Windows Vista
Yes, it is a PC operating system released by Microsoft in October 2009.
There will not be a PC operating system to be released in 2010 by Microsoft. Microsoft has their hands full with Windows 7. Its life span will most likely be the length of Windows XP.
Microsoft's Vista operating system was released on January 30, 2007, five years after Windows XP. It was popular for about two years, until Microsoft released Windows 7.
Microsoft 95 was the first operating system by Microsoft
Windows 95 was the "first Microsoft Windows operating system" released on August 24, 1995. The "first Microsoft Operating system" was DOS 1.0. Windows 1.0 up to 3.1 were all operating environments. That is software that acts as an operating system, but need an operating system to boot in this case DOS. The answer to your very specific question is Window 95 that was released on August 24, 1995.P.S. Windows 95 was also the first Windows to utilize Plug and Play. (PnP)
Windows 7
Windows 7
MicroSoft - Disk Operating System
The "latest" OS released by Microsoft is Windows Server 2008. The latest USER operating system is Vista.
The 6 operating system is a computer operating system that was released in 1985. It was developed by Microsoft and was the first operating system to be released by the company. The 6 operating system is based on the MS-DOS operating system and was the first version of Windows to be released. The 6 operating system was succeeded by the Windows 3.1 operating system.
Windows Vista
windows vista