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- Varian_Data_Machines abstract "Varian Data Machines was a division of Varian Associates which sold minicomputers. It entered the market in 1966, but met stiff competition and was bought by Sperry Corporation in 1977.The 620i and 620/L series were parallel, binary 16-bit general-purpose digital computers with core memory expandable to 32,768 words. An 18-bit word length was optionally available. A basic machine cycle took 1.8 microseconds, and the core memory read time was 700 nanoseconds. The computers uses two's complement arithmetic and had four main registers - accumulator A, accumulator extension B, an index register X and a program counter register. Addressing modes were direct, immediate and indexed. The instruction set had more than one hundred artihmetic, logic and control instructions and supported microprogramming. These models used a hardware front panel console that allowed starting and stopping the machine, examining memory and registers and changing memory or registers with front-panel switches. The processor was made with integrated circuit transistor transistor logic from the 7400 series. The system was packaged in a 19 inch rack and used 340 watts of power at 120 V AC. The 620/F was a variation with a faster machine cycle time of 750 nanoseconds. The 620/L 100 was released in 1973. It had a cycle time of 950 nanoseconds and a more compact system chassis than the 620/F. The 70 series had semiconductor memory but also supported core. Various models were released between 1972 and 1977.".
- Varian_Data_Machines wikiPageID "10319110".
- Varian_Data_Machines wikiPageLength "2301".
- Varian_Data_Machines wikiPageOutDegree "11".
- Varian_Data_Machines wikiPageRevisionID "609370083".
- Varian_Data_Machines wikiPageWikiLink 19-inch_rack.
- Varian_Data_Machines wikiPageWikiLink 19_inch_rack.
- Varian_Data_Machines wikiPageWikiLink 7400_series.
- Varian_Data_Machines wikiPageWikiLink Category:Defunct_computer_companies_of_the_United_States.
- Varian_Data_Machines wikiPageWikiLink Core_memory.
- Varian_Data_Machines wikiPageWikiLink Front_panel.
- Varian_Data_Machines wikiPageWikiLink Integrated_circuit.
- Varian_Data_Machines wikiPageWikiLink Magnetic-core_memory.
- Varian_Data_Machines wikiPageWikiLink Minicomputer.
- Varian_Data_Machines wikiPageWikiLink Sperry_Corporation.
- Varian_Data_Machines wikiPageWikiLink Transistor_transistor_logic.
- Varian_Data_Machines wikiPageWikiLink Transistor–transistor_logic.
- Varian_Data_Machines wikiPageWikiLink Twos_complement.
- Varian_Data_Machines wikiPageWikiLink Varian_Associates.
- Varian_Data_Machines wikiPageWikiLinkText "Varian Data Machines".
- Varian_Data_Machines wikiPageWikiLinkText "Varian".
- Varian_Data_Machines hasPhotoCollection Varian_Data_Machines.
- Varian_Data_Machines wikiPageUsesTemplate Template:Ict-company-stub.
- Varian_Data_Machines wikiPageUsesTemplate Template:Other_uses_of.
- Varian_Data_Machines subject Category:Defunct_computer_companies_of_the_United_States.
- Varian_Data_Machines hypernym Division.
- Varian_Data_Machines type Company.
- Varian_Data_Machines type Organisation.
- Varian_Data_Machines type Company.
- Varian_Data_Machines comment "Varian Data Machines was a division of Varian Associates which sold minicomputers. It entered the market in 1966, but met stiff competition and was bought by Sperry Corporation in 1977.The 620i and 620/L series were parallel, binary 16-bit general-purpose digital computers with core memory expandable to 32,768 words. An 18-bit word length was optionally available. A basic machine cycle took 1.8 microseconds, and the core memory read time was 700 nanoseconds.".
- Varian_Data_Machines label "Varian Data Machines".
- Varian_Data_Machines sameAs m.02q89n6.
- Varian_Data_Machines sameAs Q7915750.
- Varian_Data_Machines sameAs Q7915750.
- Varian_Data_Machines wasDerivedFrom Varian_Data_Machines?oldid=609370083.
- Varian_Data_Machines isPrimaryTopicOf Varian_Data_Machines.