GB975958A - Improvements in and relating to arithmetic circuitry - Google Patents

Improvements in and relating to arithmetic circuitry

Info

Publication number
GB975958A
GB975958A GB22583/61A GB2258361A GB975958A GB 975958 A GB975958 A GB 975958A GB 22583/61 A GB22583/61 A GB 22583/61A GB 2258361 A GB2258361 A GB 2258361A GB 975958 A GB975958 A GB 975958A
Authority
GB
United Kingdom
Prior art keywords
trigger
bit
word
circuit
memory
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
GB22583/61A
Other languages
English (en)
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB975958A publication Critical patent/GB975958A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F7/50—Adding; Subtracting
    • G06F7/504—Adding; Subtracting in bit-serial fashion, i.e. having a single digit-handling circuit treating all denominations after each other

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Computing Systems (AREA)
  • Mathematical Optimization (AREA)
  • General Engineering & Computer Science (AREA)
  • Digital Magnetic Recording (AREA)
  • Complex Calculations (AREA)
  • Logic Circuits (AREA)
GB22583/61A 1960-07-11 1961-06-22 Improvements in and relating to arithmetic circuitry Expired GB975958A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42114A US3209131A (en) 1960-07-11 1960-07-11 Computer circuit for performing serial addition and subtraction
DEJ0020205 1961-07-10

Publications (1)

Publication Number Publication Date
GB975958A true GB975958A (en) 1964-11-25

Family

ID=25982313

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22583/61A Expired GB975958A (en) 1960-07-11 1961-06-22 Improvements in and relating to arithmetic circuitry

Country Status (4)

Country Link
US (1) US3209131A (OSRAM)
DE (1) DE1302504B (OSRAM)
GB (1) GB975958A (OSRAM)
NL (1) NL265998A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4380051A (en) * 1980-11-28 1983-04-12 Motorola, Inc. High speed digital divider having normalizing circuitry

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346616A (en) * 1940-05-13 1944-04-11 Ncr Co Multiplying machine
FR963864A (OSRAM) * 1947-03-25 1950-07-24
FR1041729A (fr) * 1951-04-17 1953-10-26 Electronique & Automatisme Sa Perfectionnements aux circuits pour l'addition et la soustraction de nombres
GB738269A (en) * 1952-04-16 1955-10-12 British Tabulating Mach Co Ltd Improvements in or relating to electronic calculating apparatus
FR1077056A (fr) * 1953-03-19 1954-11-04 Electronique & Automatisme Sa Convertisseur algébrique perfectionné
US2962214A (en) * 1955-11-28 1960-11-29 Epsco Inc Function generating apparatus

Also Published As

Publication number Publication date
DE1302504B (OSRAM) 1970-10-22
US3209131A (en) 1965-09-28
NL265998A (OSRAM)

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