History of Windows Versions

WINDOWS 1.0 ---------> 16 Bit Os (1985)

WINDOWS 2.0 ---------> 16 Bit Os (1987)

WINDOWS 3.0 ---------> 16 Bit Os (1990)

WINDOWS 3.1 ---------> 16 Bit Os (1992)

WINDOWS NT 3.1 ------> 32 Bit Os (1993)

WINDOWS 95 ----------> Used WIN32 API (1995)

WINDOWS NT 4  (1996)

WINDOWS 98  (1998)

WINDOWS ME  (2000)

WINDOWS 2000 (or also Known as WINDOWS NT 5) (2000)


WINDOWS XP (or also Known as WINDOWS NT 5.1) (2001)

WINDOWS SERVER 2003

WINDOWS XP PROFESSIONAL ----->Supports 64 Bit (2005)

WINDOWS VISTA (WINDOWS NT 6.0) (2007)


WINDOWS 7 (WINDOWS NT 6.1)  (2009)
------->WINDOWS ­­ 7 ULTIMATE
------->WINDOWS ­­ 7 HOME PREMIUM
------->WINDOWS ­­ 7 HOME BASIC
------->WINDOWS ­­ 7 PROFESSIONAL
------->WINDOWS ­­ 7 STARTER
------->WINDOWS ­­ 7 ENTERPRISE

WINDOWS SERVER 2012  (2012)


WINDOWS 8 (WINDOWS NT 6.2) (2012)
------->WINDOWS ­­ 8
------->WINDOWS ­­ 8 Pro
------->WINDOWS ­­ 8 ENTERPRISE
------->WINDOWS ­­ 8 RT (FOR TABLETS)

NOTE :

XP-EXTENDED PROCEDURE
NT-NEW TECHNOLOGY
RT-RUNTIME