The numbers for Apple's operating systems currently vary because Apple introduced initial versions at different times. Bloomberg is reporting that Apple will soon change how it names its next operating systems, switching to a system using years rather than a version number. At WWDC, Apple also reportedly plans to introduce a new look to its interface across all Apple products and operating systems, rumored to be code-named "Solarium" after glass rooms that bring in sunlight. The goal is to unify the design of Apple products so that moving from iPhone to iPad to Mac will feel like moving within the same operating system. Microsoft began naming its operating systems after the year they launched, starting with Windows 95 in 1995 and moving to Windows 98 and Windows 2000.