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| | Magnetic core memory - Wikipedia, the free encyclopedia |
 | | An example of this is the core memory used by Digital Equipment Corporation for their PDP-1 computer; this strategy continued through all of the follow-on core memory systems built by DEC for their PDP line of air-cooled computers. | | | Magnetic core memory, or ferrite-core memory, is an early form of computer memory. | | | Core memory was part of a family of related technologies, now largely forgotten, which exploited magnetic properties of materials to perform switching and amplification. |
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http://en.wikipedia.org/wiki/Core_memory
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| | Core memory |
| | The first commercial computer with a core memory (100.000 bits, cycle time 17 microseconds) was the IBM 705, a vacuum tube based computer delivered in 1955. | | | The invention of core memory is ascribed both to A. Wang (working at the Harvard Computing Laboratory with H. Aiken) and W. Papian (working with J.W. Forrester at MIT in Project Whirlwind). | | | Core memory was used first in the Whirlwind computer besides Williams tubes. |
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http://www.science.uva.nl/faculteit/museum/CoreMemory.html
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| | Core - Wikipedia, the free encyclopedia |
| | Core memory or storage is memory made of magnetic toruses. | | | CoRE is also an acronym for Computers, Robotics, Engineering, a Shared Learning Environment at Binghamton University. | | | (Execution) core is the computation engine of a processor. |
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http://en.wikipedia.org/wiki/Core
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| | Random access memory - Wikipedia, the free encyclopedia |
| | Core memory, which used wires attached to small ferrite electromagnetic cores, also had roughly equal access time (the term “core” is still used by some programmers to describe the RAM main memory of a computer). | | | The basic concepts of tube and core memory are used in modern RAM implemented with integrated circuits. | | | Generally, RAM in a computer is considered main memory (or primary storage): the working area used for displaying and manipulating data. |
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http://en.wikipedia.org/wiki/Random_access_memory
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| | Developing with Core Data |
| | It allows Core Data to efficiently optimize the objects that are loaded into memory and leave unused data on disk. | | | All changes to the objects managed by Core Data happen in memory and are transient until they are committed to disk. | | | In down-to-earth terms, this means that Core Data organizes the application's model layer into a set of defined in-memory data objects. |
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http://developer.apple.com/macosx/coredata.html
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| | Magnetic core memory - Wikipedia, the free encyclopedia |
| | Although computer memory long ago moved to silicon chips, a file which is a dump of memory produced after a program error is still known as a core dump. | | | Two key inventions led to the development of magnetic core memory, which enabled the development of computers as we know them. | | | Core memory was part of a family of related technologies, now largely forgotten, which exploited magnetic properties of materials to perform switching and amplification. |
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http://www.wikipedia.org/wiki/Core_memory
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| | [H] Enthusiast - [H]arder than ever. |
| | Instead of two processor cores being saddled to one bus and run to a single memory controller as we see with Intel dual core technology, we have to remember that AMD Athlon 64 processors have the memory controller on the CPU die itself and therefore no front side bus is needed. | | | Also, each CPU core has its own 1MB of full speed L2 cache and the L1 caches are of course independent as well. | | | A look at what AMD's new dual core 4800+ processor is going to bring to your computing table. |
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http://www.hardocp.com/article.html?art=NzY2
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| | Encyclopedia article: Core dump |
| | A core dump is an unstructured record of the contents of working memory (An electronic memory device) at a specific time, generally used to debug (additional info and facts about debug) a program that has terminated abnormally (crashed). | | | The paper form of dump generally was arranged in columns of hexadecimal (additional info and facts about hexadecimal) numbers (a "hex dump"), sometimes with alternate interpretations of memory contents along the side: as machine language instructions, as text strings, as decimal numbers, as floating-point numbers, etc. | | | Core dumps are a useful debugging aid in several situations. |
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http://www.absoluteastronomy.com/encyclopedia/c/co/core_dump.htm
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| | Computer storage - Wikipedia, the free encyclopedia |
| | In early computers, magnetic storage was also used for primary storage in a form of magnetic drum, or core memory, core rope memory, thin film memory, twistor memory or bubble memory. | | | Computer storage, or computer memory, refers to the computer components, devices and recording media that retain binary information for some interval of time. | | | In casual language, memory usually refers to forms of storage which are fast, but lose their contents in a case of power loss, and storage refers to forms of storage which are slower, but suitable for long-term retention. |
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http://en.wikipedia.org/wiki/Computer_storage
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| | Historical, nonmechanical memory technologies - Chapter 15: DIGITAL STORAGE (MEMORY) - Volume IV - Digital |
| | Core memory was used from the 1960's until the late 1970's in many computer systems, including the computers used for the Apollo space program, CNC machine tool control computers, business ("mainframe") computers, and industrial control systems. | | | Jay Forrester of MIT applied this principle in inventing the magnetic "core" memory, which became the dominant computer memory technology during the 1970's. | | | Bubble memory took advantage of a peculiar phenomenon in a mineral called garnet, which, when arranged in a thin film and exposed to a constant magnetic field perpendicular to the film, supported tiny regions of oppositely-magnetized "bubbles" that could be nudged along the film by prodding with other external magnetic fields. |
