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Topic: Internal memory


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In the News (Fri 9 Jan 09)

  
  Computer system controller having internal memory and external memory control - Patent 6118462
The present invention relates generally to an optimized memory architecture for computer systems and, more particularly, to integrated circuits that implement a memory subsystem that is comprised of internal memory and control for external memory.
Part of this memory subsystem is a frame buffer that provides the output to the display, and part of this subsystem may be used for off-screen operations.
The memory channel data switch 406 is connected to internal memory subsystem 450 through IMC channel 425.
www.freepatentsonline.com /6118462.html   (7969 words)

  
 memory
The static memory allocation may be through absolute addresses or through PC relative addresses (to allow for relocatable, reentrant, and/or recursive software), but in either case, the compiler or assembler generates a set of addresses that can not change for the life of a program or process.
The first byte of physical memory is at address 0, the second byte of physical memory is at address 1, the third byte of physical memory is at address 2, etc. Some processors use word addressing rather than byte addressing.
Virtual memory is a technique in which each process generates addresses as if it had sole access to the entire logical address space of the processor, but in reality memory management hardware remaps the logical addresses into actual physical addresses in physical address space.
www.osdata.com /system/physical/memory.htm   (3581 words)

  
 80C51 Memory Map   (Site not responding. Last check: 2007-10-12)
The Internal data memory is the RAM which the programmer will most often use to store variables and operands and is available to every 80C51 MCU.
That is, code memory is accessed every time an instruction is to be fetched, whereas the data memory is accessed whenever the instruction being executed specifies to do so.
However, the fourth instruction is addressing external memory, the fifth is accessing the code memory and the sixth will be accessing the first bit on the 128 bit addressable space.
www.mcumaster.com /8051/Resources/Memory_Map/memory_map.html   (1175 words)

  
 8052.com - 8051 Tutorial: Types of Memory
Internal RAM is volatile, so when the 8051 is reset this memory is cleared.
The 128 bytes of internal ram is subdivided as shown on the memory map.
This fact severely limits the 8051s stack since, as illustrated in the memory map, the area reserved for the stack is only 80 bytes--and usually it is less since this 80 bytes has to be shared between the stack and user variables.
www.8052.com /tutmemor.phtml   (2055 words)

  
 Integrated digital signal processor/general purpose CPU with shared internal memory - Patent 5630153
The information stored in the internal memory array includes operands utilized in the execution of the DSP algorithm and selected instructions and data utilized by the general purpose CPU either for controlling the execution of the DSP algorithm or for executing its own general purpose tasks.
That is, in accordance with the concepts of the present invention, the internal memory array 22 serves as a shared resource for both the DSP module 16 and the general purpose processor 18.
In the illustrated embodiment, the internal memory is shown as accessible by the DSP module 16 and the general purpose processor 18 via the internal bus 20.
www.freepatentsonline.com /5630153.html   (6287 words)

  
 Slava Oks's WebLog : Memory Pressure - Classified
Internal memory pressure might cause OOM conditions and eventual process's crash.
If both of the memory resource notifications are not set it means that system is in stable state and processes shouldn’t either grow or shrink.
Depending on its memory manager there are several ways for a process to get into physical internal memory pressure.
blogs.msdn.com /slavao/archive/2005/02/01/364523.aspx   (1269 words)

  
 Slava Oks's WebLog : SQLOS's memory manager: responding to memory pressure   (Site not responding. Last check: 2007-10-12)
Memory pressure is categorized into two major groups: VAS and physical.
Physical memory pressure could be imposed by OS, we called external or it could be imposed by the process itself we call it internal.
Understanding and diagnosing the types of memory pressure SQL Server is exposed to is very important part of managing your server and writing applications for it.
blogs.msdn.com /slavao/archive/2005/02/19/376714.aspx   (1394 words)

  
 EETimes.com - Minding network queues with FPGAs and memory
Depending on the depth of the queue required, the external memory can be segmented into submemory blocks, which are controlled by each entry in the memory block representing a single queue and FIFO buffer.
During FPGA startup, the internal memory structures are configured to optimally manage the address space for each separate queue.
The amount of external memory required depends on the specific system application and is governed by the number of queues required, the depth of the queues and the throughput of the system.
www.eetimes.com /story/OEG20040205S0021   (1308 words)

