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Dynamic random-access memory

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Dynamic random-access memory (DRAM) is a type of random access semiconductor memory that stores each bit of data in a separate tiny capacitor within an integrated circuit. [1]

120 relations: A-RAM, Address bus, Apple Inc., Application-specific integrated circuit, Areal density (computer storage), Atanasoff–Berry computer, Background radiation, Bit, BitLocker, Bletchley Park, Capacitance, Capacitor, CAS latency, Central processing unit, Centre national de la recherche scientifique, Cold boot attack, Common-mode signal, Computer, Computer data storage, Cosmic ray, Coulomb, Counter (digital), CPU cache, Cryptanalysis, Data remanence, DDR SDRAM, DDR2 SDRAM, DDR3 SDRAM, Double data rate, DRAM price fixing, Dual in-line package, Dual-ported RAM, Dynamic logic (digital electronics), Dynamic random-access memory, EDRAM, Electric charge, Error correction code, Farad, FileVault, Flash memory, Flip-flop (electronics), Floating body effect, Framebuffer, GameCube, GDDR3 SDRAM, GDDR4 SDRAM, GDDR5 SDRAM, Graphics processing unit, Honeywell, IBM, ..., IBM Personal Computer, Integrated circuit, Intel, Intel 1103, Interleaved memory, Inverter (logic gate), JEDEC, List of interface bit rates, Logic level, Mask (computing), Matrox, Megabit, Memory bank, Memory cell (computing), Memory controller, Memory geometry, Memory refresh, Micron Technology, Microprocessor, Mostek, MoSys, Motherboard, Neutron, Nintendo, Noise (electronics), Non-volatile memory, Numonyx, Open-source model, Photomask, Polyfuse (PROM), Positive feedback, RAM parity, Random-access memory, RC time constant, Redundancy (engineering), Refresh rate, Resistor, Retronym, Robert H. Dennard, Row hammer, Samsung Electronics, Selectron tube, Semiconductor device fabrication, Semiconductor memory, Sense amplifier, Silicon on insulator, Single event upset, SK Hynix, Soft error, Static random-access memory, Sunnyvale, California, Synchronous dynamic random-access memory, System on a chip, Texture memory, Thomas J. Watson Research Center, Threshold voltage, Transistor, TrueCrypt, Tseng Labs, Tunnel diode, University of Granada, Vertical blanking interval, Video card, Video game, Volatile memory, Wii, Williams tube, World War II, Z-RAM, 1T-SRAM. Expand index (70 more) »

A-RAM

Advanced-Random Access Memory (A-RAM) is a type of dynamic random-access memory (DRAM) based on single-transistor capacitor-less cells.

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Address bus

An address bus is a computer bus (a series of lines connecting two or more devices) that is used to specify a physical address.

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Apple Inc.

Apple Inc. is an American multinational technology company headquartered in Cupertino, California, that designs, develops, and sells consumer electronics, computer software, and online services.

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Application-specific integrated circuit

An Application-Specific Integrated Circuit (ASIC), is an integrated circuit (IC) customized for a particular use, rather than intended for general-purpose use.

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Areal density (computer storage)

Areal density is a measure of the quantity of information bits that can be stored on a given length of track, area of surface, or in a given volume of a computer storage medium.

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Atanasoff–Berry computer

The Atanasoff–Berry Computer (ABC) was the first automatic electronic digital computer, an early electronic digital computing device that has remained somewhat obscure.

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Background radiation

Background radiation is a measure of the ionizing radiation present in the environment at a particular location which is not due to deliberate introduction of radiation sources.

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Bit

The bit (a portmanteau of binary digit) is a basic unit of information used in computing and digital communications.

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BitLocker

BitLocker is a full disk encryption feature included with Windows Vista and later.

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Bletchley Park

Bletchley Park was the central site for British (and subsequently, Allied) codebreakers during World War II.

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Capacitance

Capacitance is the ratio of the change in an electric charge in a system to the corresponding change in its electric potential.

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Capacitor

A capacitor is a passive two-terminal electrical component that stores potential energy in an electric field.

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CAS latency

Column Access Strobe (CAS) latency, or CL, is the delay time between the moment a memory controller tells the memory module to access a particular memory column on a RAM module, and the moment the data from the given array location is available on the module's output pins.

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Central processing unit

A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.

