Samsung YEPP the iPod's operating system. The Z5F has some features, such as an FM radio and a dictaphone, not provided on the Z5. To celebrate the sale of one million Z5Fs, Samsung auctioned 10 gold-plated Z5Fs in Korea. The player has the re-designed YEPP logo. According to a firmware release schedule on the official YEPP website, Z5(F) should have received a text-file reader on 30 December 2006. The firmware for a text reader was instead released in September 2007 (version 2.51). The player was expected to support video playback, but this feature was not included in the official release, pending further
Samsung Lee's death in 1987, Samsung was separated into four business groups – Samsung Group, Shinsegae Group, CJ Group and Hansol Group. Since 1990, Samsung has increasingly globalised its activities and electronics; in particular, its mobile phones and semiconductors have become its most important source of income. As of 2017, Samsung has the 6th highest global brand value. Notable Samsung industrial affiliates include Samsung Electronics (the world's largest information technology company, consumer electronics maker and chipmaker measured by 2017 revenues), Samsung Heavy Industries (the world's 2nd largest shipbuilder measured by 2010 revenues), and Samsung Engineering and Samsung C&T (respectively the world's