Microsoft launched Windows 95 operating system. Referred as Windows 4.0 with the codename of "Chicago", the operating system is a major overhaul and improvements from its predecessors. Windows 95 was Microsoft's first attempt in integrating its formerly separate MS-DOS and Windows products. There were also major changes made at lower levels of the operating system, such as moving from a mainly 16-bit architecture to a multitasked 32-bit architecture.
Included in the installation was MSN (originally The Microsoft Network), a collection of internet websites and services provided by Microsoft. MSN was debuted as simple online service and internet service provider to coincide with the release of the Windows 95 operating system, and as an experiment for interactive multimedia content on the internet.