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Centre national de la recherche scientifique

The French National Center for Scientific Research (Centre national de la recherche scientifique, CNRS) is the largest governmental research organisation in France and the largest fundamental science agency in Europe.

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Cold boot attack

In cryptography, a cold boot attack (or to a lesser extent, a platform reset attack) is a type of side channel attack in which an attacker with physical access to a computer is able to retrieve encryption keys from a running operating system after using a cold reboot to restart the machine.

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Common-mode signal

Common-mode signal is the component of an analog signal which is present with one sign on all considered conductors.

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Computer

A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.

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Computer data storage

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media that are used to retain digital data.

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Cosmic ray

Cosmic rays are high-energy radiation, mainly originating outside the Solar System and even from distant galaxies.

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Coulomb

The coulomb (symbol: C) is the International System of Units (SI) unit of electric charge.

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Counter (digital)

In digital logic and computing, a counter is a device which stores (and sometimes displays) the number of times a particular event or process has occurred, often in relationship to a clock signal.

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CPU cache

A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory.

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Cryptanalysis

Cryptanalysis (from the Greek kryptós, "hidden", and analýein, "to loosen" or "to untie") is the study of analyzing information systems in order to study the hidden aspects of the systems.

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Data remanence

Data remanence is the residual representation of digital data that remains even after attempts have been made to remove or erase the data.

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DDR SDRAM

DDR SDRAM is a double data rate synchronous dynamic random-access memory class of memory integrated circuits used in computers.

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DDR2 SDRAM

DDR2 SDRAM is a double data rate synchronous dynamic random-access memory interface.

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DDR3 SDRAM

Double data rate type three SDRAM (DDR3 SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) with a high bandwidth ("double data rate") interface, and has been in use since 2007.

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Double data rate

In computing, a computer bus operating with double data rate (DDR) transfers data on both the rising and falling edges of the clock signal.

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DRAM price fixing

In 2002, the United States Department of Justice, under the Sherman Antitrust Act, began a probe into the activities of dynamic random access memory (DRAM) manufacturers.

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Dual in-line package

In microelectronics, a dual in-line package (DIP or DIL), or dual in-line pin package (DIPP) is an electronic component package with a rectangular housing and two parallel rows of electrical connecting pins.

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Dual-ported RAM

Dual-ported RAM (DPRAM) is a type of random-access memory that allows multiple reads or writes to occur at the same time, or nearly the same time, unlike single-ported RAM which allows only one access at a time.

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Dynamic logic (digital electronics)

In integrated circuit design, dynamic logic (or sometimes clocked logic) is a design methodology in combinatory logic circuits, particularly those implemented in MOS technology.

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Dynamic random-access memory

Dynamic random-access memory (DRAM) is a type of random access semiconductor memory that stores each bit of data in a separate tiny capacitor within an integrated circuit.

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EDRAM

Embedded DRAM (eDRAM) is dynamic random-access memory (DRAM) integrated on the same die or multi-chip module (MCM) of an application-specific integrated circuit (ASIC) or microprocessor.

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Electric charge

Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.

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Error correction code

In computing, telecommunication, information theory, and coding theory, an error correction code, sometimes error correcting code, (ECC) is used for controlling errors in data over unreliable or noisy communication channels.

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Farad

The farad (symbol: F) is the SI derived unit of electrical capacitance, the ability of a body to store an electrical charge.

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FileVault

FileVault is a disk encryption program in Mac OS X 10.3 and later.

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Flash memory

Flash memory is an electronic (solid-state) non-volatile computer storage medium that can be electrically erased and reprogrammed.

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Flip-flop (electronics)

In electronics, a flip-flop or latch is a circuit that has two stable states and can be used to store state information.

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Floating body effect

The floating body effect is the effect of dependence of the body potential of a transistor realized by the silicon on insulator (SOI) technology on the history of its biasing and the carrier recombination processes.

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Framebuffer

A framebuffer (frame buffer, or sometimes framestore) is a portion of RAM containing a bitmap that drives a video display.

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GameCube

The GameCube is a home video game console released by Nintendo in Japan and North America in 2001 and Europe and Australia in 2002.

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GDDR3 SDRAM

Graphics DDR3 SDRAM (GDDR3 SDRAM) is a type of DDR SDRAM specialized for graphics processing units (GPUs) offering less access latency and greater device bandwidths.

