GB873957A - Improvements in magnetic core logical devices - Google Patents
Improvements in magnetic core logical devicesInfo
- Publication number
- GB873957A GB873957A GB33927/57A GB3392757A GB873957A GB 873957 A GB873957 A GB 873957A GB 33927/57 A GB33927/57 A GB 33927/57A GB 3392757 A GB3392757 A GB 3392757A GB 873957 A GB873957 A GB 873957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- digit
- apertures
- magnetic core
- oct
- 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
- 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
- G06F7/383—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using magnetic or similar elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/80—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices
- H03K17/82—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices the devices being transfluxors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Analysis (AREA)
- Computing Systems (AREA)
- Computational Mathematics (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Digital Magnetic Recording (AREA)
Abstract
873,957. Magnetic core storage devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 30, 1957 [Oct 30, 1956], No. 33927/57. Class 38 (2). [Also in Groups XIX and XXXIX] In a full-adder (see Group XIX and Fig. 4, not shown) an apertured core, Fig. 3, having inputs 62 and an output 63 is used to produce a " carry " digit, the logical equivalent of the core being shown in Fig. 3A. A further core having four adjacent apertures is used to produce the sum." digit. An alternative arrangement for producing the carry digit by means of a core having three apertures is described (Fig. 4A, not shown) and an " exclusive or " circuit using a core having two apertures is also described (Fig. ], not shown). Specifications 854,447 and 858,338 are referred to. Reference has been directed by the Comptroller to Specification 814,455.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US873957XA | 1956-10-30 | 1956-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB873957A true GB873957A (en) | 1961-08-02 |
Family
ID=22204937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33927/57A Expired GB873957A (en) | 1956-10-30 | 1957-10-30 | Improvements in magnetic core logical devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB873957A (en) |
-
1957
- 1957-10-30 GB GB33927/57A patent/GB873957A/en not_active Expired
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