IBM 1130 computer

IBM 1131 Central Processing Unit

IBM 1132 Printer

  1. Device identification  

Name: IBM 1130 Computer (IBM 1131 CPU and IBM 1132 Printer) ( IBM 1130 Computer )

Location: Higher Technical School of Engineering, ETSI. Mezzanine 2

Provenance: Acquired by the US School of Engineering for its Data Processing and Communications Center (CPDC), created in 1969, currently the Computing Center.

  1. Technical characteristics

Measurements: 116.20 x 147.32 x 73.66 cm (overall)

Material: Metal / Plastic / Electronic components

Employment: Calculation operations in the fields of science, engineering and education fundamentally. This computer was in service for more than 20 years at ETSI, from its acquisition (c. 1979) until the late 1980s.

Overview : First desktop computer released by IBM on February 11, 1965. One of the first to use removable disk storage. It belongs to the so-called 3rd generation of computers, which incorporated miniaturized circuits and technical advances developed in solid state technology. 16-bit binary architecture. Direct and indirect addressing capability. Most of its programs were made in the Fortran ; Other programming languages ​​available on the 1130 were: APL , BASIC , COBOL , FORTH , PL/I and RPG .

The IBM 1131 Central Processing Unit had magnetic memory with a capacity of 16,384 positions of 16 cores each, each position being able to store 4 digits, thus giving a total of 65,536 digits of storage capacity. The access time to a memory location was 3.6 microseconds, being able to perform 125,000 additions per second. IBM implemented five models of the 1131 Central Processing Unit

Among the complete line of peripherals for the IBM 1130 were: – Auxiliary memory on magnetic disk with a capacity of 512,000 memory locations capable of storing 2,048,000 digits. – IBM 1442 card reader-punch for serial feeding of cards for input and output operations; It read at a rate of 400 cards per minute and punched 160 columns per second, that is, two complete cards per second. – IBM 1627 Plotter… – and IBM 1132 Printer , for online printing up to 110 lines per minute and 120 characters per line. This printer was the lowest priced printer offered by IBM up to that time (1965).

The IBM 1130 was the first contact with the computer for many people. It was offered as rental equipment (less than $1,000) and, to a lesser extent, for sale (between $32,280 and $41,230 in 1965). The company offered facilities for its acquisition.

  1. Cataloging-Documentation

Date: c. 1969-1972/1965 (IBM 1130 release date)

Manufacturer/Brand: International Business Machines Corporation (IBM)

Country: United States

Serial No. and Model: IBM 1130

Technical description : Description of the IBM 1131 Central Processing Unit on a poster attached to the equipment described: “16-bit architecture. 15-bit addressable memory with a maximum memory of 64 kilobytes. Interchangeable hard drives, with storage capacity between 1 and 11 megabytes and maximum transfer rate of 70 kilobytes. User programs were coded on punched cards , with the Fortran programming language…” –.

The Central Processing Unit 1131 was the main processing component of the IBM 1130 Computing System.

  1. Condition: Good. It is displayed in a closed display case.
  2. Observations : In the inaugural opening lecture of the 1994-1995 academic year at the University of Seville, given by Professor José Cortés Gallego ( A classic problem: The number Pi ), the author refers in a paragraph to this IBM 1130 computer: “ …I don't want to fail to point out that at this time a Calculation Center was already operating at the Higher School of Industrial Engineers around an IBM type 1130 computer and in which I obtained some results on a matrix eigenvalues ​​program that I had made myself. same. This first Calculation Center was not general for the entire University but only for Engineering students. Professors Quijada and Roballo, who were in charge of it, gave me access to this computer that was already built with transistors, that is, it did not belong to that first generation. This constituted an important step for the computerization of our University. …. It was provisionally installed in the Numerical Calculus laboratory room of the Faculty of Mathematics of the old Tobacco Factory, where we had to install two air conditioners and humidity controllers. Shortly after, he was in the new Reina Mercedes building and could work more comfortably. In any case, although it was a very powerful computer, it was very laborious to pass a program through the punched card system and have to send it to Madrid, waiting for the response in the queue that sometimes lasted up to 24 hours...
  3. Bibliography and Sources / More information:

– * IBM1130. org . All about the IBM 1130 Computing System . Available at: http://ibm1130.org/ [Consulted: 03-22-2019]

– IBM. Data Processing Division . IBM 1130 . Available at: http://media.ibm1130.org/E0002.pdf [Accessed 4-10-2016]

– IBM. IBM 1132 Printer. Manual of instruction . Available at: http://media.ibm1130.org/IBM%20227-3622-1%20FETO-MOI%201132%20printer.pdf [Accessed: 10-18-2016]

– Computer History Museum. Images and descriptions of the IBM 1130. Available at: http://www.computerhistory.org/revolution/minicomputers/11/358/1979 [Accessed: 03-22-2019]

– IBM 1130. Wikipedia. Available at: https://es.wikipedia.org/wiki/IBM_1130 [Consulted: 03-22-2019]

-Ulke, RE; Zarratea Herreros, A. The first steps of computing in Paraguay . Available at: http://www.abc.com.py/edicion-impresa/suplementos/mundo-digital/los-primeros-pasos-de-la-computacion-en-paraguay-849593.html [Accessed: 03-22 -2019]

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