Q&A: What computer software were computers using before Microsoft was invented?

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Before microsoft there was very little scopefor personal computers and softwares related to those computers. Still there were somesoftwares and software building programming languages. FORTRAN or formula translation,the first high level programming language, was invented by John Backus for IBM, in 1954,and released commercially, in 1957. It is still used today for programming scientificand mathematical applications. Fortran began as a digital code interpreter for the IBM701 and was originally named Speedcoding. John Backus wanted a programming languagecloser to human language, which is the definition of a high level language.At that time the softwares available were Aldus Pagemaker, Trillian, Wordstar, ComputerChess, VisiCalc Spreadsheet. WordStar - The First Word Processor Released in 1979 byMicropro International, WordStar was the first commercially successful word processingsoftware program produced for microcomputers and the best selling software program ofthe early eighties. first desktop publishing program was created by Paul Brainard and acompany called Aldus, the program called "Aldus Pagemaker 1.0" was released in July,1985 for the "Macintosh" and in December, 1986, for the "IBM". If you go with thehistory of operating system than previously there was nothing except UNIX.

Before Microsoft I used Dos. I’ve got one unit with it in my Garage. 32kb of RAM .