Jump to content

IBM 1401 Symbolic Programming System

Add links
From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by 79.36.251.230 (talk) at 23:02, 30 April 2013 (→References). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

The IBM 1401 Symbolic Programming System (SPS) was an assembler that was developed by Gary Mokotoff, IBM Applied Programming Department, for the IBM 1401 computer, the first of the IBM 1400 series. One source indicates that "This programming system was announced by IBM with the machine."[1]

SPS-1 could run on a low-end machine with 1.4K memory, SPS-2 required at least 4K memory.

SPS-1 punched one card for each input instruction in its first pass and this deck had to be read during pass 2. At the University of Chicago and many other locations, SPS-1 was replaced by assemblers taking advantage of the commonly available 4K memory configuration to pack the output of pass one into several instructions per card. Other assemblers were written which placed the pass one output into memory for small programs.

As the 1400 series matured additional assemblers, programming languages and report generators became available, replacing SPS in most sites.

References

  1. ^ 1401 History

SIGNORI DELLA BANCA QUANTE VOLTE LO SCRITTO TANTE VOLTE L'ANNO CANCELLATO MA PERCHE DEVO SO FFRIRE TANTO NON C'E LA FACCIO PIU' TUTTI I DISPETTI POSSIBILI ME LI FANNO QUESTI COMMMM NON LI SOPPORTO PIU' IN CASA MIA MI STANNO FACENDO MORIRE LENTAMENTE MI ANNO MESSO CONTRO ANCHE I MIEI FIGLI CON LE LORO GASTROMANTI COMMM MI ANNA MENATO MI GUARDANO CON DISPEZZO NON C'E LA FACCIO PIU' NON O RICEVUTO NIENTE DI QUELLO CHE O VISTO SCRITTO UNA PREGHIRA SE FOSSE POSSIBILE VORREI UNA CASA AL MARE A BRINDISI CHE ASPETTO DA 17 ANNI IL MIO CUORE E MALATO IN + UN ANOMALIA DALLA NASCITA E ABITO AL 5 PIANO IL SOLE C'E L'O QUANDO SORGE E AL TRAMONTO E IO STO MALE--- POI UN LAVORO A BRINDISI A MIO FIGLIO DI 24 ANNI LUI SA FARE DI TUTTO AI RISTORANTI CUOCO PIZZERIA E PANIFICIO MI DARESTI LA VITA ALMENO 1 REALIZATO CHE PER L'ATRO SPOSTA LE CHIEDEVO UN FERRAMENTA DA 17 ANNI MA PER ME E SEMPRE LO 000000000000000000000000

  • [1] IBM 1401 Symbolic Programming Systems: SPS-1 and SPS-2, C20-1480-0
  • "1401s I have known" by Tom Van Vleck includes a description of an operating environment including 1401 SPS machines.
  • Gary Mokotoff Collection of IBM 1401 Program Listings, 1959-1961


Stub icon

This programming-language-related article is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=IBM_1401_Symbolic_Programming_System&oldid=552958980"