The IBM 1401 is a transistorized data-processing computer introduced in 1959, used for business workloads involving punched cards, printing and magnetic tape. Its stored programs transformed records and coordinated input/output devices, making it a historically important example of computing organized around data processing.[ref]
It also provides a concrete scientific-computing benchmark. Bresenham reported a 333-core-location IBM 1401 program controlling an IBM 1627 Plotter, with approximately1.5 milliseconds of computation between successive plotted increments.[ref] The report connects an algorithm's arithmetic choices to actual program storage and timing. These are measurements for that implementation and task, rather than universal instruction timings for every 1401 program.
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The IBM 1401 is a variable-wordlength computer that was announced by IBM in 1959. It was significant for its time as it marked IBM's entry into the market for smaller, less expensive computers, suitable for businesses and academic institutions. Here are some key points about the IBM 1401: 1. **Architecture**: The IBM 1401 was based on a transistorized architecture, which allowed it to be smaller, faster, and more reliable than vacuum tube-based computers.
