10 Facts About IBM 1130

The 1130 holds a place in computing history because it gave many people their first direct interaction with a computer.

The IBM 1130 uses magnetic-core memory, which the processor addresses on word boundaries, using direct, indirect, and indexed addressing modes.

IBM 1130 distributed a large library of programs, both IBM 1130-supported and unsupported (Type III and IV).

Since the IBM 1130 was aimed primarily at the scientific market, scientific and engineering programs predominated:.

IBM 1130 occupied a niche as a data processing machine for smaller organizations:.

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Batch operation of the IBM 1130 is directed by control records in the primary input stream.

IBM 1130 supported only single-precision and double-precision binary data natively stored in big-endian format.

The IBM 1130 would be stuck at location 0, and the IAR lights on the console would be entirely dark, making it clear the program had failed.

For example, although the IBM 1130 has an OR instruction, the syntax of Fortran provides no way to write it.

IBM 1130 FORTRAN offers two floating point formats: a 32-bit "standard precision" format and a 40-bit "extended precision" format.