File Extension and Beep Codes

A file extension is suffix of a file name, after the dot. Basically file extensions are three characters long, but they can be shorter or longer as well.

FileName.extention

File extensions list

Audio file formats by file extensions

.aif – AIF audio file
.cda – CD audio track file
.mid or .midi – MIDI audio file.
.mp3 – MP3 audio file
.mpa – MPEG-2 audio file
.ogg – Ogg Vorbis audio file
.wav – WAV file
.wma – WMA audio file
.wpl – Windows Media Player playlist

Compressed file extensions

.7z – 7-Zip compressed file
.arj – ARJ compressed file
.deb – Debian software package file
.pkg – Package file
.rar – RAR file
.rpm – Red Hat Package Manager
.tar.gz – Tarball compressed file
.z – Z compressed file
.zip – Zip compressed file

Disc and media file extensions

.bin – Binary disc image
.dmg – macOS X disk image
.iso – ISO disc image
.toast – Toast disc image
.vcd – Virtual CD

Data and database file extensions

.csv – Comma separated value file
.dat – Data file
.db or .dbf – Database fileBeep codes
.log – Log file
.mdb – Microsoft Access database file
.sav – Save file (e.g., game save file)
.sql – SQL database file
.tar – Linux / Unix tarball file archive
.xml – XML file

Executable file extensions

.apk – Android package file
.bat – Batch file
.bin – Binary file
.cgi or .pl – Perl script file
.com – MS-DOS command file
.exe – Executable file
.gadget – Windows gadget
.jar – Java Archive file
.py – Python file
.wsf – Windows Script File

Font file extensions

.fnt – Windows font file
.fon – Generic font file
.otf – Open type font file
.ttf – TrueType font file

JPEG example.Image file formats by file extension

.ai – Adobe Illustrator file
.bmp – Bitmap image
.gif – GIF image
.ico – Icon file
.jpeg or .jpg – JPEG image
.png – PNG image
.ps – PostScript file
.psd – PSD image
.svg – Scalable Vector Graphics file
.tif or .tiff – TIFF image

Internet related file extensions

.asp and .aspx – Active Server Page file
.cer – Internet security certificate
.cfm – ColdFusion Markup file
.cgi or .pl – Perl script file
.css – Cascading Style Sheet file
.htm and .html – HTML file
.js – JavaScript file
.jsp – Java Server Page file
.part – Partially downloaded file
.php – PHP file
.py – Python file
.rss – RSS file
.xhtml – XHTML file

Presentation file formats by file extension

.key – Keynote presentation
.odp – OpenOffice Impress presentation file
.pps – PowerPoint slide show
.ppt – PowerPoint presentation
.pptx – PowerPoint Open XML presentation

Programming files by file extensions

.c – C and C++ source code file
.class – Java class file
.cpp – C++ source code file
.cs – Visual C# source code file
.h – C, C++, and Objective-C header file
.java – Java Source code file
.sh – Bash shell script
.swift – Swift source code file
.vb – Visual Basic file

Spreadsheet file formats by file extension

.ods – OpenOffice Calc spreadsheet file
.xlr – Microsoft Works spreadsheet file
.xls – Microsoft Excel file
.xlsx – Microsoft Excel Open XML spreadsheet file

System related file formats and file extensions

.bak – Backup file
.cab – Windows Cabinet file
.cfg – Configuration file
.cpl – Windows Control panel file
.cur – Windows cursor file
.dll – DLL file
.dmp – Dump file
.drv – Device driver file
.icns – macOS X icon resource file
.ico – Icon file
.ini – Initialization file
.lnk – Windows shortcut file
.msi – Windows installer package
.sys – Windows system file
.tmp – Temporary file

Video file formats by file extension

.3g2 – 3GPP2 multimedia file
.3gp – 3GPP multimedia file
.avi – AVI file
.flv – Adobe Flash file
.h264 – H.264 video file
.m4v – Apple MP4 video file
.mkv – Matroska Multimedia Container
.mov – Apple QuickTime movie file
.mp4 – MPEG4 video file
.mpg or .mpeg – MPEG video file
.rm – RealMedia file
.swf – Shockwave flash file
.vob – DVD Video Object
.wmv – Windows Media Video file

Word processor and text file formats by file extension

.doc and .docx – Microsoft Word file
.odt – OpenOffice Writer document file
.pdf – PDF file
.rtf – Rich Text Format
.tex – A LaTeX document file
.txt – Plain text file
.wks and .wps- Microsoft Works file
.wpd – WordPerfect document

Beep codes

A beep code is a signal generated by computer during the boot process. Most beep codes are related to a power on self test (POST).

Beep codes vary depending on the manufacturer of the BIOS.

Below are some of the common beep codes for an Award BIOS.

Beep Code Meaning

1 long, 2 short
Video adapter error: Bad or improperly seated video card

Repeating beeps
Memory error: Bad or improperly seated RAM

1 long, 3 short
Bad video RAM or video card not present

High-frequency beeps
Overheated CPU: Check fans

Repeating high/low beeps
CPU: Improperly seated or defective CPU

IBM error code

Error Code Family == Error Type

1xx == System board errors
2xx == Memory (RAM) errors
3xx == Keyboard errors
4xx == Monochrome monitor errors
5xx == Color monitor errors
6xx == Game control adapter errors
7xx == 8087 or 80287 math coprocessor errors
9xx == Parallel printer adapter errors
10xx == Reserved for parallel printer adapter
11xx == Asynchronous communications adapter errors
12xx == Alternate asynchronous communications adapter errors
13xx == Parallel printer adapter errors

Dell beep codes

If the display cannot show any errors your computer might emit a series of beeps during start-up.

3 means 3-3-3-3…That is 3 beeps and 3 beeps and …: Endless looping until user presses the power button to shut down the system.

The delay between each beep is 300ms. The delay between each set of beeps is 3 sec, and the beep sound lasts 300ms.

After each beep and each set of beeps, the BIOS should detect if the user presses the power button, if so, BIOS will jump out from looping and execute the normal shutdown process and power system.