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.
1 Change the directory to where your .gz file currently resides. 2  If you saved it to the Desktop, for example, enter at the [] cursor: cd /Users/Yourname/Desktop. 3  Terminal should respond by creating a new line that says Macintosh:Desktop Yourname$ []. 4  Enter gunzip-d and the name of the file, including the extension.t was adopted by the GNU project, and is a popular compression format on the Internet. You can unzip .gz files in Windows XP, Vista, 7, and Mac OS X by using unzipping software that supports the file extension.