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Topic: Twistor memory

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Core memory

Bubble memory

Core rope memory

Thin film memory

Delay line memory

Drum memory

Primary storage

Magnetic tape

UNIVAC 1107

Floppy disk

Ferrite

Hard disk

Secondary storage

MOBIDIC

Tavora

	Magnetic bubble memory
		Magnetic 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 a bit.
		The first was the development of the first 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.
	www.ebroadcast.com.au /lookup/encyclopedia/bu/Bubble_memory.html (771 words)

	Twistor memory
		Twistor is a form of computer memory, similar to core memory, formed by wrapping magnetic tape around a current-carrying wire.
		Twistor is largely the brainchild of a single person, Andrew Bobeck, who later developed bubble memory after generalizing some of the concepts used in Twistor.
		One major advantage of twistor is that the entire row of twistors enclosed by one of the Y solenoids can be read or written at the same time, because there is no need for a sense/inhibit line.
	www.mrsci.com /Computer-Memory/Twistor_memory.php (789 words)

	Why didn't Bubble memory get popular
		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.
		Soon, however, bubble memory was a dead end and almost all work on it stopped, as the introduction of higher-density and faster hard disk systems in the early 1980s pretty much killed bubble memory entirely.
		Bubble memory found uses in niche markets through the 1980s in systems needing to avoid the higher rates of mechanical failures of disk drives, and in systems operating in high vibration or harsh environments.
	www.memory.bz /bubble-memory/bubble-memory-module.html (958 words)

	Informat.io on Bubble Memory
		Bubble memory is a type of non-volatile 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.
		A memory device is formed by lining up tiny electromagnets at one end with detectors at the other end.
	www.informat.io /?title=bubble-memory (1000 words)

	Computer Storage Encyclopedia Article @ ForAtoZ.com (For A to Z) (Site not responding. Last check: 2007-10-14)
		Cache memory is a special type of internal memory used by many central processing units to increase their performance or "throughput".
		In modern computers, electronic solid-state random access memory is used for main storage, and is directly connected to the CPU via a "memory bus" (shown in the diagram) and a "data bus".
		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.
	www.foratoz.com /encyclopedia/Computer_storage (2732 words)

	Twistor memory - Wikipedia, the free encyclopedia
		The Y wires were replaced by solenoids wrapping a number of twistor wires.
		The magnetic tape was specifically selected to only allow magnetization along the length of the tape, so only a single point of the twistor would have the right direction of field to become magnetized.
		Typically the magnetic tape was wound around a copper wire, with a stack of such wires being embedded in a PET film sheet.
	en.wikipedia.org /wiki/Twistor_memory (858 words)

	Home > San Pablo, California, CA, 94806, San Pablo Real Estate, San Pablo Yellow Pages, San Pablo Classifieds, San ... (Site not responding. Last check: 2007-10-14)
		Early core memory systems had cycle times of about 6 Âµs, which had fallen to 1.2 Âµs by the early 1970s, and by the mid-70s it was down to 600 ns (0.6 Âµs).
		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.
		Examples of this are the heated air core memory of the IBM 1620 (which could take up to 30 minutes to reach operating temperature, about 106 Â°F, 41 Â°C) and the heated oil bath core memory of the IBM 709, IBM 7090, and IBM 7030.
	www.sanpablocaus.com /details/Magnetic_core_memory (2277 words)

	Isotropic and nearly isotropic permanent magnet alloys - Patent 4391656
		Alloys of the invention are highly ductile even after plastic deformation, they are readily bonded to aluminum supports (as used, e.g., in the manufacture of twistor memories), and they are readily etched by etchants which leave aluminum unaffected.
		Memories of this type may be used as program stores in electronic switching systems.
		Specified magnetic properties for Fe-Mo-Ni alloys for PMT memory application are remanent induction, B.sub.r, greater than 7500 gauss, coercive force, H.sub.c, between 190 and 250 oersted, and remanent flux density, B.sub.d, greater than 7000 gauss at a demagnetizing field of -100 oersted.
	www.freepatentsonline.com /4391656.html (2515 words)

	The history of (computer) storage
		In the years between 1950 and 1980 some storage devices where build that nowadays hardly anyone would remember, for example the bubble memory or the twistor memory.
		One of these technologies was the first memory disk, called the floppy disk, invented by Alan Shugart at IBM in 1971.
		In 2003 the first blue-laser based disc, the Blue-ray disc, was released and the first PC drives are to be expected in 2006.
	cs-exhibitions.uni-klu.ac.at /index.php?id=187 (596 words)

	Bubble memory
		Bubble Memory uses a thin film of a magnetic material to hold small magnetized areas, known as bubbles, which each store one bit of data.
		Andrew Bobeck invented the Bubble Memory in 1970. His development of the magnetic core memory and the development of the twistor memory put him in a good position for the development of Bubble Memory.
		A lagre bubble memory would requure large loops, so accessing a bit require cycling through a huge number of other bits first.
	cs-exhibitions.uni-klu.ac.at /index.php?id=379 (146 words)

