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• What Is .50 caliber machine gun Type 89
  The Type 89 (QJZ-89) is a Chinese 12.7mm heavy machine gun officially adopted by the People's Liberation Army in 1989, w...
• What Is .50 caliber revolver
  A .50 caliber revolver is a large-frame handgun that fires .50 caliber ammunition, most commonly the Smith & Wesson Mode...
• What Is .500 smith and wesson mag
  The .500 S&W Magnum is a large-caliber revolver cartridge introduced by Smith & Wesson in 2003, firing a 500-grain (32.4...
• What Is .9 repeating
  0.999... (zero point nine repeating) is a decimal where the digit 9 repeats infinitely after the decimal point, and it m...
• What Is .AHK
  .AHK is the file extension for AutoHotkey scripts, a free Windows-based scripting language created in 2003 that enables ...
• What Is .AIA
  .AIA is the project file format used by MIT App Inventor, a web-based visual programming platform launched in December 2...
• What Is .APE
  APE (Monkey's Audio) is a free, open-source lossless audio codec created in 2000 that compresses audio files to 40-60% o...
• What Is .APK
  An APK (Android Package) is the standard file format used to distribute and install applications on Android devices, int...
• What Is .APK file
  An APK (Android Package) file is the standard file format used to distribute and install applications on Android devices...
• What Is .ASC
  .ASC is a file extension primarily used for ASCII-armored encrypted data, most commonly in PGP/GPG encryption formats es...
• What Is .AppImage
  AppImage is a universal Linux application format created in 2004 by Simon Peter that allows running portable application...
• What Is .Avi file
  AVI (Audio Video Interleave) is a multimedia container format developed by Microsoft in 1992 that stores both audio and ...
• What Is .BIN
  .BIN is a binary file format that stores complete sector-by-sector data from optical discs (CDs, DVDs, Blu-rays), preser...
• What Is .BMP
  BMP (Bitmap) is an uncompressed image file format developed by Microsoft in 1988, designed as the standard image type fo...
• What Is .Biz
  .biz is a generic top-level domain (gTLD) launched on June 3, 2001, created specifically for business websites. Managed ...
• What Is .CDF
  Common Data Format (.CDF) is a self-describing, standardized data format developed by NASA in 1985 to store scientific a...
• What Is .CHM
  .CHM (Compiled HTML Help) is a proprietary Microsoft file format introduced in 1997 as the successor to WinHelp (.hlp), ...
• What Is .COM
  .COM is the world's most popular top-level domain (TLD) extension representing "commercial," established on January 1, 1...
• What Is .CR2
  CR2 is Canon Raw 2, a proprietary raw image format introduced by Canon in 2004 for its EOS digital cameras. CR2 files pr...
• What Is .CR3
  .CR3 is Canon's Raw 3 image format introduced in 2018 with the EOS R mirrorless camera line, designed to store uncompres...
• What Is .CRC
  A CRC (Cyclic Redundancy Check) is a mathematical algorithm used to detect accidental errors in data transmission and st...
• What Is .CRS
  A Coordinate Reference System (CRS) is a framework used in geospatial technology to define how geographic locations are ...
• What Is .Club Domains
  The .club domain is a generic top-level domain (gTLD) launched in 2014 by ICANN as part of the new gTLD expansion progra...
• What Is .DMG
  .DMG files are macOS disk image files created by Apple that function as virtual disks, commonly used to distribute softw...
• What Is .DOCX
  .DOCX is the modern file format for Microsoft Word documents, introduced in 2007 with Office 2007, using an open XML-bas...
• What Is .DSN
  DSN (Data Source Name) is a standardized configuration string that contains database connection parameters, enabling app...
• What Is .DWG
  DWG is a proprietary file format created by Autodesk in 1982 that stores 2D and 3D design data, geometry, and metadata f...
• What Is .DXF
  DXF (Drawing Exchange Format) is an open-source CAD file format developed by Autodesk in December 1982 to enable the int...
• What Is .EGG
  .EGG is a generic top-level domain (gTLD) introduced by ICANN in 2016 and managed by VeriSign, offering a specialized we...
• What Is .EXE
  .EXE is the file extension for Windows executable programs, originating from MS-DOS in 1981 and evolved to the Portable ...
• What Is .EXM
  .EXM is a file extension used by exam management systems like ExamSoft, Respondus, and VCE Exam Simulator to store test ...
• What Is .FDF
  .FDF (Forms Data Format) is a file format developed by Adobe in the 1990s for storing form data and annotations associat...
• What Is .GIF
  GIF (Graphics Interchange Format) is a digital image format created by CompuServe in 1987 that supports up to 256 colors...
• What Is .GML
  Geography Markup Language (GML) is an OGC-standardized XML format for encoding and exchanging geographic data, first rel...
• What Is .HEIC
  HEIC (High Efficiency Image Container) is a modern image format developed by the Moving Picture Experts Group (MPEG) tha...
• What Is .HEIF
  HEIF (High Efficiency Image File Format) is a modern image compression standard developed by the ITU and released in 201...
• What Is .HEX
  A .HEX color code (also called hex color or hexadecimal color) is a six-digit alphanumeric code preceded by a hash symbo...
• What Is .HTM
  .HTM is an alternative file extension for HyperText Markup Language files created in the early 1990s to work around the ...
• What Is .Hack
  .Hack is a Japanese multimedia franchise that began in 2002, centered around a fictional MMORPG called "The World" and f...
• What Is .ICO
  An Initial Coin Offering (ICO) is a fundraising mechanism where blockchain projects issue new cryptocurrency tokens to i...
• What Is .IGES
  .IGES (Initial Graphics Exchange Specification) is an international CAD file format developed in 1980 to enable data exc...
• What Is .IMA
  .IMA files are raw disk image formats that store complete byte-for-byte copies of storage devices, partitions, or floppy...
• What Is .JAR
  JAR (Java Archive) is a file format based on ZIP compression used to package Java class files, resources, and metadata i...
• What Is .JFI
  .JFI is a file extension for JPEG image files, standing for JPEG File Interchange format. Fully compatible with .JPG and...
• What Is .JPE
  .JPE is an alternate file extension for JPEG images, a format standardized in 1992 by the Joint Photographic Experts Gro...
• What Is .JXR
  JPEG XR (.JXR) is a still image compression standard developed by Microsoft and released in 2009 as ITU-T T.832 and ISO/...
• What Is .MCS
  .MCS is a file extension used in multiple software applications, most notably Micrografx Designer (a vector graphics pro...
• What Is .MKV
  MKV (Matroska Video) is an open-source, free multimedia container format created in 2002 that can store multiple video, ...
• What Is .MOV
  MOV is a multimedia container format developed by Apple in 1998 as part of QuickTime technology, widely used for profess...
• What Is .MP3
  MP3, short for MPEG-1 Audio Layer III, is a digital audio compression format standardized in 1995 that uses lossy compre...