{"id":"https://openalex.org/W2079966992","doi":"https://doi.org/10.1145/1499402.1499444","title":"Using LSI processor bit-slices to build a PDP-11","display_name":"Using LSI processor bit-slices to build a PDP-11","publication_year":1977,"publication_date":"1977-01-01","ids":{"openalex":"https://openalex.org/W2079966992","doi":"https://doi.org/10.1145/1499402.1499444","mag":"2079966992"},"language":"en","primary_location":{"id":"doi:10.1145/1499402.1499444","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1499402.1499444","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the June 13-16, 1977, national computer conference on - AFIPS '77","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5059144577","display_name":"Thomas McWilliams","orcid":"https://orcid.org/0000-0002-4183-420X"},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"T. M. McWilliams","raw_affiliation_strings":["Carnegie-Mellon University, Pittsburgh, Pennsylvania","Carnegie Mellon Univ, Pittsburgh, Pennsylvania#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Carnegie-Mellon University, Pittsburgh, Pennsylvania","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"Carnegie Mellon Univ, Pittsburgh, Pennsylvania#TAB#","institution_ids":["https://openalex.org/I74973139"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080259213","display_name":"Samuel H. Fuller","orcid":"https://orcid.org/0000-0002-0298-4504"},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"S. H. Fuller","raw_affiliation_strings":["Carnegie-Mellon University, Pittsburgh, Pennsylvania","Carnegie Mellon Univ, Pittsburgh, Pennsylvania#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Carnegie-Mellon University, Pittsburgh, Pennsylvania","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"Carnegie Mellon Univ, Pittsburgh, Pennsylvania#TAB#","institution_ids":["https://openalex.org/I74973139"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5081435436","display_name":"Will Sherwood","orcid":null},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"W. H. Sherwood","raw_affiliation_strings":["Carnegie-Mellon University, Pittsburgh, Pennsylvania","Carnegie Mellon Univ, Pittsburgh, Pennsylvania#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Carnegie-Mellon University, Pittsburgh, Pennsylvania","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"Carnegie Mellon Univ, Pittsburgh, Pennsylvania#TAB#","institution_ids":["https://openalex.org/I74973139"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.26552463,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"243","last_page":"243"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.9983000159263611,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.9983000159263611,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10904","display_name":"Embedded Systems Design Techniques","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10829","display_name":"Interconnection Networks and Systems","score":0.9847000241279602,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8085288405418396},{"id":"https://openalex.org/keywords/32-bit","display_name":"32-bit","score":0.6320084929466248},{"id":"https://openalex.org/keywords/reduced-instruction-set-computing","display_name":"Reduced instruction set computing","score":0.5587946772575378},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.5561095476150513},{"id":"https://openalex.org/keywords/16-bit","display_name":"16-bit","score":0.5522744059562683},{"id":"https://openalex.org/keywords/8-bit","display_name":"8-bit","score":0.5092576742172241},{"id":"https://openalex.org/keywords/microcomputer","display_name":"Microcomputer","score":0.49559223651885986},{"id":"https://openalex.org/keywords/bit","display_name":"Bit (key)","score":0.49196407198905945},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.4766029715538025},{"id":"https://openalex.org/keywords/computer-architecture","display_name":"Computer architecture","score":0.33963465690612793},{"id":"https://openalex.org/keywords/instruction-set","display_name":"Instruction set","score":0.2989349067211151}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8085288405418396},{"id":"https://openalex.org/C75695347","wikidata":"https://www.wikidata.org/wiki/Q225147","display_name":"32-bit","level":2,"score":0.6320084929466248},{"id":"https://openalex.org/C126298526","wikidata":"https://www.wikidata.org/wiki/Q189376","display_name":"Reduced instruction set computing","level":3,"score":0.5587946772575378},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.5561095476150513},{"id":"https://openalex.org/C33652231","wikidata":"https://www.wikidata.org/wiki/Q194368","display_name":"16-bit","level":2,"score":0.5522744059562683},{"id":"https://openalex.org/C187919765","wikidata":"https://www.wikidata.org/wiki/Q270159","display_name":"8-bit","level":2,"score":0.5092576742172241},{"id":"https://openalex.org/C132090242","wikidata":"https://www.wikidata.org/wiki/Q32738","display_name":"Microcomputer","level":3,"score":0.49559223651885986},{"id":"https://openalex.org/C117011727","wikidata":"https://www.wikidata.org/wiki/Q1278488","display_name":"Bit (key)","level":2,"score":0.49196407198905945},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.4766029715538025},{"id":"https://openalex.org/C118524514","wikidata":"https://www.wikidata.org/wiki/Q173212","display_name":"Computer architecture","level":1,"score":0.33963465690612793},{"id":"https://openalex.org/C202491316","wikidata":"https://www.wikidata.org/wiki/Q272683","display_name":"Instruction set","level":2,"score":0.2989349067211151},{"id":"https://openalex.org/C165005293","wikidata":"https://www.wikidata.org/wiki/Q1074500","display_name":"Chip","level":2,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1499402.1499444","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1499402.1499444","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the June 13-16, 1977, national computer conference on - AFIPS '77","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W1526136018","https://openalex.org/W2046700619","https://openalex.org/W1847510165","https://openalex.org/W1464584969","https://openalex.org/W2375524523","https://openalex.org/W2393594189","https://openalex.org/W2783212533","https://openalex.org/W1972957948","https://openalex.org/W2337986094","https://openalex.org/W2095596032"],"abstract_inverted_index":{"In":[0],"this":[1],"article":[2],"we":[3],"give":[4],"the":[5,10,17,37,44,62,65,69,72],"design":[6,45],"and":[7,67],"evaluation":[8],"of":[9,16,46,64,71],"CMU-11:":[11],"a":[12],"fully":[13],"operational":[14],"implementation":[15],"PDP-11":[18],"computer":[19],"architecture":[20],"built":[21],"with":[22],"Intel":[23],"3000":[24],"Schottky":[25],"bipolar":[26],"microcomputer":[27],"bit-slices.":[28],"This":[29],"project":[30],"was":[31],"initiated":[32],"to":[33],"test":[34],"in":[35],"detail":[36],"claims":[38],"that":[39],"LSI":[40],"processor":[41],"bit-slices":[42],"simplify":[43],"microprogrammed":[47],"processors.":[48],"The":[49],"CMU-11":[50],"executes":[51],"approximately":[52],"240,000":[53],"instructions":[54],"per":[55],"second,":[56],"which":[57],"is":[58],"about":[59],"63":[60],"percent":[61],"speed":[63,70],"PDP-11/40":[66],"twice":[68],"LSI-11.":[73]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
