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Topic: Static RAM


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In the News (Sat 28 Nov 09)

  
  Static RAM Technologies
There wasn't enough RAM to cache large amounts of data, and the microprocessor was losing a lot of time to retrieving from the hard disk.
Typical RAM could not be used, however, as it required constant refreshing which was reducing performance.
The answer was to create small amounts of heavily reinforced memory known as Static Ram.
www.computermemoryupgrade.net /static-ram.html   (727 words)

  
  Static RAM - Search Results - MSN Encarta
Static RAM, in computer science, a form of semiconductormemory.
Static RAM storage is based on the logic circuit known as a flip-flop, which retains...
Static Electricity at the Franklin Institute Science Museum
uk.encarta.msn.com /Static_RAM.html   (109 words)

  
 Pitot
Although the static pressure is not always obtained at the pitot tube head assembly, it would seem that such an arrangement where both ram air and static air are taken from the same source area is a good one.
One advantage of a separate static source remoted from the pitot tube is the theoretical assurance that your altimeter and vertical speed indicator will continue to function even though the pitot tube may become blocked by mud daubers, ice, dirt or a forgotten pitot tube cover.
Its source of ram air pressure is a pitot tube mounted parallel to the longitudinal axis of the aircraft and in line with the slipstream (relative wing).
www.ch601.org /resources/pitot-static/pitot.htm   (1930 words)

  
  Static Random Access Memory - Wikipedia, the free encyclopedia
Static Random Access Memory (SRAM) is a type of semiconductor memory.
The word "static" indicates that the memory retains its contents as long as power remains applied, unlike dynamic RAM (DRAM) that needs to be periodically refreshed.
Fast SRAM is faster than DRAM and is used where speed is the most important requirement, as in the cache of a CPU and in digital signal processing circuits.
en.wikipedia.org /wiki/Static_Random_Access_Memory   (624 words)

  
 Static - Wikipedia, the free encyclopedia
Static variables may be constants, local function variables, or class variables depending on the context
Static linking, where identifiers are associated with data or sections of code during linking not run-time
Static Random Access Memory, a type of semiconductor memory which retains its contents as long as power is applied
www.wikipedia.org /wiki/Static   (256 words)

  
 Log in ....Tribune--Feature article
RAM is the storehouse in a computer where the operating system, applications and data in current use are housed so that it can be quickly accessed by the CPU.
RAM is much faster to read from and write to than the other storage devices in a computer such as the hard disk, floppy disk, and CD-ROM.
RAM is a short-term memory that concentrates on the current job in hand but the HDD is the long term memory which stores data for as long as you wish or until it crashes due to a fault.
www.tribuneindia.com /2002/20020422/login/main1.htm   (1940 words)

  
 What is Fast Guide to RAM? - a definition from Whatis.com
RAM (random access memory) is the place in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer's processor.
RAM is small, both in physical size (it's stored in microchip modules) and in the amount of data it can hold.
Static RAM is more expensive, requires four times the amount of space for a given amount of data than dynamic RAM, but, unlike dynamic RAM, does not need to be power-refreshed and is therefore faster to access.
searchmobilecomputing.techtarget.com /sDefinition/0,,sid40_gci523855,00.html   (3592 words)

  
 RAM types
RAM Short for Random Access Memory, RAM is memory chips used to temporarily store data until needed by the CPU.
RAM is located on a direct path to the CPU and is electrical (vice mechanical), so data held in RAM can be accessed much faster than data stored on the hard disk (a mechanical device).
Static RAM (SRAM) does not need to be refreshed, which makes it faster; but it is also more expensive than dynamic RAM.
www.gmtel.net /web/windowshelp/ram_types.htm   (968 words)

  
 Static random access memory utilizing gated diode technology patent invention
A new type of static RAM cell is disclosed that is based on a gated diode and its voltage amplification characteristic.
The cell combines the advantages of a static RAM, in which data refresh is not needed, and those of gated diode cells, which are scalable to low voltages, have a high signal to noise ratio, high signal margin, and tolerance to process variations, to form a single high performance static memory cell.
A number of embodiments of the static gated diode RAM cell, with different circuit configurations and transistor counts, are disclosed, including a basic, minimal cell consisting of six transistors and a gated diode with separate read/write ports to a cell with eight transistors and a gated diode.
www.freshpatents.com /Static-random-access-memory-utilizing-gated-diode-technology-dt20060907ptan20060198181.php   (1371 words)

  
 static - Search Results - MSN Encarta
cause of static in radio receivers, information theory and channel noise, reduction of static in radio receivers
Static RAM (SRAM), in computer science, a form of semiconductor memory (RAM).
Static RAM storage is based on the logic circuit known as a...
ca.encarta.msn.com /static.html   (136 words)

