GB875695A - Data synchronizer - Google Patents

Data synchronizer

Info

Publication number
GB875695A
GB875695A GB41505/58A GB4150558A GB875695A GB 875695 A GB875695 A GB 875695A GB 41505/58 A GB41505/58 A GB 41505/58A GB 4150558 A GB4150558 A GB 4150558A GB 875695 A GB875695 A GB 875695A
Authority
GB
United Kingdom
Prior art keywords
units
access
computer
unit
storage device
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
GB41505/58A
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 GB875695A publication Critical patent/GB875695A/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
    • G06F7/52—Multiplying; Dividing
    • G06F7/523—Multiplying only
    • G06F7/527—Multiplying only in serial-parallel fashion, i.e. one operand being entered serially and the other in parallel
    • G06F7/5272—Multiplying only in serial-parallel fashion, i.e. one operand being entered serially and the other in parallel with row wise addition of partial products
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/76—Architectures of general purpose stored program computers
    • G06F15/78—Architectures of general purpose stored program computers comprising a single central processing unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computational Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Computer And Data Communications (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

875,695. Digital electric-calculating apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 23, 1958 [Dec. 26, 1957], No. 41505/58. Drawings to Specification. Class 106 (1). A data transmission system for regulating the transfer of information between an addresssable storage device having a plurality of locations for the storage of information and a plurality of peripheral units operable in a synchronous modes with respect to each other and to the said storage device comprises a plurality of control units each connectable to a peripheral unit and operable to transfer information synchronously between such unit and said storage device in which each control unit includes means for requesting access to said storage device and said plurality of control units are adapted to co-operate to establish an order of transfer of information in accordance with a pattern of requests for access to said storage device. A data processing system comprising an I.B.M. 701 computer as described in Proc. I.R.E., Vol. 41, pages 1262-1294, but using a magnetic core matrix as described in Specification 850,322 in place of the original C.R.T. storage, magnetic tape units, recordcard readers, and printers together with a known input/output buffering system is described and in particular a system of priorities is described to determine which of a number of peripheral units (e.g. tape units, printers, card readers, &c.) is to be given access with the main store (the core matrix) of the computer when several of them simultaneously issue requests for access. The magnetic tape units use known double-gap reading/writing heads, together with an error detecting arrangement as described in Specification 875,694, which is referred to. In the system described a large number of peripheral units are connected to the computer via six data synchronizer units and which of the six data synchronizer units is given access to the computer is determined by a priority unit which functions according to the following rules: The six data synchronizer units DSU1-DSU6 are divided into two main groups DSU1-DSU3 and DSU4-DSU6 which are each divided into two sub-groups of one and two units respectively. If a request for access to the computer is made by a single data synchronizer unit then this unit is given immediate access. If requests for access to the computer are made simultaneously by two data synchronizer units, one being in each of the main groups, then that unit belonging to the group which last had access to the computer is given immediate access and the other unit has to wait. This system of priority-that the last set of units to have access is given priority in the event of subsequent simultaneous requests for access-is applied as between two sub-groups of the same main group and as between the units of the same sub-group. In this way in the event of any number of simultaneous requests there is a unique order in which they will be granted.
GB41505/58A 1957-12-26 1958-12-23 Data synchronizer Expired GB875695A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US705445A US3036773A (en) 1957-12-26 1957-12-26 Indirect addressing in an electronic data processing machine
US705442A US3048333A (en) 1957-12-26 1957-12-26 Fast multiply apparatus in an electronic digital computer

Publications (1)

Publication Number Publication Date
GB875695A true GB875695A (en) 1961-08-23

Family

ID=27107502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41505/58A Expired GB875695A (en) 1957-12-26 1958-12-23 Data synchronizer

Country Status (2)

Country Link
US (2) US3036773A (en)
GB (1) GB875695A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243781A (en) * 1961-10-06 1966-03-29 Sperry Rand Corp Digital communication system
US3247488A (en) * 1961-03-24 1966-04-19 Sperry Rand Corp Digital computing system
US3251040A (en) * 1961-12-01 1966-05-10 Sperry Rand Corp Computer input-output system
CN116048771A (en) * 2022-08-15 2023-05-02 荣耀终端有限公司 Resource scheduling method and related equipment

