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A mainframe computer, informally called a mainframe or big iron, [1] is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.
Such systems may constitute personal computers (including desktop computers, portable computers, laptops, all-in-ones, and more), mainframe computers, minicomputers, servers, and workstations, among other classes of computing. The following is a list of notable manufacturers and
Control Data Corporation mainframe software (1 C, 4 P) G. Mainframe games (1 C, 34 P) I. IBM mainframe software (1 C, 69 P) Pages in category "Mainframe computer ...
Mainframe computer software (3 C, 17 P) B. Burroughs mainframe computers (12 P) C. Control Data Corporation mainframe computers (1 C, 8 P) D. DEC mainframe computers ...
Software for IBM mainframe computers, including operating systems, middleware, databases, utilities, applications, etc. Subcategories This category has only the following subcategory.
This includes all computer companies (except spin-offs of defunct companies which are still active and defunct software companies) that can also be found in the subcategories. This category is for defunct computer companies of the United States , including companies that designed or manufactured computer hardware and peripherals .
The company's technical team included 2 recruits from MIT (see CTSS above), Dick Orenstein and Harold Feinleib. As it grew, the company renamed itself National CSS and modified the software to increase the number of paying users it could support until the system was sufficiently different that it warranted a new name, VP/CSS.
IBM 704 mainframe at NACA in 1957. From 1952 into the late 1960s, IBM manufactured and marketed several large computer models, known as the IBM 700/7000 series.The first-generation 700s were based on vacuum tubes, while the later, second-generation 7000s used transistors.