On November 20, the first Windows system comes into the market. PCtipp looks back at 33 years of Microsoft's history.
Simon Gröflin, NMGZ
On November 20, 1985, Microsoft Windows 1.0 came under the code name "Interface Manager". The operating system has replaced MS-DOS and has been an important milestone. Even today, Windows 10 combines certain features of the first operating system. At that time, 85% of the source code was written in the programming language C, an important part of the program in the machine language assembler. Only hardware, such as a mouse and hard drive or color graphics card, was still too expensive for many users. Anniversary, a review of Windows versions over the last three decades.