In a graphical user interface operating system is dialog box is just a new window that appears that beats all others that provides options, mistakes, or extra information.
When the user clicks on any options which have further details they often appear in a dialog box. An example of a dialog box is the about box found in many software programs, which usually displays the name of the program, its version number, and may also include copyright information.
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The hard disk was invented on September 13, 1956 by IBM team led by Rey Johnson (considered as “father” of the disk drive). Earlier hard disk drives were large and cumbersome devices.