  
 Computer storage - Wikipedia, the free encyclopedia
Cache memory is a special type of internal memory used by many central processing units to increase their performance or "throughput".
Some of the information in the main memory is duplicated in the cache memory, which is slightly slower but of much greater capacity than the processor registers, and faster but much smaller than main memory.
The memory bus is also called an address bus or front side bus and both busses are high-speed digital "superhighways".
en.wikipedia.org /wiki/Memory_(computers)   (2717 words)

  
 Primary storage - Wikipedia, the free encyclopedia
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.
en.wikipedia.org /wiki/Internal_memory   (391 words)

  
 R520, Radeon X1800 has 512 bit internal memory controller
This memory is available at Samsung and ATI prototype showed here is using those 1600 MHz 512 Mbit chips.
Geforce 7800 GTX and all Nvidia 6800 generation cards are using 256 bit memory and 256 bit memory controller so this kind of comes as a surprise to us.
ATI won't be able to take the full advantage of 512 bit memory and that the memory will operate as a 256 memory but will save some cost to ATI.
www.theinquirer.net /?article=26168   (297 words)

  
 Mobile-review.com Review GSM-phone Siemens SX1. External and internal memory, processor
Now if since we talk about the memory, let’s end our story by telling you about the internal memory, since there is another myth related to it.
In case you want to optimize the memory amount – use third party software, but I believe that this is not worth it, since only 100-200 Kb of memory can be freed up.
Working speed with internal memory is not a weak point in the system, that’s why we will not describe it.
www.mobile-review.com /review/siemens-sx1-memory-en.shtml   (875 words)

  
 Internal Memory - 4
The particulars are i = j mod m; where i = cache line number, j = main memory block number, m = number of lines in cache.
If there is unified cache then when execution unit performs a memory access to load and store data request is submitted to unified cache, if at same time instruction prefetcher issues a read request to cache for an instruction request will be temporarily blocked.
Request packets sent by controller(master) initiate memory transactions; they contain header, address, checksum and for write command the data to be written.
www.ship.edu /~jcthom/schedule/architecture/stallings/ch4.html   (3445 words)

  
 Computer Memory
MEMORY is a term that is used to represent storage that has "almost" instantaneous access by the CPU or other processor.
However, the memory we speak of the most often is Random Access Memory (RAM).
Once a program is in memory, the computer will evaluate inputs from many devices and react accordingly.
www.footefamily.org /train/memory.htm   (1267 words)

  
 Smartphone & Pocket PC magazine Forum - HP IPAQ 4355 Internal Memory
Even though the apps reside on the SD, what amount of internal memory is necessary to run apps on SDs?
To free up some working memory, go into the Memory control panel applet and stop the program.
As for increasing internal memory, PPC Tech's does it, but they generally charge an arm and a leg.
www.pocketpcmag.com /forum/topic.asp?TOPIC_ID=8530   (307 words)

  
 PCstats Q & A - Internal memory issues - PCSTATS.com
My question is this: my motherboard has an option for 'memory speed', which is a MHz indicator like '400' 533', 667' etc. This does not seem to have any perceptible effect on performance according to my benchmarks.
My friend told me this represents the speed of the memory, which makes sense, except that I though that is what the FSB measurement was for.
Your DDR2 memory is probably rated for a higher speed though, either 533 or 667MHz DDR (266 or 333MHz).
www.pcstats.com /NewsView.cfm?NewsID=44161   (390 words)

  
 Internal USB 2.0 or SATA PCMCIA hard drive and ATA Flash reader/writer from Addonics
By using an optional CF DigiAdapter or the Addonics 4-in-1 DigiAdapter, the Internal UDD can also be used like a regular floppy drive to read/write to other popular Flash media - CF-I, CF-II, Smart Media™, Memory stick™, Secure Digital Card™, Multimedia Card™ or Micro Drive™.
Due to large number of flash memory types and suppliers, actual data transfer rate may also vary from brand to brand.
The bottom line - The Addonics Internal UDD is reasonably priced at $69, it is incredibly fast when used with a full-speed USB 2.0 interface and a fast memory card...
www.addonics.com /products/flash_memory_reader/aeiuddu.asp   (680 words)

