CA999084A - Digital processing system - Google Patents

Digital processing system

Info

Publication number
CA999084A
CA999084A CA159,651A CA159651A CA999084A CA 999084 A CA999084 A CA 999084A CA 159651 A CA159651 A CA 159651A CA 999084 A CA999084 A CA 999084A
Authority
CA
Canada
Prior art keywords
processing system
digital processing
digital
processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA159,651A
Other versions
CA159651S (en
Inventor
Takao Tsuiki
Kosei Nomiya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to CA246,007A priority Critical patent/CA1000866A/en
Application granted granted Critical
Publication of CA999084A publication Critical patent/CA999084A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/492—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination
    • G06F7/493—Computations with decimal numbers radix 12 or 20. using a binary weighted representation within each denomination the representation being the natural binary coded representation, i.e. 8421-code
    • G06F7/494—Adding; Subtracting
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Complex Calculations (AREA)
CA159,651A 1971-12-24 1972-12-21 Digital processing system Expired CA999084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA246,007A CA1000866A (en) 1971-12-24 1976-02-18 Digital processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46104579A JPS5219746B2 (en) 1971-12-24 1971-12-24

Publications (1)

Publication Number Publication Date
CA999084A true CA999084A (en) 1976-10-26

Family

ID=14384331

Family Applications (1)

Application Number Title Priority Date Filing Date
CA159,651A Expired CA999084A (en) 1971-12-24 1972-12-21 Digital processing system

Country Status (8)

Country Link
US (1) US3813623A (en)
JP (1) JPS5219746B2 (en)
CA (1) CA999084A (en)
DE (1) DE2262796A1 (en)
FR (1) FR2165625A5 (en)
GB (1) GB1377860A (en)
IT (1) IT972711B (en)
NL (1) NL7217471A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172288A (en) * 1976-03-08 1979-10-23 Motorola, Inc. Binary or BCD adder with precorrected result

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872107A (en) * 1951-05-16 1959-02-03 Monroe Calculating Machine Electronic computer
GB924396A (en) * 1959-10-27 1963-04-24 Gen Electric Automatic data accumulator
US3249745A (en) * 1962-01-09 1966-05-03 Monroe Int Two-register calculator for performing multiplication and division using identical operational steps
US3621219A (en) * 1967-08-15 1971-11-16 Hayakawa Denki Kogyo Kk Arithmetic unit utilizing magnetic core matrix registers
US3584206A (en) * 1968-02-29 1971-06-08 Gen Electric Serial bcd adder/subtracter/complementer utilizing interlaced data
US3571582A (en) * 1968-02-29 1971-03-23 Gen Electric Serial bcd adder/subtracter utilizing interlaced data
JPS5036542B1 (en) * 1969-12-15 1975-11-26

Also Published As

Publication number Publication date
IT972711B (en) 1974-05-31
FR2165625A5 (en) 1973-08-03
JPS5219746B2 (en) 1977-05-30
US3813623A (en) 1974-05-28
JPS4871154A (en) 1973-09-26
NL7217471A (en) 1973-06-26
DE2262796A1 (en) 1973-07-12
GB1377860A (en) 1974-12-18

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