Windows 98

Windows 98 (codenamed Memphis while in development) is a graphical operating system by Microsoft. It is the second major release in the Windows 9x line of operating systems and the successor to Windows 95. It was released to manufacturing on May 15, 1998 and to retail on June 25, 1998.

Like its predecessor, Windows 98 is a hybrid 16-bit and 32-bit monolithic product with the boot stage based on MS-DOS. Windows 98 was succeeded by Windows 98 Second Edition (SE) on May 5, 1999. Microsoft ended mainstream support for Windows 98 and 98 SE on June 30, 2002, and extended support on July 11, 2006.

Windows 98's Development
 * 1) June 6, 1996 (Version 4.03.1132) -  Windows 95 with small changes. Released as Windows Memphis Developer Release
 * 2) June 30, 1997 (Version 4.10.1387) - Windows 98's First Beta. Not much known. Released as Windows Memphis Beta 1
 * 3) Sometime between August-December 1197 (Version 4.10.1538) - Had Major Changes from Windows 95. Released as Windows 8 Beta 2
 * 4) December 15, 1997 (Version 4.10.1650) - This build of Windows 98 can be upgraded from Windows 3.1x. It introduced the classic Windows 98 startup and shutdown sounds. Released as Windows Beta 3
 * 5) April 3, 1998 (Version 4.10.1691) - This was a release candidate for Windows 98. It expired at the end of 1998. Released as Windows 98 Release Candidate.
 * 6) Compiled on May 11, 1998, Release to Manufacturing in May 15, 1998, and release to the pubic on June 25,1998. (Version 4.10.1998) - This is the official build of Windows 98 that is released to the public.
 * 7) May 5, 1999 (4.10.2222) - An upgraded version of Windows 98 with additional features. Released as Windows 98 Second Edition. Commonly abbreviated as Windows 98 SE