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What is a Zip?

Zip is a common type of file compression. "Zipping" one or more files creates a compressed archive that takes up less disk space than the uncompressed version. It is useful for backing up files and reducing the size of data transferred over the Internet. An archive compressed with standard Zip compression has a .ZIP file extension — for example, Archive.zip. To open the file or files in a Zip archive, you must first "unzip" or decompress the archive. Both Windows and macOS include a built-in file decompression utility that can unzip Zip files. Alternatively, you can use a third-party file ... Read more

What is Compression?

Compression, or "data compression," is used to reduce the size of one or more files. When a file is compressed, it takes up less disk space than an uncompressed version and can be transferred to other systems more quickly. Therefore, compression is often used to save disk space and reduce the time needed to transfer files over the Internet. There are two primary types of data compression: File CompressionMedia Compression File compression can be used to compress all types of data into a compressed archive. These ... Read more

What is BMP?

Short for "Bitmap." It can be pronounced as "bump," "B-M-P," or simply a "bitmap image." The BMP format is a commonly used raster graphic format for saving image files. It was introduced on the Windows platform, but is now recognized by many programs on both Macs and PCs. The BMP format stores color data for each pixel in the image without any compression. For example, a 10x10 pixel BMP image will include color data for 100 pixels. This method of storing image information allows for crisp, ... Read more

What is EXIF?

Stands for "Exchangeable Image File Format." EXIF is a standard means of tagging image files with metadata, or additional information about the image. It is supported by both the TIFF and JPEG formats, but is most commonly seen in JPEG images captured with digital cameras. When you take a picture with a digital camera, it automatically saves EXIF data with the photo. This typically includes the exposure time (shutter speed), f-number (aperture), ISO setting, flash (on/off), and the date and time. Some cameras may save additional EXIF data, ... Read more
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