The 30 anniversary of MS-DOS 4.0 with the graphic interface and support of a mouse

In June, 1988 there was the important MS-DOS 4.0 version, developed an IBM vsotrudnichestvo from Microsoft COR. Srediprochy innovations in it for the first time there was a support of a mouse and a graphic cover of DOS Shell, bazovyeprintsipy of which still are cornerstone of the Windows interface...