About: Input/Output Control System

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Input/Output Control System (IOCS) is any of several packages on early IBM entry-level and mainframe computers that provided low level access to records on peripheral equipment. IOCS provides functionality similar to 1960s packages from other vendors, e.g., File Control Processor (FCP) in RCA 3301 Realcom Operating System, GEFRC in GECOS, and to the later Record Management Services (RMS) in DEC VAX/VMS (later OpenVMS.) In some cases IOCS was designed to coexist with Simultaneous Peripheral Operations On-line (SPOOL) software.

Attributes	Values
rdfs:label	Input/Output Control System (en)
rdfs:comment	Input/Output Control System (IOCS) is any of several packages on early IBM entry-level and mainframe computers that provided low level access to records on peripheral equipment. IOCS provides functionality similar to 1960s packages from other vendors, e.g., File Control Processor (FCP) in RCA 3301 Realcom Operating System, GEFRC in GECOS, and to the later Record Management Services (RMS) in DEC VAX/VMS (later OpenVMS.) In some cases IOCS was designed to coexist with Simultaneous Peripheral Operations On-line (SPOOL) software. (en)
dcterms:subject	IBM operating systems System software IBM mainframe operating systems IBM 1400 series IBM 700/7000 series
Wikipage page ID	27463736 (xsd:integer)
Wikipage revision ID	1070317461 (xsd:integer)
Link from a Wikipage to another Wikipage	Resident monitor Sharp IOCS McGraw-Hill S/360 Low-level programming language MIT Press Spooling BDOS IBM operating systems Mainframe computer Record Management Services System software IBM mainframe operating systems Digital Equipment Corporation Autocoder IBM 1400 series IBM 700/7000 series BIOS DOS/360 IBM IBM 7070 OpenVMS Operating system Macro instruction IBM 1401 IBM 1410 IBM 705 IBM 7080 IBM 7090 Record-oriented filesystem Z/VSE IBM Systems Journal VAX/VMS Assembler language GECOS Prentice-Hall Addison Wesley dbr:Logical_IOCS dbr:Physical_IOCS
Link from a Wikipage to an external page	http://www.psexam.com/Notes-for-Computer-Science/operating-systems-history-of-operating-system-article.html https://studentstars.files.wordpress.com/2014/07/chssc_day4.pdf http://www.bitsavers.org/pdf/rca/3301/94-06-000_3301_Realcom_Training_Man_Nov64.pdf http://www.osdata.com/kind/history.htm http://www.soe.ucsc.edu/classes/cmpe080h/Fall09 https://archive.org/details/ibms360early370s0000pugh/page/295 https://archive.org/details/ibmsearlycompute00bash/page/362 https://archive.org/details/iodesigndatamana00free/page/3 https://archive.org/details/logicaldesignofo00shaw https://archive.org/details/operatingsystems0000lori/page/74 https://archive.org/details/operatingsystems00katz/page/98 https://web.archive.org/web/20100612051009/http:/www.soe.ucsc.edu/classes/cmpe080h/Fall09/
sameAs	Input/Output Control System Input/Output Control System Input/Output Control System Input/Output Control System
dbp:wikiPageUsesTemplate	dbt:Anchor dbt:Cite_book dbt:Cite_journal dbt:Cite_web dbt:Efn dbt:Notelist dbt:Reflist dbt:Rp dbt:Short_description dbt:Use_dmy_dates dbt:Pre
cs1-dates	y (en)
date	August 2020 (en)
has abstract	Input/Output Control System (IOCS) is any of several packages on early IBM entry-level and mainframe computers that provided low level access to records on peripheral equipment. IOCS provides functionality similar to 1960s packages from other vendors, e.g., File Control Processor (FCP) in RCA 3301 Realcom Operating System, GEFRC in GECOS, and to the later Record Management Services (RMS) in DEC VAX/VMS (later OpenVMS.) Computers in the 1950s and 1960s typically dealt with data that were organized into records either by the nature of the media, e.g., lines of print, or by application requirements. IOCS was intended to allow Assembler language programmers to read and write records without having to worry about the details of the various devices or the blocking of logical records into physical records. IOCS provided the run time I/O support for several compilers. Computers of this era often did not have operating systems in the modern sense. Application programs called IOCS routines in a resident monitor, or included macro instructions that expanded to IOCS routines. In some cases IOCS was designed to coexist with Simultaneous Peripheral Operations On-line (SPOOL) software. The level of access is at a higher level than that provided by BIOS and BDOS in the PC world; in fact, IOCS has no support for character-oriented I/O, primarily because the systems for which it was designed didn't support it. Versions of IOCS existed for the IBM 705 III, 1401/1440/1460, 1410/7010, 7070/7072/7074, 7080 and 7040/7044/7090/7094. These systems heavily influenced the data management components of the operating systems for the System/360; the name IOCS was carried through in DOS/360 through z/VSE, with a distinction between (LIOCS) and (PIOCS). Although some technical details and nomenclature are different among the various IOCS packages, the fundamental concepts are the same. For concreteness, the discussion and examples in this article will mostly be in terms of 7070 IOCS. Also, multiple continuation lines will be shown as ellipses (...) when they don't serve to illustrate the narrative. (en)
prov:wasDerivedFrom	wikipedia-en:Input/Output_Control_System?oldid=1070317461&ns=0
page length (characters) of wiki page	14176 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Input/Output_Control_System
is Link from a Wikipage to another Wikipage of	Resident monitor Device file LIOCS Timeline of United States inventions (1946–1991) IOCS (IBM) Autocoder BIOS IBM IOCS IBM 1440 IBM System/360 Model 20 OS/360 and successors IOS (disambiguation) IBM Basic Programming Support Record-oriented filesystem PIOCS IOCS
is Wikipage redirect of	LIOCS IOCS (IBM) IBM IOCS

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