  
 PC memory types / types of RAM
Static RAM does not need refreshing because it operates on the principle of moving current that is switched in one of two directions rather than a storage cell that holds a charge in place.
Static RAM is generally used for cache memory, which can be accessed more quickly than DRAM.
RAM used to be availabe in 72 pin SIMM's, but are now most commonly found as 168 pin DIMM's.
www.lyberty.com /encyc/articles/tech/RAM.html   (740 words)

  
 What is your RAM
RAM is used by your operating system and other programs and games in order to store data that is required at speed.
RAM can be accessed by the computer for any piece of data in any cell of the memory bank.
Static RAM uses a type of Flip Flop to hold the data in the cell.
www.pantherproducts.co.uk /Articles/What_is/What_is_RAM.shtml   (856 words)

  
 Howstuffworks "Static RAM"
In static RAM, a form of flip-flop holds each bit of memory (see How Boolean Logic Works for details on flip-flops).
Static RAM is fast and expensive, and dynamic RAM is less expensive and slower.
So static RAM is used to create the CPU's speed-sensitive cache, while dynamic RAM forms the larger system RAM space.
www.howstuffworks.com /ram1.htm   (528 words)

  
 RAM definition by The Linux Information Project (LINFO)
Physically, RAM consists of a number of DRAM (dynamic RAM) chips, which are combined into modules that are plugged into slots on the motherboard (i.e., the main circuit board on a computer).
RAM access time is expressed in nanoseconds (millionths of a second), whereas HDD access time is expressed in milliseconds (thousandths of a second).
RAM technology subsequently improved at a swift pace as a result of the ability to produce ever finer circuit line widths and the consequent ability to cram more and more circuit elements into a single chip.
www.bellevuelinux.org /ram.html   (1230 words)

  
 MRAM - Wikipedia, the free encyclopedia
Continued increases in density of existing memory technologies, notably Flash RAM and DRAM, have kept MRAM out of the market to date, but proponents believe that the advantages are so overwhelming that MRAM will eventually become widespread.
Unlike conventional RAM chip technologies, data is not stored as electric charge or current flows, but by magnetic storage elements.
This makes DRAM the highest density RAM currently available, and thus the least expensive, which is why it is the majority of RAM found in a computer.
en.wikipedia.org /wiki/MRAM   (1179 words)

  
 Semiconductor memory operable as static RAM or EAROM - Patent 4403306
A semiconductor memory cell according to claim 1, wherein said control signal line is normally maintained at a reference voltage, and said memory cell is arranged to operate in a static RAM mode in response to application of an erase pulse of first polarity to said control signal line.
An object of the present invention is to provide a semiconductor memory in which a RAM function or an EAROM function may be selectively performed by utilizing positive and negative control pulses, in which power dissipation is small, and in which data-write and data-readout are performed with a single power source.
Data can be written into the static RAM at high speed, and the written data can be made nonvolatile at high speed by the write pulse having a fairly narrow pulse width.
www.freepatentsonline.com /4403306.html   (2196 words)

  
 Computer Consulting By Benjamin Fielder-RAM Info Page
RAM is considered "random access" because you can access any memory cell directly if you know the row and column that intersect at that cell.
RAM is usually sold in multiples of 16 megabytes: 16, 32, 64, 128, 256, 512, 1024 (which is the same as 1GB).
RAM is installed in a series of slots on the motherboard known as the memory bank.
www.benfielder.com /ram.htm   (3562 words)

  
 RAM - Uncyclopedia, the content-free encyclopedia   (Site not responding. Last check: 2007-10-12)
Although RAM is supposed to serve as your computer's short-term memory, in practice it rams into your computer's processing power (hence the abbreviation RAM).
There are two basic types of RAM - Static RAM which is static, meaning it can't be read from or written to, and Dynamic RAM which isn't really memory as it needs to be reminded of its contents every clock cycle.
As it turns out hacking RAM is impossible, unless you are hacking Dan's Dad's RAM (because he is dumb).
uncyclopedia.org /wiki/RAM   (583 words)

  
 STATIC CHIP TESTER
This arrangement is called static because the flip-flop retains the data indefinitely (as long as the power supply is connected to the chip).
The message "STATIC RAM TESTER IS ON" should be present for a few moments, then followed by the Title/Version message, and then reach the STANDBY screen, which prompts you to insert a static chip into the tester.
All STATIC RAM chips to be tested (regardless of their size) must be inserted into the ZIF socket in such a way, that the lower two pins are flush with the bottom of the socket.
www.memorytesters.com /sim1/sram.htm   (941 words)

