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Most large-scale computer-system architectures were established in the 1960s, but they continue to evolve. Mainframe computers are often used as servers. The term mainframe was derived from the large cabinet, called a main frame, [2] that housed the central processing unit and main memory of early computers.
The IBM 704 is the model name of a large digital mainframe computer introduced by IBM in 1954. Designed by John Backus and Gene Amdahl, it was the first mass-produced computer with hardware for floating-point arithmetic. [1] [2] The IBM 704 Manual of operation states: [3]
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.
The IBM System/360 (S/360) is a family of mainframe computer systems announced by IBM on April 7, 1964, [1] and delivered between 1965 and 1978. [2] System/360 was the first family of computers designed to cover both commercial and scientific applications and a complete range of applications from small to large.
Ken Olsen, the MIT-educated inventor who started Digital Equipment Corp. with $70,000 in venture capital in the 1950s and built it into a company with billions of dollars in sales and more than ...
The IBM 701 was the first computer in the IBM 700/7000 series, which were IBM’s high-end computers until the arrival of the IBM System/360 in 1964. [ 5 ] The business-oriented sibling of the 701 was the IBM 702 and a lower-cost general-purpose sibling was the IBM 650 , which gained fame as the first mass-produced computer.
The first experimental system went live in 1960 and the system took over all booking functions in 1964 – in both cases using IBM 7090 mainframes. In the early 1960s IBM undertook similar projects for other airlines and soon decided to produce a single standard booking system, PARS , to run on System/360 computers.
The 700/7000 commercial architecture inspired the very successful IBM 1400 series of mid-sized business computers. In turn, IBM later introduced a mainframe version of the IBM 1410 called the IBM 7010. Data format. Data is represented by a variable length string of characters terminated by a word mark. Instruction format