MS-DOS celebrates anniversary: ​​30 years of command-line

Who had done in the 80s and 90s with personal computers, will still remember vividly the command line, optimizing the Autoexec.bat and Config.sys or Word without a graphical user interface. Today celebrating the 30th founding father of Microsoft operating systems Name day. On 27 July 1981-validated Bill Gates that is probably the most important purchase in his career: For $ 75,000, equivalent to