Autocoder: Difference between revisions

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Latest revision as of 20:05, 25 August 2024

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{{Short description|Computer assembler}}

{{Distinguish|Autoencoder}}

{{About|the IBM Autocoder assemblers|the generic term used in the UK in the 1950s and 1960s for a family of "simplified coding systems"|Autocode}}

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| publisher= IBM Corporation

| url = http://bitsavers.org/pdf/ibm/705/22-6726-1_autocoder_Feb57.pdf

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| publisher = IBM Corporation

| url = http://bitsavers.org/pdf/ibm/1410/C28-0309-1_1410_autocoder.pdf

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| publisher = IBM Corporation

| url = http://bitsavers.org/pdf/ibm/1410/C28-0326-2_1410_OS_Autocoder.pdf

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}}</ref>

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| publisher= IBM Corporation

| url = http://bitsavers.org/pdf/ibm/7070/C28-6102-1_7070_Four_Tape_Autocoder_Apr61.pdf

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<ref>{{cite manual

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| publisher= IBM Corporation

| url = http://bitsavers.org/pdf/ibm/7070/C28-6121-0_7070autocoder_61.pdf

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[[IBM 7080]],

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| publisher= IBM Corporation

| url = http://bitsavers.org/pdf/ibm/7070/C28-6121-0_7070autocoder_61.pdf

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}}</ref>

and the [[IBM 1400 series]].<ref>7010: Weik 1964, p. 0160; 7030:{{cite web

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| url = http://ed-thelen.org/comp-hist/BRL61-ibm7070.html

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}}; 7080: [http://www.research.ibm.com/journal/sj/052/ibmsj0502B.pdf]; 1400 series: [https://web.archive.org/web/20100820215557/http://www-03.ibm.com/ibm/history/exhibits/dpd50/dpd50_chronology2.html], {{cite book

| title = 1410 Autocoder

| url = http://bitsavers.org/pdf/ibm/1410/C28-0309-1_1410_autocoder.pdf

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| publisher= IBM Corporation

| url = http://bitsavers.org/pdf/ibm/1401/C24-3319-0_Autocoder_on_Tape_Laguage_Specifications_and_Operating_Procedures_Nov64.pdf

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| publisher= IBM Corporation

| url = http://bitsavers.org/pdf/ibm/1401/C24-3258-2_Disk_Autocoder_Specifications_Apr66.pdf

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}}

</ref> is the most well known Autocoder, undoubtedly due in part to the general success of that series of machines. Autocoder was the primary language of this computer, and its macro capabilities facilitated use of the [[Input/Output Control System]] which eased the programming burden.

<ref>{{cite book |last1=IBM Corporation |title=Executive Guide to the IBM 1440 Data Processing System |url=http://archive.computerhistory.org/resources/text/IBM/IBM.1440.1962.102646251.pdf |accessdate=Mar 8, 2020}}</ref><ref>Solomon 1993, p. 8</ref><ref>{{cite web|url=http://hopl.murdoch.edu.au/showlanguage2.prx?exp%3D3872 |title=ArchivedThe copyEncyclopedia of Computer Languages |accessdate=2007-03-18 |url-status=dead |archiveurl=https://web.archive.org/web/20070917100201/http://hopl.murdoch.edu.au/showlanguage2.prx?exp=3872 |archivedate=2007-09-17 }}.</ref> Autocoder also had the ability to process code written for SPS.

The 1401 was available in six memory configurations, with 1400, 2000, 4000, 8000, 12000, or 16000 six-bit characters. The 8000-character model was the minimum needed to run the full Autocoder assembler application, including IOCS. However a language subset assembler was available for use with as little as 1400 memory positions. A loadable [[object file]], on punched cards or magnetic tape, could be produced on an 8000-character model which could then be run on a 4000-character machine. The limited language subset only processed punched cards and required 4 passes with intermediate punched card outputs.

==Influence==