Hitachi, Ltd. has 11 business segments. Information and Telecommunication System segment provides system integration services and automated teller machines (ATM). Electricity System segment offers nuclear, hydraulic and wind power generation systems. Social and Industrial System segment offers industrial machinery and plants. Electronic Device and System segment offers liquid crystal displays (LCD) and others. Construction segment offers hydraulic shovels and wheel loaders. High Functional Material segment offers electric wires, cables and semiconductor materials. Automotive System segment offers engine management and in-car information systems. Component and Device segment offers hard disk drives and LCDs. Digital Media and Consumer Product segment offers optical disk drives and refrigerators. Financial Service segment offers leasing and loan services. The Others segment manages real estate. On March 8, 2012, it transfered Hard Disk Drive business to Western Digital Corp.