Mode de compatibilité

A compatibility mode is a software mechanism in which a software either emulates an older version of software, or mimics another operating system in order to allow older or incompatible software or to remain compatible with the computer's newer hardware or software. Examples of the software using the mode are operating systems and Internet Explorer. A compatibility mode in an operating system is a software mechanism in which a computer's operating system emulates an older processor, operating system, and/or hardware platform in order to allow older software to remain compatible with the computer's newer hardware or software. This differs from a full-fledged emulator in that an emulator typically creates a virtual hardware architecture on the host system, rather than simply translating the older system's function calls into calls that the host system can understand. Examples include Classic Mode in Mac OS X and compatibility mode in Microsoft Windows, which both allow applications designed for older versions of the operating system to run. Other examples include Wine to run Windows programs on Linux / OS X and Mono to run .NET programs on various Unix-like systems. "Compatibility View" is a compatibility mode feature of the web browser Internet Explorer in version 8 and later. When active, Compatibility View forces IE to display the webpage in Quirks mode as if the page were being viewed in IE7. When compatibility view is not activated, IE is said to be running in native mode. In IE11, a user can turn on compatibility mode for a web site by clicking the Gears icon and clicking Compatibility View Settings. Internet Explorer 8 was promoted by Microsoft as having stricter adherence to W3C described web standards than Internet Explorer 7. As a result, as in every IE version before it, some percentage of web pages coded to the behavior of the older versions would break in IE8. This would have been a repetition of the situation with IE7 which, while having fixed bugs from IE6, broke pages that used the IE6-specific hacks to work around its non-compliance.