GB820645A - Improvements relating to magnetic storage devices - Google Patents
Improvements relating to magnetic storage devicesInfo
- Publication number
- GB820645A GB820645A GB30932/56A GB3093256A GB820645A GB 820645 A GB820645 A GB 820645A GB 30932/56 A GB30932/56 A GB 30932/56A GB 3093256 A GB3093256 A GB 3093256A GB 820645 A GB820645 A GB 820645A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- magnetic storage
- pulses
- input
- storage devices
- 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
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
- G11C11/06—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element
- G11C11/06007—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element using a single aperture or single magnetic closed circuit
- G11C11/06014—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element using a single aperture or single magnetic closed circuit using one such element per bit
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Soft Magnetic Materials (AREA)
Abstract
820,645. Magnetic storage devices. FERRANTI Ltd. Oct. 11, 1956 [Oct. 15, 1955], No. 30932/56. Class 38 (2). A magnetic storage device for digital computors comprises a ring core of ferrite material having a square hysteresis loop provided with input, output, and shift pulse windings and also provided with a heater for raising the temperature of the core at will. The heater may comprise a resistance wire or a hot fluid bath and may serve a number of cores. Impulses 19 on the input winding indicate binary digits 1, whilst no input at the predetermined time interval indicates 0. A train of shift pulses 20 are provided in such a direction as to reverse the flux in the core due to the pulses 19, and hence to provide output pulses 21 corresponding to the digit 1 and no pulse to indicate 0. The output winding is provided with a diode rectifier 18. The raising of the temperature improves performance by reducing the time taken for the flux to be reversed in the core.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA820645X | 1955-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB820645A true GB820645A (en) | 1959-09-23 |
Family
ID=4172583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30932/56A Expired GB820645A (en) | 1955-10-15 | 1956-10-11 | Improvements relating to magnetic storage devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB820645A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3124787A (en) * | 1960-09-01 | 1964-03-10 | Figures | |
| US3237173A (en) * | 1962-01-17 | 1966-02-22 | Rca Corp | Memory construction |
-
1956
- 1956-10-11 GB GB30932/56A patent/GB820645A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3124787A (en) * | 1960-09-01 | 1964-03-10 | Figures | |
| US3237173A (en) * | 1962-01-17 | 1966-02-22 | Rca Corp | Memory construction |
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