Software
Software for the 1401 included:
- IBM 1401 Symbolic Programming System assembler.
- Autocoder on Tape, a more advanced assembler, required at least 4K memory and four tape drives.
- Autocoder on Disk, similar to, but not compatible with, Autocoder on Tape, required one or more 1311 disk drives.
- FARGO (Fourteen-o-one Automatic Report Generation Operation), a predecessor of RPG, required 4K memory.
- FORTRAN II required at least 8K memory; the 1401 Fortran compiler is described in Haines, L.H. (1965), below. The Fortran compiler, to generate code for small memories, used a pioneering form of interpreted "p-code" although, of course, its programmers had no name for what it was that they did.
- FORTRAN IV required at least 12K memory and either 4 tape drives or 1 IBM 1311 disk drive.
- COBOL required at least 4k memory and 4 tape drives.
- IBM RPG (Report Program Generator) Basic RPG required at least 4K memory.
For the IBM Catalog of 1401 software, see IBM 1400 series.
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