Windows 95

The Windows 95 Boot screen (actually from the OSR-2 version, the original does not have that stupid "Microsoft Internet Explorer" text.).
The Windows user interface has, once again, been completely revamped. This time it actually makes some sense. Not much, but some. There is also much more to Windows 95 than other versions, and is more than I could possibly show with a few screen shots, but here are some highlights:
In Windows 95, the window controls, located in the upper right of each window, have a new look. The system box now displays a small icon, and a "close" button has been added. Dialog box controls such as check boxes, option buttons, and text boxes all now have a 3D look to them.

Linux

This is the DVD Version of SuSE Linux 10.2 Live. The DVD is bootable on systems that support boot from DVD. With SuSE Linux 10.2 Live, there's no need to install a Linux system to have a full-featured desktop. Just place the live DVD into a DVD-ROM drive, boot from the disc, then watch an entire SuSE operating system run "on the fly" from the DVD-ROM.

Windows CE 3.0

Microsoft Windows CE 3.0 is an operating system (OS) designed for embedded systems including PDAs and mobile phones, working within the constraints of the slow processors and reduced amount of memory available on these devices. It can run on several different types of processor and has support for real time programming.
The successor to Windows CE 3.0 is Windows CE 4.0.

Windows 98

Windows 98 Second Edition (often shortened to SE) is an update to Windows 98, released on May 5, 1999. It includes fixes for many minor issues, improved USB support, and the replacement of Internet Explorer 4.0 with the significantly faster Internet Explorer 5. Also included is Internet Connection Sharing, which allow multiple computers on a LAN to share a single Internet connection through Network Address Translation. Other features in the update include Microsoft NetMeeting 3.0 and integrated support for DVD-ROM drives. However, it is not a free upgrade for Windows 98, but a stand-alone product. This can cause problems if programs specifically request Windows 98 SE, but the user only owns Windows 98. Also included on the CD-ROM is the option to install Microsoft Plus! themes for Windows 98. A list of all features new to Windows 98 Second Edition can be found here: KB234762

MS-DOS (short for Microsoft Disk Operating System) is an operating system commercialised by Microsoft. It was the most commonly used member of the DOS family of operating systems and was the dominant operating system for the PC compatible platform during the 1980s. It has gradually been replaced on consumer desktop computers by various generations of the Windows operating system.
MS-DOS was originally released in 1981 and had eight major versions released before Microsoft stopped development in 2000. It was the key product in Microsoft's growth from a programming languages company to a diverse software development firm, providing the company with essential revenue and marketing resources. It also provided the platform on which early versions of Windows ran.

Windows CE

Windows CE (also known officially as Windows Embedded CE since version 6.0) [2] [3](and sometimes abbreviated WinCE) is a variation of Microsoft's Windows operating system for minimalistic computers and embedded systems. Windows CE is a distinctly different kernel, rather than a trimmed-down version of desktop Windows. It is not to be confused with Windows XP Embedded which is NT-based. It is supported on Intel x86 and compatibles, MIPS, ARM, and Hitachi SuperH processors.

Windows XP

Windows XP is a line of operating systems developed by Microsoft for use on general-purpose computer systems, including home and business desktops, notebook computers, and media centers. The letters "XP" stand for eXPerience.[2] It was codenamed "Whistler", after Whistler, British Columbia, as many Microsoft employees skied at the Whistler-Blackcomb ski resort during its development. Windows XP is the successor to both Windows 2000 Professional and Windows Me, and is the first consumer-oriented operating system produced by Microsoft to be built on the Windows NT kernel and architecture. Windows XP was first released on October 25, 2001, and over 400 million copies were in use in January 2006, according to an estimate in that month by an IDC analyst.[3] It is succeeded by Windows Vista, which was released to volume license customers on November 8, 2006, and worldwide to the general public on January 30, 2007.
The most common editions of the operating system are Windows XP Home Edition, which is targeted at home users, and Windows XP Professional, which has additional features such as support for Windows Server domains and two physical processors, and is targeted at power users and business clients. Windows XP Media Center Edition has additional multimedia features enhancing the ability to record and watch TV shows, view DVD movies, and listen to music. Windows XP Tablet PC Edition is designed to run the ink-aware Tablet PC platform. Two separate 64-bit versions of Windows XP were also released, Windows XP 64-bit Edition for IA-64 (Itanium) processors and Windows XP Professional x64 Edition for x86-64.
Windows XP is known for its improved stability and efficiency over the 9x versions of Microsoft Windows. It presents a significantly redesigned graphical user interface, a change Microsoft promoted as more user-friendly than previous versions of Windows. New software management capabilities were introduced to avoid the "DLL hell" that plagued older consumer-oriented 9x versions of Windows. It is also the first version of Windows to use product activation to combat software piracy, a restriction that did not sit well with some users and privacy advocates. Windows XP has also been criticized by some users for security vulnerabilities, tight integration of applications such as Internet Explorer and Windows Media Player, and for aspects of its default user interface.
Windows XP had been in development since early 1999, when Microsoft started working on Windows Neptune, an operating system intended to be the "Home Edition" equivalent to Windows 2000 Professional. It was eventually merged into the Whistler project, which later became Windows XP.