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http://www.allaboutcircuits.com/vol_4/chpt_15/4.html
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| | core dump - definition of core dump in Encyclopedia |
| | A core dump is a file containing the contents of memory at the time a program or computer crashed. | | | A dump is to transfer the content of the memory verbatim to record the state of the computer. | | | In modern times, a core dump file can be analyzed by a debugger program to provide such information as what values were assigned to variables, what was allocated on the stack, and (if appropriate debugging information was included by the compiler) what line of the program's source code the crash occurred at. |
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http://encyclopedia.laborlawtalk.com/core_dump
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| | bobeck.txt |
| | Ferrite cores were good, but there had to be a better memory, one that wasn't so big, one that might be faster and, in time, one that might be cheaper. | | | http://www.eetonline.com/special/special_issues/millennium/milestones/bobeck.html EE Times Online The Century of the Engineer: Misunderstood Milestones Bubbles: the better memory by George Rostky Andrew Bobeck was out to challenge the entrenched memories of the late 1960s, ferrite cores and drums. | | | He had worked on ferrite - core memories and had designed the first ferrite-core memory to be driven by transistors rather than bulky, fragile, heat-emitting and short-lived vacuum tubes. |
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http://starfish.osfn.org/rcs/bubble/bobeck.txt
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| | Bubble memory - Wikipedia, the free encyclopedia |
| | The first was the development of the first magnetic core memory system driven by a transistor -based controller, and the second was the development of Twistor memory. | | | Twistor memory was based on magnetostriction, an effect which can be used to move magnetic fields. | | | Bubble memory is a type of computer memory that uses a thin film of a magnetic material to hold small magnetized areas, known as bubbles, which each store one |
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http://en.wikipedia.org/wiki/Bubble_memory
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| | Image - Wikipedia, the free encyclopedia |
| | A core image (or core dump, from magnetic core memory, the predominant RAM technology of the 1960s) is a faithful copy of the data stored in the main memory of a computer or process. | | | In this wider sense, images can also be produced manually, such as by drawing, painting, carving, by computer graphics technology, or a combination of the two, especially in a pseudo-photograph. | | | In computer graphics and digital image processing, the word image almost always means digital image or, by extension, any computer description of an image, e.g. |
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http://en.wikipedia.org/wiki/Image
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| | Computer storage - Wikipedia, the free encyclopedia |
| | Historically, "memory" referred to "magnetic core memory" in the 1950s, and then to semiconductor-based storage in the 1970s, at a time when the fastest response times were for magnetic core, and then for semiconductor memory, respectively. | | | secondary (indirect) access by the CPU, which was based primarily on speed of access to the memory. | | | Primary storage can be used to refer to local random-access disk storage, which should properly be called secondary storage. |
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http://en.wikipedia.org/wiki/Computer_memory
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| | Random access memory - Wikipedia, the free encyclopedia |
| | Core memory, which used wires attached to small ferrite electromagnetic cores, also had roughly equal access time (the term “core” is still used by some programmers to describe the RAM at the heart of a computer). | | | This is in contrast to sequential memory devices such as magnetic tapes, discs and drums, in which the mechanical movement of the storage medium forces the computer to access data in a fixed order. | | | In today's computers memory access is becoming very slow when compared to CPU cycles since most computers use cheap, but comparatively slow, DRAM for the main memory. |
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http://en.wikipedia.org/wiki/Random_access_memory
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| | Computer storage |
| | Historically, "memory" referred to "magnetic core memory" in the 1950s, and then to semiconductor-based storage in the 1970s, at a time when the fastest response times were for magnetic core, and then for semiconductor memory, respectively. | | | The terms "storage" ( U.K) or "memory" ( U.S) refer to the parts of a digital computer that retain physical state ( data) for some interval of time, possibly even after electrical power to the computer is turned off. | | | Semiconductor memory (RAM) and magnetic disk are examples of this type of storage. |
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http://www.sciencedaily.com/encyclopedia/computer_storage_1
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| | Flash memory - Wikipedia, the free encyclopedia |
| | NAND flash memory forms the core of the removable USB interface storage devices known as USB flash drives. | | | Flash memory is also used in USB flash drives, which are used for general storage and transfer of data between computers. | | | Flash memory costs far less than EEPROM and therefore has become the dominant technology wherever a significant amount of non-voltatile, solid-state storage is needed. |
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http://en.wikipedia.org/wiki/Flash_memory
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| | magnetic bubble memory - definition of magnetic bubble memory in Encyclopedia |
| | Bubble memory is a type of computer memory that uses a thin film of a magnetic material to hold small magnetized areas, known as bubbles, which each store one bit of data. | | | The first was the development of the first magnetic core memory system driven by a transistor-based controller, and the second was the development of Twistor memory. | | | Bubble memory was a very promising technology in the 1970s, but flopped commercially when hard disks came to proliferate in the 80s. |
