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A mainframe computer , or mainframe , is also known as a central computer . It is a large, powerful, and expensive computer , mostly used by large companies for bulk data processing and critical applications. It processes a large amount of data used in the processing of bank transactions, census, statistical work, enterprise resource planning (ERP), database management, etc. A mainframe computer is large but not as large as a supercomputer and has more processing power than some other classes of computers, such as minicomputers, workstations, and personal computers. Difinition: A Mainframe Computer is a high performance Multi User computer system which is the most scalable, available, reliable and secured machine in the world capable of performing some Million Instructions in realtime (upto 569,632 MIPS) with the following characteristics: 1) Most reliable single-thread performance (batch processing) 2) Fastest commercial multi-thread performance (online processing) 3) Maximum I/O connectivity (1024 I/O channels) 4) Maximum I/O bandwidth (25 Gigabit/s ... What Is Mainframe ? A mainframe computer , also called “ big iron,” is a high-performance business computing system known for its large size, extensive storage and memory capacity, processing power, and high level of reliability. It is designed for large-scale data processing and critical enterprise applications. A single mainframe can replace dozens or even hundreds of smaller servers. Early mainframes are explained as large, room-sized metal frames first introduced in the 1950s. Some ...
