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Subject Item
dbr:Byte_Sieve
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dbr:Systems_Programming_Language
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schema:Language wikidata:Q315 owl:Thing dbo:Language wikidata:Q9143 dbo:ProgrammingLanguage
rdfs:label
Systems Programming Language
rdfs:comment
Systems Programming Language, often shortened to SPL but sometimes known as SPL/3000, was a procedurally-oriented programming language written by Hewlett-Packard for the HP 3000 minicomputer line and first introduced in 1972. SPL was used to write the HP 3000's primary operating system, Multi-Programming Executive (MPE). Similar languages on other platforms were generically referred to as system programming languages, confusing matters.
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Systems Programming Language
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Systems Programming Language
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4888909
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1116766938
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dbr:JOVIAL dbr:Operating_system n4:360 dbr:Core_memory dbr:Zilog_Z80 dbr:Executive_Systems_Problem_Oriented_Language dbr:Multiprogramming dbr:Bit_fiddling dbr:Dangling_pointer dbr:Integrated_circuit dbr:HP_2100 dbr:IBM dbr:Big_endian dbr:Direct_memory_access dbr:Directive_(programming) dbr:Stack_machine dbr:HP_3000 dbr:Imperative_programming dbr:High-level_language dbr:Computer_bus dbr:ALGOL dbr:Multi-Programming_Executive dbr:Henry_Baker_(computer_scientist) dbr:ALGOL_60 dbr:Compilers dbc:HP_software dbr:Integer_BASIC dbr:Burroughs_B5000 dbr:Batch_mode dbr:Union_Carbide dbr:Action!_(programming_language) dbr:Burroughs_Corporation dbr:BCPL dbr:Atari_8-bit_family dbc:Systems_programming_languages dbr:Weakly_typed dbr:Atari_BASIC dbr:HP_9000 dbr:System_programming_language dbr:PL360 dbr:Pascal_(programming_language) dbr:Minicomputer dbr:Time_sharing dbr:BASIC_programming_language dbr:Procedural_programming dbr:Least_significant_bit dbr:Palo_Alto_TinyBASIC dbr:Pascal_programming_language dbr:Mainframe dbr:Systems_programming_language dbr:Structured_programming dbr:Modula-2 dbr:Code_maintenance dbr:Compiler_directive dbr:C_programming_language dbr:PA-RISC dbr:Emulator dbr:HP_Time-Shared_BASIC dbr:Microcomputer dbr:Xerox_Alto dbr:North_Star_BASIC dbr:Programming_language n21:performance_ratio dbr:Hewlett-Packard dbr:Real-time_computing dbr:Black_box
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dbp:influenced
ZSPL, Micro-SPL, Action!
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Systems Programming Language, often shortened to SPL but sometimes known as SPL/3000, was a procedurally-oriented programming language written by Hewlett-Packard for the HP 3000 minicomputer line and first introduced in 1972. SPL was used to write the HP 3000's primary operating system, Multi-Programming Executive (MPE). Similar languages on other platforms were generically referred to as system programming languages, confusing matters. Originally known as Alpha Systems Programming Language, named for the development project that produced the 3000-series, SPL was designed to take advantage of the Alpha's stack-based processor design. It is patterned on ESPOL, a similar ALGOL-derived language used by the Burroughs B5000 mainframe systems, which also influenced a number of 1960s languages like PL360 and JOVIAL. Through the mid-1970s, the success of the HP systems produced a number of SPL offshoots. Examples include ZSPL for the Zilog Z80 processor, and Micro-SPL for the Xerox Alto. The later inspired Action! for the Atari 8-bit family, which was fairly successful. The latter more closely followed Pascal syntax, losing some of SPL's idiosyncrasies. SPL was widely used during the lifetime of the original integrated circuit-based versions HP 3000 platform. In the 1980s, the HP 3000 and MPE were reimplemented in an emulator running on the PA-RISC-based HP 9000 platforms. HP promoted Pascal as the favored system language on PA-RISC and did not provide an SPL compiler. This caused code maintenance concerns, and 3rd party SPL compilers were introduced to fill this need.
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