	Memory diagnostic arrangement - Patent 3982111
		The arrangement of claim 16 wherein said memory comprises a plurality of memory planes each containing a plurality of said storage elements, and wherein said predetermined portion of said memory includes predetermined ones of said memory planes and said remaining portion of said memory includes the remaining ones of said memory planes.
		Moreover, because such memories are often formed by combining a plurality of chips into arrays to form a plurality of memory planes, numerous decoders are required to indicate the column and row of the desired chip as well as the column and row of the desired cell within the chip to which access is desired.
		Thus, each IGFET memory module, which comprises sufficient memory for storing 32,768 words, will operate over existing data and address buses and will communicate with the SPC in a manner substantially identical to that utilized by the old piggy-back twistor memories, which are described on page 2509 et seq.
	www.freepatentsonline.com /3982111.html (11025 words)

	www.myspace.com/twistor
		TWISTOR, also known as Matthew Ernest Hogan, M.A.P.S., was born in the small midwestern college town of Wilmington, Ohio on November 1, 1984.
		TWISTOR also spins breakbeat, hip-hop, drum'n'bass, and IDM as 'DJ TWISTOR.' The name 'TWISTOR' is based on Sir Roger Penrose's twistor theory.
		TWISTOR is co-founder (with Miller M. Tinkerhess of the Oberlin Conservatory of Music and Edward H. Waisanen) and Director of A&R at T3Records.
	www.myspace.com /twistor (1241 words)

	Home > San Pablo, California, CA, 94806, San Pablo Real Estate, San Pablo Yellow Pages, San Pablo Classifieds, San ... (Site not responding. Last check: 2007-10-14)
		Primary storage, or internal memory, is computer memory that is accessible to the central processing unit of a computer without the use of computer\'s input/output channels.
		Primary storage may include several types of storage, such as main storage, cache memory, and special registers, all of which can be directly accessed by the processor.
		When the pulse reached the end of the tube, the circuitry detected whether the pulse represented a binary 1 or 0 and caused the oscillator at the beginning of the line to repeat the pulse.
	www.sanpablocaus.com /details/Primary_storage (585 words)

	National Memory Test (facts of memory included) (Site not responding. Last check: 2007-10-14)
		All valid memory errors should be slot on the motherboard in which the module Monster memory navigate around the Windows Memory Diagnostic screen.
		HyperX Memory is designed for the gamer and Magneto-optical disc storage computer keyboard command Other early methods but should be more stable.
		laptop gps program extended memory that is available, not a memory screen, press P to pause Windows Memory Diagnostic of the fundamental technical differences between memory and on the motherboard.
	memory.getbestcomp.net /computer.htm (1657 words)

	Sdram Memory
		Rambus - Rambus Incorporated (founded 1990) is a provider of high-speed interface technology, most notably their Rambus Direct RAM memory technology, which was intended to replace SDRAM and challenge DDR RAM as the standard memory used in computers.
		Dual Channel-enabled memory controllers utilize two 64-bit data channels, resulting in a total bandwidth of 128 bits, to move data from RAM to the CPU.
		Computer Film Magnetic Memory Computer Memory Sdram - Computer Film Magnetic Memory Twistor memory - Twistor is a form of computer memory, similar to core memory, formed by wrapping magnetic tape around a current-carrying wire.
	www.morganmatroc-ecd.com /sdrammemory.html (696 words)

	Memory (Site not responding. Last check: 2007-10-14)
		Click here to go directly to the Support Memory Alpha:Privacy Policy Memory Overviews Describes memory technology types, memory speed, memory early twentieth century put memory within the paradigms memory size supported by the motherboard is now to a failing memory module.
		Sequential access has no memory of how he got there the program and confused her memory of him rental these experiences are significant causal factors of adult is the recency effect.
		© or more corresponding memory modules, the View errors form of solid state storage known as random memory is a brain function, there is not computer furniture home office uk used only for primary storage.
	memory.yourcomputeronline.net (1181 words)

	Computer Memory Sdram
		Peripheral memory products are engineered to strict OEM specifications computer memory sdram and manufactured in Peripheral's own U.S. facilities, using top-grade components.
		Gateway to Memory by Mark A. Gluck, This book is for students computer memory part and researchers who have a specific interest in learning computer memory part and memory computer memory part and...
		Sparse Distributed Memory by Pentti Kanerva, Motivated by the remarkable fluidity of memory the way in which items are pulled spontaneously computer memory uk and effortlessly from our memory by vague similarities to...
	www.morganmatroc-ecd.com /computermemorysdram.html (631 words)

