
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Transcribed Image Text:**Understanding Computer Files and File Extensions**
**Question:**
What is a computer file? What does it mean by file format? What is the file extension used for? Given the following files, what does each file extension mean?
**File Examples:**
a) Game1.exe
b) Accounting.hlp
c) Resume.doc
d) Mypage.html
**Explanation:**
- **Computer File:** A computer file is a digital document or data stored on a computer. It can contain various types of information, such as text, images, audio, and more. Files are an essential part of computer systems as they enable data storage and retrieval.
- **File Format:** The file format refers to the structure and type of data that a file contains. Different formats are used for different types of data, such as text documents, images, or executable programs.
- **File Extension:** A file extension is a suffix at the end of a file name, indicating its file format. It helps the operating system to understand which application should open the file.
**File Extensions:**
- **.exe:** This is an executable file format used primarily for programs to run on Windows operating systems.
- **.hlp:** This extension is associated with help files, typically used to provide user guidance for software applications.
- **.doc:** A document file format used by Microsoft Word. It is primarily used for text-based documents.
- **.html:** This is a web page file format written in Hypertext Markup Language and used to create web pages viewable in web browsers.
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