Editing I486 (section)

==Obsolescence==
The [[AMD Am5x86]] and [[Cyrix Cx5x86]] were the last i486 processors often used in late-generation i486 motherboards. They came with PCI slots and 72-pin SIMMs that were designed to run [[Windows 95]], and also used for 80486 motherboards upgrades. While the [[Cyrix Cx5x86]] faded when the [[Cyrix 6x86]] took over, the [[AMD Am5x86]] remained important given [[AMD K5]] delays.

Computers based on the i486 remained popular through the late 1990s, serving as low-end processors for entry-level PCs. Production for traditional desktop and laptop systems ceased in 1998, when Intel introduced the [[Celeron]] brand, though it continued to be produced for [[embedded systems]] through the late 2000s.

In the general-purpose desktop computer role, i486-based machines remained in use into the early 2000s, especially as Windows 95 through [[Windows 98|98]] and [[Windows NT 4.0]] were the last Microsoft operating systems to officially support i486-based systems.<ref>{{cite web |url = http://support.microsoft.com/kb/182751 |title = Minimum Hardware Requirements for a Windows 98 Installation |date = January 24, 2001 |archive-url = https://web.archive.org/web/20041205061101/http://support.microsoft.com/kb/182751 |archive-date = December 5, 2004 }}</ref><ref>{{cite web |url = http://www.winhistory.de/more/nt4.htm |title = Windows NT 4.0 Workstation |publisher = WinHistory.de |language=de}}</ref> [[Windows 2000]] could run on an i486-based machine, although with a less than optimal performance, due to the minimum hardware requirement of a Pentium processor.<ref>{{cite web |url = https://www.youtube.com/watch?v=d33rIWdgc_A&t=380s&ab_channel=HARDWARECOP |title = World Record*: Windows 2000 running on Intel i486 SX 25 MHz |website = [[YouTube]] |date = July 29, 2013 }}</ref> However, as they were overtaken by newer operating systems, i486 systems fell out of use except for [[backward compatibility]] with older programs (most notably games), especially given problems running on newer operating systems. However, [[DOSBox]] was available for later operating systems and provides emulation of the i486 instruction set, as well as full compatibility with most DOS-based programs.<ref>{{cite web |url = http://www.dosbox.com/wiki/System_Requirements |title = System Requirements |publisher = DOSBox.com }}</ref>

The i486 was eventually overtaken by the Pentium for [[personal computer]] applications, although Intel continued production for use in [[embedded systems]]. In May 2006, Intel announced that production of the i486 would stop at the end of September 2007.<ref name="i486LastShipment2007"/><ref>{{cite web |url = http://www.reghardware.co.uk/2006/05/18/intel_cans_386_486_960_cpus/ |title = Intel cashes in ancient chips. i386, i486, i960 finally for the chop |date = May 18, 2006 |author = Tony Smith |access-date = May 20, 2012 |publisher = [[The Register]] Hardware |archive-url = https://web.archive.org/web/20110813073335/http://www.reghardware.com/2006/05/18/intel_cans_386_486_960_cpus/ |archive-date = August 13, 2011 |url-status = dead }}</ref>