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1. 1. http://www.webopedia.com/TERM/A/application.html
An application is a program, or group of programs, that is designed for the end user. Application
software can be divided into two general classes: systems software and applications software.
Applications software (also called end-user programs) include such things as database programs, word
processors, Web browsers and spreadsheets.
Figuratively speaking, applications software sits on top of systems software because it is unable to run
without the operating system and system utilities.
Illustration 1: Application
Software

2. 2.http://www.pcmag.com/encyclopedia/term/40883/database-program
Definition of:database program
Software that is used to manage data and information structured as fields, records and files. A
database program is the heart of a business information system and provides file creation, data
entry, update, query and reporting functions. The traditional term for database software is
"database management system" (see DBMS). For more about database structures, see DBMS, field,
record, file, database and database schema.
User Interaction with a Database
Database programs let users create and edit single files interactively at the keyboard. However, as
soon as they want data in one file to automatically update another, programming has to be done.
That is where the faint of heart take their leave, and the techies take over. Following are the
common interactive tasks.
Create a File (Table) and Set Index Order
Each field in a record is defined by name, type and length. In order to keep the file, also called a
"table," in sequence, one or more fields are defined as key fields, upon which indexes are created
and maintained. The index is updated whenever records are added or deleted or any data in a key
field changes.
Create Data Entry Forms
Data entry is accomplished by designing a form to display each record. Data entry forms contain
field validation, which determines what data can go in and what cannot.
Update/Edit
In a single-user, one-file-at-a-time application, there is nothing to predefine here. Changing data is
a matter of opening the file and selecting the EDIT mode. However, in a multiuser system, security
must be administered and audit trails must be programmed.

3. View/Query
Browse an entire file or select records. Selected records are usually created as a temporary file that
can be sorted into a different sequence and, after viewing, can be deleted or saved for later use.
The ease with which a query can be composed determines how often users ask their own questions
versus relying on IT staff. For example, retrieving data from two files, such as customers and orders,
or vendors and purchases, requires knowledge of how to link the files for the query. Most database
programs have a JOIN function, which creates a new file with data from two existing files. Once a
query has been composed, it can be saved for use again.
Reporting
Reports provide details and summaries in a more elaborate fashion than queries. Reports have
page and column headers and can be sorted into order by multiple fields; for example, city within
county within state. Once a report description has been composed, it can be saved for use again.
Modify Structure
From time to time, it is necessary to add or delete fields, or change their lengths or possibly their
names. This function is similar to creating the record structure in the first place, except that only
modifications are made.

4. Illustration 2:Database Program

6. 3. http://en.wikipedia.org/wiki/Web_browser
A web browser (commonly referred to as a browser) is a software application for retrieving, presenting
and traversing information resources on the World Wide Web. An information resource is identified by a
Uniform Resource Identifier (URI/URL) and may be a web page, image, video or other piece of content.
[1] Hyperlinks present in resources enable users easily to navigate their browsers to related resources.
Although browsers are primarily intended to use the World Wide Web, they can also be used to access
information provided by web servers in private networks or files in file systems.
The major web browsers are Firefox, Internet Explorer, Google Chrome, Opera, and Safari.[2][3][4]
Illustration 3: Web
Browser

7. 3. http://en.wikipedia.org/wiki/Web_browser
A web browser (commonly referred to as a browser) is a software application for retrieving, presenting
and traversing information resources on the World Wide Web. An information resource is identified by a
Uniform Resource Identifier (URI/URL) and may be a web page, image, video or other piece of content.
[1] Hyperlinks present in resources enable users easily to navigate their browsers to related resources.
Although browsers are primarily intended to use the World Wide Web, they can also be used to access
information provided by web servers in private networks or files in file systems.
The major web browsers are Firefox, Internet Explorer, Google Chrome, Opera, and Safari.[2][3][4]
Illustration 3: Web
Browser