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB942153A (en) * 1961-01-26 1963-11-20 Int Computers & Tabulators Ltd Improvements in or relating to data processing apparatus
US3222649A (en) * 1961-02-13 1965-12-07 Burroughs Corp Digital computer with indirect addressing
NL282242A (en) * 1961-08-17
GB993879A (en) * 1961-11-16
US3258748A (en) * 1962-01-08 1966-06-28 Fntan, fntin
US3311739A (en) * 1963-01-10 1967-03-28 Ibm Accumulative multiplier
US3311887A (en) * 1963-04-12 1967-03-28 Ibm File memory system with key to address transformation apparatus
US3311888A (en) * 1963-04-12 1967-03-28 Ibm Method and apparatus for addressing a memory
US3774166A (en) * 1963-09-30 1973-11-20 F Vigliante Short-range data processing transfers
US3315233A (en) * 1963-10-01 1967-04-18 Ibm Self-addressing and self-assigning memory system
US3299261A (en) * 1963-12-16 1967-01-17 Ibm Multiple-input memory accessing apparatus
FR1404464A (en) * 1964-03-17 1965-07-02 Bull Sa Machines Data storage and processing system
US4611307A (en) * 1964-06-26 1986-09-09 Hewlett-Packard Company Function analyzing
US3343138A (en) * 1964-10-07 1967-09-19 Bell Telephone Labor Inc Data processor employing double indexing
US3389380A (en) * 1965-10-05 1968-06-18 Sperry Rand Corp Signal responsive apparatus
GB1115551A (en) * 1965-11-11 1968-05-29 Automatic Telephone & Elect Improvements in or relating to data processing systems
US3412382A (en) * 1965-11-26 1968-11-19 Massachusetts Inst Technology Shared-access data processing system
US3454933A (en) * 1966-06-27 1969-07-08 Gen Electric Data processing system
US3454931A (en) * 1966-06-27 1969-07-08 Gen Electric Data processing system including address development apparatus
US3440618A (en) * 1967-07-07 1969-04-22 Bell Telephone Labor Inc Information processing system
NL6815506A (en) * 1968-10-31 1970-05-04
US4038640A (en) * 1970-12-28 1977-07-26 Said Micro Computer Inc. By Said Barry T. Lee, Ralph V. Cole, Gunther W. Wimmer Interactive control system
US3760370A (en) * 1971-04-26 1973-09-18 Tektronix Inc Calculator with a number processing system
USH1970H1 (en) 1971-07-19 2001-06-05 Texas Instruments Incorporated Variable function programmed system
US4326265A (en) * 1971-07-19 1982-04-20 Texas Instruments Incorporated Variable function programmed calculator
US4471460A (en) * 1977-12-02 1984-09-11 Texas Instruments Incorporated Variable function programmed system
US4476541A (en) * 1977-12-02 1984-10-09 Texas Instruments Incorporated Variable function programmed system
CN108182049B (en) * 2018-03-14 2023-04-25 桂林电子科技大学 Binary optical full adder based on micro-ring resonator

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL152265B (en) * 1949-03-14 Snam Progetti PROCESS FOR THE PREPARATION OF ZINC SALTS FROM DITHIOPHOSPHORIC ACID DIESTERS.
NL94419C (en) * 1949-06-22
NL100860C (en) * 1950-05-04
BE503357A (en) * 1950-05-18
US2815168A (en) * 1951-11-14 1957-12-03 Hughes Aircraft Co Automatic program control system for a digital computer
NL130448C (en) * 1952-12-22
GB745833A (en) * 1953-03-17 1956-03-07 Nat Res Dev Digital computing engines
GB796404A (en) * 1953-08-27 1958-06-11 Nat Res Dev Improvements in or relating to electronic digital computing machines
US2792991A (en) * 1953-11-23 1957-05-21 Ibm Electronic commutator for calculators
US2914248A (en) * 1956-03-07 1959-11-24 Ibm Program control for a data processing machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247488A (en) * 1961-03-24 1966-04-19 Sperry Rand Corp Digital computing system
US3243781A (en) * 1961-10-06 1966-03-29 Sperry Rand Corp Digital communication system
US3251040A (en) * 1961-12-01 1966-05-10 Sperry Rand Corp Computer input-output system
CN116048771A (en) * 2022-08-15 2023-05-02 荣耀终端有限公司 Resource scheduling method and related equipment
CN116048771B (en) * 2022-08-15 2023-10-20 荣耀终端有限公司 Resource scheduling method and related equipment

Also Published As

Publication number Publication date
US3048333A (en) 1962-08-07
US3036773A (en) 1962-05-29

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