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NonStop is a series of server computers introduced to market in 1976, beginning with the Tandem NonStop product line, which was followed by the HP Integrity NonStop product line extension. Because NonStop systems are based on an integrated hardware/software stack, HP also developed a special operating system for them: NonStop OS. NonStop systems are, to an extent, self-healing. To circumvent single points of failure, they are equipped with some redundant components. When a mainline component fails, the system automatically falls back to the backup. These systems are often used by banks, stock exchanges, telecommunication providers and other enterprises requiring extremely high uptime. == History == Originally introduced in 1976 by Tandem Computers Inc., the line was later owned by Compaq (from 1997) and Hewlett-Packard (since 2003). In 2005, the current product line of HP Integrity NonStop servers, based on Intel Itanium microprocessors, was introduced. In 2014, the first systems "NonStop X" running on the Intel X86 chip, were introduced. Early NonStop applications had to be specially coded to be fault-tolerant. That obstacle was removed in 1983 with the introduction of the Transaction Monitoring Facility (TMF), which handles the various aspects of fault tolerance on the system level, transparent to the application. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「NonStop」の詳細全文を読む スポンサード リンク
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