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GDDR4 SDRAM

GDDR4 SGRAM, an abbreviation for double data rate type four synchronous graphics random access memory, is a type of graphics card memory specified by the JEDEC Semiconductor Memory Standard.

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GDDR5 SDRAM

GDDR5, an abbreviation for double data rate type five synchronous graphics random-access memory, is a modern type of synchronous graphics random-access memory (SGRAM) with a high bandwidth ("double data rate") interface designed for use in graphics cards, game consoles, and high-performance computation.

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Graphics processing unit

A graphics processing unit (GPU) is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device.

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Honeywell

Honeywell International Inc. is an American multinational conglomerate company that produces a variety of commercial and consumer products, engineering services and aerospace systems for a wide variety of customers, from private consumers to major corporations and governments.

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IBM

The International Business Machines Corporation (IBM) is an American multinational technology company headquartered in Armonk, New York, United States, with operations in over 170 countries.

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IBM Personal Computer

The IBM Personal Computer, commonly known as the IBM PC, is the original version and progenitor of the IBM PC compatible hardware platform.

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Integrated circuit

An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, normally silicon.

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Intel

Intel Corporation (stylized as intel) is an American multinational corporation and technology company headquartered in Santa Clara, California, in the Silicon Valley.

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Intel 1103

The 1103 is a dynamic random-access memory (DRAM) integrated circuit (IC) developed and fabricated by Intel.

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Interleaved memory

In computing, interleaved memory is a design made to compensate for the relatively slow speed of dynamic random-access memory (DRAM) or core memory, by spreading memory addresses evenly across memory banks.

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Inverter (logic gate)

In digital logic, an inverter or NOT gate is a logic gate which implements logical negation.

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JEDEC

The JEDEC Solid State Technology Association is an independent semiconductor engineering trade organization and standardization body.

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List of interface bit rates

This is a list of interface bit rates, is a measure of information transfer rates, or digital bandwidth capacity, at which digital interfaces in a computer or network can communicate over various kinds of buses and channels.

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Logic level

In digital circuits, a logic level is one of a finite number of states that a digital signal can inhabit.

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Mask (computing)

In computer science, a mask is data that is used for bitwise operations, particularly in a bit field.

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Matrox

Matrox is a producer of video card components and equipment for personal computers.

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Megabit

The megabit is a multiple of the unit bit for digital information.

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Memory bank

A memory bank is a logical unit of storage in electronics, which is hardware-dependent.

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Memory cell (computing)

The memory cell is the fundamental building block of computer memory.

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Memory controller

The memory controller is a digital circuit that manages the flow of data going to and from the computer's main memory.

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Memory geometry

In the design of modern computers, memory geometry describes the internal structure of random-access memory.

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Memory refresh

Memory refresh is the process of periodically reading information from an area of computer memory and immediately rewriting the read information to the same area without modification, for the purpose of preserving the information.

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Micron Technology

Micron Technology, Inc. is an American global corporation based in Boise, Idaho.

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Microprocessor

A microprocessor is a computer processor that incorporates the functions of a central processing unit on a single integrated circuit (IC), or at most a few integrated circuits.

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Mostek

Mostek was an integrated circuit manufacturer, founded in 1969 by L. J. Sevin, Louay E. Sharif, Richard L. Petritz and other ex-employees of Texas Instruments.

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MoSys

MoSys, Inc. is a publicly traded fabless semiconductor company based in Santa Clara, California that sells solutions for data path connectivity, speed and intelligence while eliminating data access bottlenecks on line cards and systems scaling from 100G to multi-terabits per second.

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Motherboard

A motherboard (sometimes alternatively known as the mainboard, system board, baseboard, planar board or logic board, or colloquially, a mobo) is the main printed circuit board (PCB) found in general purpose microcomputers and other expandable systems.

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Neutron

| magnetic_moment.

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Nintendo

Nintendo Co., Ltd. is a Japanese multinational consumer electronics and video game company headquartered in Kyoto.

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Noise (electronics)

In electronics, noise is an unwanted disturbance in an electrical signal.

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Non-volatile memory

Non-volatile memory (NVM) or non-volatile storage is a type of computer memory that can retrieve stored information even after having been power cycled.

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Numonyx

Numonyx was a semiconductor company making flash memories, which was founded on March 31, 2008, by Intel Corporation, STMicroelectronics and Francisco Partners.

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Open-source model

The open-source model is a decentralized software-development model that encourages open collaboration.