  
 Static RAM   (Site not responding. Last check: 2007-10-12)
This type of RAM is common in that it is used in your L2 cache (I'll get to this in a second).
SRAM is also called NVRAM or Non-Volatile RAM (if you pull the chip out of its socket and lay it on the table, it still retains the information it had before you pulled it out).
L2 or Level 2 cache is RAM used specifically to hold data that was predicted by the caching algorithm to be needed next for processing in the the CPU.
www.pcwize.com /tech/computer/ram5.shtml   (320 words)

  
 RAM types   (Site not responding. Last check: 2007-10-12)
Static RAM (SRAM) does not need to be refreshed, which makes it faster; but it is also more expensive than dynamic RAM.
Both types of RAM are volatile, meaning that they lose their contents when the power is turned off.
RAM memory is speed-rated in 'nanoseconds', abbreviated 'ns'.
www.pcabcs.com /realtour/ram_types.htm   (501 words)

  
 Random Access Memory  (RAM)
SRAM is a type of RAM that holds data, placed within its cells, until the values are either overwritten or the power is removed.
This is opposed to Dynamic RAM (DRAM), which allows the data to exit by the cells discharging, every few milliseconds unless it is refreshed.
Just like static RAMs, the memory on a dynamic RAM memory chip is organized in a matrix formed by rows and columns of memory cells.
www.electronics.dit.ie /staff/tscarff/memory/ram.htm   (1008 words)

  
 Types_of_RAM   (Site not responding. Last check: 2007-10-12)
Static RAMs (SRAMs) are constructed internally using circuits similar to our basic D flip-flop.
The subsystem consists of the RAM, the RAM controller, and the bus (path) connecting RAM to the microprocessor and devices in the computer that use it.
At a RAM speed of 800 megahertz (800 million cycles per second), the peak data transfer rate is 1.6 billion bytes per second.
www.scit.wlv.ac.uk /%7Ec9921190/types_of_ram.htm   (1723 words)

  
 Inside Computers: An In Depth Guide - By TQ Team C006208
RAM is an acronym for Random Access Memory.
RAM is basically a form of electronically "remembering" something, and being able to access it randomly.
Unlike dynamic RAM, SRAM does not need to be refreshed, because both reading from SRAM is not distructive and there is no problem with a capacitor leaking.
library.thinkquest.org /C006208/data/memory-types.php?tqskip1=1   (644 words)

  
 COMPUTER ENVIRONMENT - RAM
Extended Data Out RAM is a form of DRAM that works by extending the time during which data can be read from memory.
RAM chips used to be sold as individual chips, but today several RAM chips are soldered together onto a plug-in board called a module.
A memory cache, sometimes called a cache store or RAM cache, is a portion of memory made of high-speed static RAM (SRAM) instead of the slower and cheaper dynamic RAM (DRAM) used for main memory.
www.computerschool.net /computer/ram.html   (1105 words)

  
 PCQuest : Technology : Next Generation RAM   (Site not responding. Last check: 2007-10-12)
RAM is categorized mainly as Static or Dynamic RAM.
The major difference between the two is that dynamic RAM needs to be refreshed many times per second by the processor or it loses all the stored data, whereas static RAM retains data even it is not refreshed by the processor.
The commonly known static RAM are Mobo cache, used in computers to function as cache memory, and Quad data rate RAM (a form of static RAM), used in switches and routers.
www.pcquest.com /content/technology/2007/107020401.asp   (1592 words)

  
 An illustrated Guide to RAM.
Warning: RAM and RAM chips is a very complicated, technical subject area.
RAM is controlled by the chip set on the motherboard, so you must install a type, which matches your motherboard.
RAM speed is measured in ns (nano seconds).
www.karbosguide.com /hardware/module2e1.htm   (1055 words)

  
 What is RAM? - A Word Definition From the Webopedia Computer Dictionary
RAM is the most common type of memory found in computers and other devices, such as printers.
Static RAM does not need to be refreshed, which makes it faster; but it is also more expensive than dynamic RAM.
To be precise, therefore, RAM should be referred to as read/write RAM and ROM as read-only RAM.
www.webopedia.com /TERM/R/RAM.html   (602 words)

  
 SRAM - Static RAM   (Site not responding. Last check: 2007-10-12)
SRAM (Static RAM) stores its data in capacitors that don't require constant recharging to retain their data; consequently, this type of RAM is faster than DRAM which results in a higher cost.
The tag RAM used as part of the cache must normally be faster than the actual cache data store.
Pipelined Burst Static RAM (PB SRAM) has an access time in the range 4.5 to 8 nanoseconds (ns) and allows a transfer timing of 3-1-1-1 for bus speeds up to 133MHz.
bugclub.org /eric/memory/sram.html   (243 words)

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