GB895248A - Improvements relating to magnetic storage devices - Google Patents

Improvements relating to magnetic storage devices

Info

Publication number
GB895248A
GB895248A GB2535358A GB2535358A GB895248A GB 895248 A GB895248 A GB 895248A GB 2535358 A GB2535358 A GB 2535358A GB 2535358 A GB2535358 A GB 2535358A GB 895248 A GB895248 A GB 895248A
Authority
GB
United Kingdom
Prior art keywords
conductors
core
pulses
state
film
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
GB2535358A
Inventor
George Richard Hoffman
David Aspinall
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB2535358A priority Critical patent/GB895248A/en
Publication of GB895248A publication Critical patent/GB895248A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/04—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using storage elements having cylindrical form, e.g. rod, wire
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/06—Arrangements for interconnecting storage elements electrically, e.g. by wiring
    • G11C5/08—Arrangements for interconnecting storage elements electrically, e.g. by wiring for interconnecting magnetic elements, e.g. toroidal cores
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/16—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using saturable magnetic devices

Abstract

895,248. Magnetic storage devices. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 21, 1959 [Aug. 7, 1958], No. 25353/58. Class 38 (2). [Also in Group XXXIX] A thin anisotropic magnetic film core such as Coo, which may be cylindrical (Fig. 1) or flat (Fig. 3) is set in a neutral remanent magnetization state by a sufficiently large pulse in an adjacent conductor such as row conductor Yo arranged parallel to its direction of easy magnetization to produce a magnetic field at rightangles to that direction. The core is thus prepared for the writing-in of information by a small signal in a column conductor such as Xo of a magnitude insufficient to disturb the state of a similar core such as Co1 in which the remanent magnetization has not been neutralized. The neutralizing and writing pulses may overlap. The matrix arrangement may comprise a single plane film with sets of row and column conductors at the intersections of which information is stored in the film. Read-out by resetting to the neutral state may be by large pulses in the neutralizing conductors such as Yo, large output pulses being obtained. Separate read-out conductors may be provided. Specification 895,247 is referred to.
GB2535358A 1958-08-07 1958-08-07 Improvements relating to magnetic storage devices Expired GB895248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2535358A GB895248A (en) 1958-08-07 1958-08-07 Improvements relating to magnetic storage devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2535358A GB895248A (en) 1958-08-07 1958-08-07 Improvements relating to magnetic storage devices

Publications (1)

Publication Number Publication Date
GB895248A true GB895248A (en) 1962-05-02

Family

ID=10226290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2535358A Expired GB895248A (en) 1958-08-07 1958-08-07 Improvements relating to magnetic storage devices

Country Status (1)

Country Link
GB (1) GB895248A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228304B (en) * 1962-09-18 1966-11-10 Ibm Arrangement for storing binary values
DE1236575B (en) * 1963-09-27 1967-03-16 Ibm Magnetic layer storage
DE1270110B (en) * 1964-01-07 1968-06-12 Ibm Thin film magnetic storage element
DE1295008B (en) * 1963-11-27 1969-05-14 Ibm Thin film memory cell and method of making it

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228304B (en) * 1962-09-18 1966-11-10 Ibm Arrangement for storing binary values
DE1236575B (en) * 1963-09-27 1967-03-16 Ibm Magnetic layer storage
DE1295008B (en) * 1963-11-27 1969-05-14 Ibm Thin film memory cell and method of making it
DE1270110B (en) * 1964-01-07 1968-06-12 Ibm Thin film magnetic storage element

Similar Documents

Publication Publication Date Title
GB863153A (en) Improvements in drivers for magnetic core memory systems
GB902404A (en) Improvements in or relating to data processing equipment
GB895248A (en) Improvements relating to magnetic storage devices
GB939374A (en) Improvements in or relating to data storage devices
GB982678A (en) Magnetic memory cell
GB929611A (en) Arrangement for and method of writing information into magnetic memory elements
GB873627A (en) Information storage device
GB864174A (en) Drive circuits suitable for memory devices of electronic computers
GB781331A (en) Improvements in or relating to intelligence storage devices
GB882771A (en) Improvements in or relating to coincident-current magnetic matrix storage systems
GB783918A (en) Magnetic memory system
GB895835A (en) Improvements in or relating to digital information storage systems
GB1007222A (en) Search memory using longitudinal steering fields
GB968964A (en) Improvements in or relating to magnetic memories
GB1148088A (en) Improvements in or relating to information storage devices
GB930680A (en) Improvements in or relating to magnetic storage systems
GB962721A (en) A control arrangement for matrix stores
GB916909A (en) Parallel interrogation of computer memories
GB1064623A (en) Magnetic data storage system
GB1083065A (en) Improvements relating to a magnetic memory incorporating a film storage device
GB904516A (en) Improvements in information storage apparatus
GB865818A (en) Improvements in or relating to magnetic storage devices
GB1133200A (en) Semi-permanent memory
GB887072A (en) Improvements in or relating to magnetic storage devices
GB1166284A (en) A Large Capacity Ferromagnetic Thin Film Memory Device.