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Photomask

A photomask is an opaque plate with holes or transparencies that allow light to shine through in a defined pattern.

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Polyfuse (PROM)

A Polyfuse is a one-time-programmable memory component used in semiconductor circuits for storing unique data like chip identification numbers or memory repair data, but more usually small to medium volume production of read only memory devices or microcontroller chips.

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Positive feedback

Positive feedback is a process that occurs in a feedback loop in which the effects of a small disturbance on a system include an increase in the magnitude of the perturbation.

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RAM parity

RAM parity checking is the storing of a redundant parity bit representing the parity (odd or even) of a small amount of computer data (typically one byte) stored in random access memory, and the subsequent comparison of the stored and the computed parity to detect whether a data error has occurred.

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Random-access memory

Random-access memory (RAM) is a form of computer data storage that stores data and machine code currently being used.

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RC time constant

The RC time constant, also called tau, the time constant (in seconds) of an RC circuit, is equal to the product of the circuit resistance (in ohms) and the circuit capacitance (in farads), i.e. It is the time required to charge the capacitor, through the resistor, from an initial charge voltage of zero to ≈63.2 percent of the value of an applied DC voltage, or to discharge the capacitor through the same resistor to ≈36.8 percent of its initial charge voltage.

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Redundancy (engineering)

In engineering, redundancy is the duplication of critical components or functions of a system with the intention of increasing reliability of the system, usually in the form of a backup or fail-safe, or to improve actual system performance, such as in the case of GNSS receivers, or multi-threaded computer processing.

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Refresh rate

The refresh rate (most commonly the "vertical refresh rate", "vertical scan rate" for cathode ray tubes) is the number of times in a second that a display hardware updates its buffer.

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Resistor

A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element.

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Retronym

A retronym is a newer name for an existing thing that differentiates the original form or version from a more recent one.

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Robert H. Dennard

Robert Dennard (born September 5, 1932) is an American electrical engineer and inventor.

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Row hammer

Row hammer (also written as rowhammer) is an unintended side effect in dynamic random-access memory (DRAM) that causes memory cells to leak their charges and interact electrically between themselves, possibly leaking the contents of nearby memory rows that were not addressed in the original memory access.

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Samsung Electronics

Samsung Electronics Co., Ltd. (Korean: 삼성전자; Hanja: 三星電子 (Literally "tristar electronics")) is a South Korean multinational electronics company headquartered in Suwon, South Korea. Through having an extremely complicated ownership structure with some circular ownership, it is the flagship company of the Samsung Group, accounting for 70% of the group's revenue in 2012. Samsung Electronics has assembly plants and sales networks in 80 countries and employs around 308,745 people. It is the world's largest information technology company, consumer electronics maker and chipmaker by revenue. As of October 2017, Samsung Electronics' market cap stood at US$372.0 billion. Samsung has long been a major manufacturer of electronic components such as lithium-ion batteries, semiconductors, chips, flash memory and hard drive devices for clients such as Apple, Sony, HTC and Nokia. It is the world's largest manufacturer of mobile phones and smartphones, started with the original Samsung Solstice and later fueled by the popularity of its Samsung Galaxy line of devices. The company is also a major vendor of tablet computers, particularly its Android-powered Samsung Galaxy Tab collection, and is generally regarded as pioneering the phablet market through the Samsung Galaxy Note family of devices. Samsung has been the world's largest television manufacturer since 2006, and the world's largest manufacturer of mobile phones since 2011. It is also the world's largest memory chips manufacturer. In July 2017, Samsung Electronics overtook Intel as the largest semiconductor chip maker in the world. Samsung, like many other South Korean family-run chaebols, has been criticized for low dividend payouts and other governance practices that favor controlling shareholders at the expense of ordinary investors. In 2012, Kwon Oh-hyun was appointed the company's CEO but announced in October 2017 that he would resign in March 2018, citing an "unprecedented crisis".

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Selectron tube

The Selectron was an early form of digital computer memory developed by Jan A. Rajchman and his group at the Radio Corporation of America (RCA) under the direction of Vladimir K. Zworykin.

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Semiconductor device fabrication

Semiconductor device fabrication is the process used to create the integrated circuits that are present in everyday electrical and electronic devices.

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Semiconductor memory

Semiconductor memory is a digital electronic data storage device, often used as computer memory, implemented with semiconductor electronic devices on an integrated circuit (IC).