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http://encyclopedia.laborlawtalk.com/magnetic_bubble_memory
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| | Drum memory - LinuxQuestions.org Wiki |
| | Drum memory was eventually replaced by core memory when manufactoring of core was sent overseas. | | | Drum memory was a form of computer memory used during the Bronze Age of computing. | | | Drum memory was, to a certain extent, sequential, rather than random, like today's modern RAM, in that you had to wait for the section with your data to pass under the read/write head. |
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http://wiki.linuxquestions.org/wiki/Drum_memory
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| | Athlon 64 and Opteron dual-core explained |
| | Two cores fighting for data from the main memory is nothing new, you can see exactly the same thing in older dual processor designs like the Xeon and the Athlon MP series. | | | Where the execution units in a HyperThreading processor have to share the cache, in dual-core chips, each core has a separate cache, the only contention is when going to main memory. | | | Provided the level 2 cache is a decent size for each core, that contention should be kept to a fairly low level. |
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http://www.theinquirer.net/?article=13344
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| | AnandTech: Memory Section |
| | With a memory voltage to 4.0V, the DFI nF4 offers new overclocking capabilities with OCZ VX and other DDR memory. | | | Corsair introduces a new DDR550 memory based on the legendary Samsung TCCD memory chips. | | | OCZ VX Memory + DFI nForce4 = DDR533 at 2-2-2 |
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http://www.anandtech.com/memory
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| | Computer Memory |
| | The development of core memory was a spin off from the Whirlwind project. | | | Magnetic core memory was the invention of Jay W Forrester and was developed with the assistance of a graduate student - Kenneth Olsen. | | | When using a CRT tube as a memory device the operating voltages of the tube are adjusted to ensure maximum secondary emission - more electrons are emitted from the impact spot than are arriving in the primary electron beam and a small positive charge builds up in the area of the spot. |
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http://www.arcula.demon.co.uk/bhist7.htm
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| | NodeWorks - Encyclopedia: Core War |
| | Core War programs (called "warriors") are assembled and executed by a program called a Memory Array Redcode Simulator (abbreviated to MARS). | | | "Core" refers to magnetic core memory, an obsolete technology. | | | Core War (or Core Wars, also Darwin) is a game consisting of battles between two or more assembly language programs occupying the same memory space in which the winner is the last one running. |
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http://pedia.nodeworks.com/C/CO/COR/Core_War
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| | Drum memory - Wikipedia, the free encyclopedia |
| | Drums were later replaced by core memory, which was faster and had no moving parts, and which lasted until semiconductor memory entered the scene. | | | Drum memory was an early form of computer memory that was widely used in the 1950s and into the 1960s. | | | Librascope LGP-30 – The drum memory computer referenced in the above story, also referenced on Librascope LGP-30. |
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http://en.wikipedia.org/wiki/Drum_memory
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| | NV20-5 |
| | But one must keep in mind that a video processor with advanced core architecture always has the ability to manage memory bandwidth more efficiently and thus take on a better performance with the same memory bandwidth. | | | Video core speed: The 3D rendering capacity of the fastest NVIDIA graphic processor has reached a value as high as 1000 mega pixels per second, however this fill rate is never seen actualised due to the acute CPU limitation or memory bandwidth encountered. | | | This is just the reason that without a advanced video core why we can't make a great video card by only increasing its memory bandwidth, though that the memory bandwidth is the main factor that limits the performance of video cards today. |
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http://www.geocities.com/tnaw_xtennis/NV20-5.htm
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| | main memory Computer Encyclopedia Enterprise Resource Directory Complete Guide to Internet |
| | In the old days {ferrite core memory} was one popular form of main memory, leading to the use of the term "{core}" for main memory. | | | A modern computer's main memory is built from {random access memory} {integrated circuits}. | | | Computers have several other sorts of memory, distinguished by their access time, storage capicity, cost, and the typical lifetime or rate of change of the data they hold. |
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http://jaysir.com/computer-encyclopedia/m/main-memory-computer-terms.htm
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| | corewars |
| | One of the simplest Core Wars programs is this one, from the original Scientific American article: ; Imp, by A. Dewdney imp MOV 0, 1 ; This program copies itself ahead one END ; instruction and moves through memory. | | | The memory in the Core Wars computer begins initialized to a particular value. | | | Core Wars is a game of battling computer programs. |
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http://www.pbm.com/~lindahl/pbem_articles/corewars
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| | Virtual Memory Definition |
| | Virtual memory was incorporated into the UNIX kernel (i.e., the core of the operating system) in the 1970s as part of the Berkeley Extensions, which were developed at the University of California at Berkeley (UCB). | | | Virtual memory is so important that its acronym, i.e., vm, was incorporated into the name of the Linux kernel as it is used on most systems, i.e., vmlinux for the non-compressed version and vmlinuz for the compressed, bootable (i.e., runnable) version. | | | Virtual memory permits software to run in a memory space (i.e., a logical memory) whose size is greater than the computer's RAM. |
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http://www.bellevuelinux.org/virtual.html
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