IT972711B - Dsipositivo di elaborazione digi tale in particolare per piccoli calcolatori - Google Patents

Dsipositivo di elaborazione digi tale in particolare per piccoli calcolatori

Info

Publication number
IT972711B
IT972711B IT33346/72A IT3334672A IT972711B IT 972711 B IT972711 B IT 972711B IT 33346/72 A IT33346/72 A IT 33346/72A IT 3334672 A IT3334672 A IT 3334672A IT 972711 B IT972711 B IT 972711B
Authority
IT
Italy
Prior art keywords
dspositive
digital processing
small computers
computers
small
Prior art date
Application number
IT33346/72A
Other languages
English (en)
Italian (it)
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
Application granted granted Critical
Publication of IT972711B publication Critical patent/IT972711B/it

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)
IT33346/72A 1971-12-24 1972-12-21 Dsipositivo di elaborazione digi tale in particolare per piccoli calcolatori IT972711B (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT972711B true IT972711B (it) 1974-05-31

Family

ID=14384331

Family Applications (1)

Application Number Title Priority Date Filing Date
IT33346/72A IT972711B (it) 1971-12-24 1972-12-21 Dsipositivo di elaborazione digi tale in particolare per piccoli calcolatori

Country Status (8)

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

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 (de) * 1969-12-15 1975-11-26

Also Published As

Publication number Publication date
FR2165625A5 (de) 1973-08-03
JPS5219746B2 (de) 1977-05-30
US3813623A (en) 1974-05-28
JPS4871154A (de) 1973-09-26
CA999084A (en) 1976-10-26
NL7217471A (de) 1973-06-26
DE2262796A1 (de) 1973-07-12
GB1377860A (en) 1974-12-18

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