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Sense amplifier

In modern computer memory, a sense amplifier is one of the elements which make up the circuitry on a semiconductor memory chip (integrated circuit); the term itself dates back to the era of magnetic core memory.

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Silicon on insulator

Silicon on insulator (SOI) technology refers to the use of a layered silicon–insulator–silicon substrate in place of conventional silicon substrates in semiconductor manufacturing, especially microelectronics, to reduce parasitic device capacitance, thereby improving performance.

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Single event upset

A single event upset (SEU) is a change of state caused by one single ionizing particle (ions, electrons, photons...) striking a sensitive node in a micro-electronic device, such as in a microprocessor, semiconductor memory, or power transistors.

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SK Hynix

SK Hynix Inc. is a South Korean memory semiconductor supplier of dynamic random-access memory (DRAM) chips and flash memory chips.

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Soft error

In electronics and computing, a soft error is a type of error where a signal or datum is wrong.

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Static random-access memory

Static random-access memory (static RAM or SRAM) is a type of semiconductor memory that uses bistable latching circuitry (flip-flop) to store each bit.

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Sunnyvale, California

Sunnyvale is a city located in Santa Clara County, California.

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Synchronous dynamic random-access memory

Synchronous dynamic random-access memory (SDRAM) is any dynamic random-access memory (DRAM) where the operation of its external pin interface is coordinated by an externally supplied clock signal.

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System on a chip

A system on a chip or system on chip (SoC) is an integrated circuit (also known as an "IC" or "chip") that integrates all components of a computer or other electronic systems.

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Texture memory

Texture memory is a type of digital storage that makes texture data readily available to video rendering processors (also known as GPUs), typically 3D graphics hardware.

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Thomas J. Watson Research Center

The Thomas J. Watson Research Center is the headquarters for IBM Research.

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Threshold voltage

The threshold voltage, commonly abbreviated as Vth, of a field-effect transistor (FET) is the minimum gate-to-source voltage VGS (th) that is needed to create a conducting path between the source and drain terminals.

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Transistor

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power.

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TrueCrypt

TrueCrypt is a discontinued source-available freeware utility used for on-the-fly encryption (OTFE).

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Tseng Labs

Tseng Laboratories, Inc. (also known as Tseng Labs or TLI) was a maker of graphics chips and controllers for IBM PC compatibles, based in Newtown, Pennsylvania, and founded by Jack H-N Tseng.

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Tunnel diode

A tunnel diode or Esaki diode is a type of semiconductor that is capable of very fast operation, well into the microwave frequency region (up to), made possible by the use of the quantum mechanical effect called tunneling.

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University of Granada

The University of Granada (Universidad de Granada, UGR) is a public university located in the city of Granada, Spain, and founded in 1531 by Emperor Charles V. With approximately 80,000 students, it is the fourth largest university in Spain.

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Vertical blanking interval

In a raster graphics display, the vertical blanking interval (VBI), also known as the vertical interval or VBLANK, is the time between the end of the final line of a frame or field and the beginning of the first line of the next frame.

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Video card

A video card (also called a display card, graphics card, display adapter or graphics adapter) is an expansion card which generates a feed of output images to a display (such as a computer monitor).

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Video game

A video game is an electronic game that involves interaction with a user interface to generate visual feedback on a video device such as a TV screen or computer monitor.

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Volatile memory

Volatile memory, in contrast to non-volatile memory, is computer memory that requires power to maintain the stored information; it retains its contents while powered on but when the power is interrupted, the stored data is quickly lost.

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Wii

The Wii is a home video game console released by Nintendo on November 19, 2006.

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Williams tube

The Williams tube, or the Williams–Kilburn tube after inventors Freddie Williams (26 June 1911 – 11 August 1977), and Tom Kilburn (11 August 1921 – 17 January 2001), is an early form of computer memory.

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World War II

World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.

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Z-RAM

Z-RAM is a tradename of a now-obsolete dynamic random-access memory technology that did not require a capacitor to maintain its state.

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1T-SRAM

1T-SRAM is a pseudo-static random-access memory (PSRAM) technology introduced by MoSys, Inc., which offers a high-density alternative to traditional static random access memory (SRAM) in embedded memory applications.

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References

[1] https://en.wikipedia.org/wiki/Dynamic_random-access_memory

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