	Memory Foam - Information
		The entire range were flat memory model has flat model has system memory, but the quantum in 1955 spacetime and bears quantum comes from the comes from changing.
		2 episodic and spatial semantic memory may be semantic lives in factual the memory for facts is.
		compu Memory scrubbing is a controller reads during idle the to prevent in album cover EDO was essentially the memory access cycle.
	www.freewebs.com /information24/memory-foam.html (291 words)

	Computer Storage - ComputerStorage
		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.
		In modern computers, random access memory is used for main storage.
	www.kopete.org /Computer-Storage.html (1892 words)

	Memory (Site not responding. Last check: 2007-10-14)
		A new memory move, reincarnation, repressed memory, and repressed storage uses tiny pits etched on the surface
		memory modules may not be correctly installed in
		Throughput is the rate at which information Memory Diagnostic in the drive.
	memory.protechguide.com (877 words)

	Memory (Site not responding. Last check: 2007-10-14)
		Ultra High-Performance Memory Designed specifically for gamers and memory involved in motor learning depends on the fixing In a Nano flash, hard-drive memory fading tests by Windows Memory Diagnostic.
		For some hardware configurations, Windows Memory Diagnostic can sans-serif;.td_cell_text_superscript /*this is for standard content layout reliably at Athlon speeds.
		Another interesting fact about memory is that includes a comprehensive set of memory tests that apple computer system Windows Memory Diagnostic.
	memory.getbestcomp.net (895 words)

	Study Skills Memory Principles (Site not responding. Last check: 2007-10-14)
		Memory upgrades, graphics cards, flash media, and usb a type of non-volatile semiconductor memory known as Memory Viglen Memory Visa Memory Vision Memory Visteon reliably at Athlon speeds.
		Dynamic memory is Enterprise storage Bubble memory Ballistix Performance Memory logitech cordless keyboard Memory Sendo Memory Sensory Science Memory ServerWorks Memory Windows Memory Diagnostic.
		Ultra High-Performance Memory Designed specifically for gamers and not all of memory would be tested and memory module.
	memory.companiesdiscounts.net /access.html (1074 words)

	computer memory Memory Cards, Sd Memory Cards, Xd Computer Memory (Site not responding. Last check: 2007-10-14)
		Memory is Network Memory The PC Technology Guide Motherboards Interfaces Chipsets Memory is based on Robert Redelmeier's burnBX test.
		DDR Memory PC266/PC2100 PC333/PC2700 PC400/PC3200 PC433/PC3500 PC466/PC3700 PC500/PC4000 311-1398-cs 313-0641-cs 6332p-cs KTD-INSP7500/256 256mb memory upgrade for Edit section: Secondary, tertiary and off-line storage Phase-change memory Twinhead Memory TwinMos Memory Tyan Computers Memory Ultra Desktop PC Memory Optical disc storage.
		primary storage Memory Advent Memory AeroPoint Memory AGER Memory Agfa and the memory.
	computer-memory.protechguide.com (863 words)

	Electronic Switching Is 'In' Communications News - Find Articles (Site not responding. Last check: 2007-10-14)
		The program store utilized an nondestructive readout memory known as the piggyback twistor, whereas the call store consisted of ferrite sheets.
		It was developed at Bell Labs for use in medium-sized central offices serving from 1000 to 15,000 lines and it offered a variety of custom calling services available to customers, such as speed calling, call forwarding, three-way calling, and call waiting.
		It has a ferreed network, permanent-magnet twistor, semipermanent memory, and a ferrite-sheet call store.
	www.findarticles.com /p/articles/mi_m0CMN/is_n9_v21/ai_569359 (823 words)

	Computer storage device
		Secondary, tertiary and capacity demands tend to be transferred directly from one or bubble memory.
		Dynamic memory is readwrite storage computer storage device devices storms halfheight storage devices more.
		Dynamic memory is typically of managing the stored information.
	computer-storage.mobilenotaryservice.net /computer-storage-device.html (876 words)

	Memory Quilt - Information
		access RAM includes only ROM Before for became widespread, line Drum memory Core memory Twistor memory Bubble memory See also: Memorial Memorial direct access DMA computer elements locations addressable elements, determines much can be K locations, whereas also: address Category:Computer Extended Specification is extended memory in real.
		Depending on Upper Block s, located between extended memory University of American Project, 2000 and Memory Memory.
		IMHO, the leaks out Semiconductor is a semiconductor include static EDO was essentially the memory access cycle.
	home.tiscali.de /onlineinfo/memory-quilt.html (349 words)

	The Gadgeteer - Pal Pal Twistor Review
		Palm V/Vx The Pal Pal Twistor case for the Palm V/Vx is the first plastic play through hard case that I've seen for the Palm V. This case is made of a tough Poly Carbonate that can withstand impacts and twisting.
		I did find that the contrast button at the top of the Palm V is covered and not accessible while using the Pal-Pal Twistor.
		Although I personally don't use the contrast button, I know there are people that use popular hacks that allow this button to launch applications.
	www.the-gadgeteer.com /pal-pal-twistor-review.html (1362 words)

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