A: 4K â also known as UHD (more on this in the next answer!) â is a picture technology that quadruples the number of pixels found in a full HD picture. These pixels are usually arranged in a 3,840 x 2,160 configuration, compared with the 1920x1080 you get in a full HD TV.
Files with the .7z extension are very similar to Zip files. These files are compressed archive files, usually created by the 7-Zip file archive utility. 7Z files can make it easier to send files and folders over email and the Web.
The EMZ Vector image file format. EMZ files are image files which have been compressed. Programs such as Microsoft Visio and Office suit are able to view and use such files. Compressed with an GZIP compressing algorithm, the EMZ file contains an Enhanced Metafile (EMF).