable data retrieval. These tasks are performed through data manipulation operations in SQL.

9.DML or data manipulation language identifies three basic operations of select, update and insert. These commands are used to display, modify and insert rows in the tables in the database.

10.Data can be retrieved in a meaningful way through the use of queries. Questions of the end user can be written in the form of a query.

11.Queries are written in a language called SQL or structured query language.

12.Along with the above-mentioned, database can also have data entry forms, can perform validation of data being inserted, prevent invalid data from being entered.

13.Thus, only valid and useful data is present in the database.

b. word processor

1.This is used to develop word documents, reports and other type of written materials.

2.The data can be stored in word document but data retrieval is difficult.

3.Examples include Microsoft Word.

c. spreadsheet

1.This is used to store numerical data in an organized format.

2.This is mainly used for accounting purpose.

3.The data can be stored easily in a spreadsheet.

4.Data retrieval as per the requirements is not an easy task with a spreadsheet.

5.Examples include Microsoft Excel.

d. invoice

1.This is a receipt which shows the details of a purchase made by the customer.

2.The products or services bought or utilized are mentioned with its price and the total amount.

3.This does not store data nor can retrieve data.

4.This only represents the fact that bill is paid by the customer for the products or services.

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