Windows 2.0 was released in April 1987. It allowed users to control screen layout and overlap windows. It also had icons to represent files. Windows 2.0 supported the VGA system, meaning you can have 16 colours in a 640x480 resolution.

Windows 3.0 was released in May 1990, and this is when windows took off in sales. The GUI was updated with new icons. It was also capable of memory space over 640K.

Windows 3.1 was released in April 1992. It was the best selling computer in history at that time. It added the ability of shortcuts like Ctrl+Alt+Delete to close an application.

Windows 95 was released in August, 1995 and it changed the face of Windows forever. Windows 95 had features such as Plug-and-Play to make hardware installations easier, and dial-up networking for connecting to the Internet or another network via a modem. Windows 95 was the first Microsoft operating system that supported long filenames. Windows 95 also supported preemptive multitasking. Perhaps the most drastic change was that Windows 95 was a real OS, unlike it predecessors, it did not require DOS to be installed first. Windows 95b (OSR2) was an improved version that was never offered for sale to the public; it was only available to Original Equipment Manufacturers (OEMs) to install on new computers that they were offering for sale. Windows 95b added support for universal serial bus (USB) devices and the FAT32 file system that allowed for larger partitions, better disk space usage, and better performance. The "95" part matches my birth date, and that's why i have the username.