GB1189947A - Improvements in or relating to apparatus for Performing Multiplication - Google Patents

Improvements in or relating to apparatus for Performing Multiplication

Info

Publication number
GB1189947A
GB1189947A GB1487068A GB1487068A GB1189947A GB 1189947 A GB1189947 A GB 1189947A GB 1487068 A GB1487068 A GB 1487068A GB 1487068 A GB1487068 A GB 1487068A GB 1189947 A GB1189947 A GB 1189947A
Authority
GB
United Kingdom
Prior art keywords
multiplier
zero
byte
multiples
registers
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
GB1487068A
Other languages
English (en)
Inventor
Frank Tsui
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 GB1189947A publication Critical patent/GB1189947A/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
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/498—Computations with decimal numbers radix 12 or 20. using counter-type accumulators
    • G06F7/4983—Multiplying; Dividing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Complex Calculations (AREA)
  • Executing Machine-Instructions (AREA)
GB1487068A 1967-04-15 1968-03-28 Improvements in or relating to apparatus for Performing Multiplication Expired GB1189947A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ0033453 1967-04-15

Publications (1)

Publication Number Publication Date
GB1189947A true GB1189947A (en) 1970-04-29

Family

ID=7204768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1487068A Expired GB1189947A (en) 1967-04-15 1968-03-28 Improvements in or relating to apparatus for Performing Multiplication

Country Status (7)

Country Link
BE (1) BE712000A (https=)
CH (1) CH467487A (https=)
ES (1) ES352681A1 (https=)
FR (1) FR1557325A (https=)
GB (1) GB1189947A (https=)
NL (1) NL6805308A (https=)
SE (1) SE377729B (https=)

Also Published As

Publication number Publication date
CH467487A (de) 1969-01-15
FR1557325A (https=) 1969-02-14
BE712000A (https=) 1968-07-15
SE377729B (https=) 1975-07-21
NL6805308A (https=) 1968-10-16
DE1549465A1 (de) 1971-02-18
DE1549465B2 (de) 1972-11-30
ES352681A1 (es) 1969-07-16

Similar Documents

Publication Publication Date Title
GB1063014A (en) Improvements in or relating to electronic digital computers
GB1020940A (en) Multi-input arithmetic unit
JPS6256536B2 (https=)
GB1385215A (en) Electronic digital multipliers
KR890015121A (ko) 나눗셈연산장치
GB1049689A (en) Improvements in or relating to data processing systems
GB1078175A (en) High speed divider for a digital computer
GB1111960A (en) Data processing machine
GB1329272A (en) Arithmetical multiplying systems
GB968546A (en) Electronic data processing apparatus
GB1061545A (en) Arithmetic section
GB1105694A (en) Calculating machine
GB1064518A (en) Electronic four-rule arithmetic unit
GB1189947A (en) Improvements in or relating to apparatus for Performing Multiplication
GB1177608A (en) Apparatus for Performing Division.
GB1099340A (en) Multiplier circuit
GB1172845A (en) Improvements in or relating to Calculating Machines
GB1347832A (en) Dividing device for normalizing and dividing decimal numbers
GB1189148A (en) Computer
GB1053686A (https=)
GB1068105A (en) Binary to decimal conversion apparatus
US3251983A (en) Means for readily doubling or halving contents of register stages
Cohn A computation of some bi-quadratic class numbers
GB1293964A (en) Improvements in and relating to digital data processing apparatus
US2933250A (en) Digital computing engines

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee