Predates Windows 8 in Vista. Windows RT 8.1 was not known as Windows 8, until June 2, 2012. Prior to Windows Vista, Windows releases were numbered sequentially, with the numbering starting after Windows XP. For example, XP, Vista, 7, 8. Windows Vista used DirectX 9, whereas Windows 7 and 8 use DirectX 11. Windows 8 was launched in beta to developers on October 13, 2009, followed by a public beta on November 10, 2009, and released on October 29, 2010. Feature support for Windows 8 ended with Windows 8.1 Update 1 on March 2014. Windows 8.1 was launched to users on April 12, 2014. Windows OS 8.1 was marketed to users for over a year as the difference between Windows 8 and Windows 8.1. Windows 8.1 is the first version of the Windows operating system to address Microsoft's new Internet Explorer 11 as the default browser. Windows 9 was released on June 2, 2015.
With Windows Vista, Windows includes the Microsoft Application Compatibility Toolkit (Accessibility Toolkit). The Windows Desktop Experience feature set is targeted at mainstream desktop and notebook customers. Windows Vista introduces a new toolkit called the Windows Productivity Toolkit (also referred to as the Windows Mobility Kit). It includes a set of "key performance improvements" and "enhanced productivity features for business customers." “The Windows Mobility Kit is designed to enable Windows-based laptops and tablets to instantly and automatically turn on if the user opens the lid or resumes from standby. Additionally, this Windows Mobility Kit enhances productivity by providing a new screen saver feature so that the computer is automatically downloaded and configured to automatically unlock and boot to the desktop after a specified amount of time – or even when the user doesn’t touch the installation for a specified amount of time,” says Inga Rader, group manager of the Microsoft Mobility team. d2c66b5586