Magnetic-core memory - Wikipedia
网页In computing, magnetic-core memory is a form of random-access memory. It predominated for roughly 20 years between 1955 and 1975, and is often just called core memory, or, informally, core. Core memory uses toroids (rings) of a hard magnetic material (usually a semi-hard ferrite). Each core stores one bit of information.
[PDF] MAGNETIC CORE MEMORIES - Semantic Scholar
网页Magnetic, ferrite core memories made this fundamental function and were the dominant technology among fifties and seventies, before being substituted by transistors first and integrated circuits after.
网页instead known as “magnetic core memories” and were the predominant form of RAM until the mid-70s (Figure 2.1-1). They used ferrite toroids (rings/cores) arranged in an x–y grid configuration. Four wires were threaded through each ferrite core: X/Y/sense/inhibit. These were used to select bits, change their state, and read them out. Each ...
网页One of the earliest types of computer memory was called magnetic core memory. It was made by weaving fine copper wires through tiny rings of magnetic material in an array. Figure 12-1 shows the basic arrangement of core memory. Diagram of a …
网页From magnetics to the engineering design of memory, this practical book explains key magnetic properties and how they are related to memory perform-ance, characterization methods of magnetic films, and tunneling magnetoresis-tance effect devices. It also covers memory cell options, array architecture, circuit models, and read-write engineering ...
网页2024年6月3日 · Magnetic Core Memory In the late 40s several researchers, notably Jay Forrester of MIT, developed magnetic core memory (https://adafru.it/BJD). This memory was made up of tiny magnetic rings that were called cores (hence the name of the technology). Wires are threaded through the cores allowing them to be magnetized in either a …
网页The goal was to replace magnetic-core random access memory (RAM), which was large, slow and power-hungry. We wanted to build RAM using integrated circuits with six small MOS transistors in a...
A new spin on magnetic memories | Nature Nanotechnology
网页2015年3月5日 · Spin-transfer-torque magnetic random access memory (STT-MRAM) devices store information in the orientation of the magnetization of nanometre-scale ferromagnetic elements.
[PDF] The MIT magnetic-core memory - Semantic Scholar
网页One recent development which is significantly raising the reliability of today's high-speed automatic digital computer is the multicoordinate magnetic-core memory. Two banks of 32 by 32 by 17 magnetic-core memory have been in full-time operation in the Whirlwind I Computer for some months.
Magnetic Memory: Fundamentals and Technology | Guide books …
网页From magnetics to the engineering design of memory, this practical book explains key magnetic properties and how they are related to memory performance, characterization methods of magnetic films, and tunneling magnetoresistance effect devices. It also covers memory cell options, array architecture, circuit models, and read-write engineering ...