  
 Flash Memory !
The internal data storage memory on any Windows CE PC Companion is different.
The internal storage memory is still pretty safe, but it's "volatile" and relatively limited.
Again, the benefits of flash memory cards are that they provide extra non-volatile data storage for your PC Companion.
www.pocketpcmag.com /may99/flashmem.htm   (1383 words)

  
 Playing MP3's From Internal Memory - Brighthand.com Forums
I have a Palm TX, and one of the first things I noticed when I got it was that there are two default MP3 files on the internal memory.
My expansion card is only 512 MB, and I have about 80 MB of unused internal memory, so this would be a great help.
There is a hidden memory partition on the TX which acts like an SD card.
forum.brighthand.com /showthread.php?t=230622   (782 words)

  
 Amazon.com: Garmin GPSMAP 76 12 Channel Handheld GPS Receiver with 8MB Internal Memory: Electronics   (Site not responding. Last check: 2007-10-12)
The unit also has 8 MB memory for storing maps from optional CD-ROMS; available maps include topographical maps, BlueChart marine cartography maps, as well as city maps with detailed information on city streets and points of interest.
This memory is preloaded from the factory with worldwide cities (populations greater than 200, 000) and nautical navigation aids such as lights, buoys, sound signals and day beacons.
I find the memory capability in the Map76 is adequate for uploading maps for day trips and the balance with the battery drain is also sufficient.
www.amazon.com /Garmin-76-Handheld-Receiver-Internal/dp/B00005B4BJ   (2695 words)

  
 internal flash reader/writer from Addonics
The Addonics Internal DigiDrive™ is the perfect device to add flash memory storage capability to any Desktop PC, Window based equipment or Kiosk.
The Internal DigiDrive™ share the same award winning feature of the Pocket DigiDrive™.
It is a solid state drive without any moving parts and is designed to plug into any internal or external USB 2.0/1.1 port on your computer.
www.addonics.com /products/flash_memory_reader/internal_dd.asp   (362 words)

  
 The Memory Hole > Internal DuPont Documents on C8
The court voted 5-0 Thursday to unseal the internal documents, which include a November 2000 memo written by in-house DuPont lawyer John R. Bowman that recommended "getting out in front and acting responsibly (to) undercut and reduce the potential for punitives." The ruling upholds a decision by the trial court judge.
Residents of southeast Ohio and West Virginia claim the plant along the Ohio River contaminated water supplies with a chemical called sperfluorooctanoate, also known as C8.
Technical note: In response to my inquiry, The Memory Hole received these documents from the Administration Office of the West Virginia Supreme Court of Appeals.
www.thememoryhole.org /corp/dupont/dupont_c8.htm   (547 words)

  
 external memory aids
For example, one study found that waitresses who went from table to table to take drink orders were much better at remembering the orders if they visualized the drinks in particular locations rather than when they wrote the orders down
It is perhaps the time pressure in that kind of situation that makes an internal strategy more effective than an external one.
Permission is granted to copy and distribute this material in educational settings, provided that the author is advised and due acknowledgment is made of the source on any handouts.
www.memory-key.com /EverydayMemory/external_aids.htm   (598 words)

  
 Chapter 1 Introduction
Partly because internals information can be useful for tuning and troubleshooting.
Of particular interest are the library cache and the memory allocation heaps used for the shared pool and session memory.
Although there is much more to Oracle internals than this small book covers, these chapters provide the foundation that you need for advanced performance tuning.
www.oreilly.com /catalog/orinternals/chapter/ch01.html   (1359 words)

  
 Old Question New: How to add to internal memory - Brighthand.com Forums
Or should I just upgrade to the TX or Lifedrive (But man will I miss the camera and voice recording.
It looks like MJ integrates with your PDA's inernal memory and redirects it to use the SD card for all kinds of storage, sort of telling it to use the SD card as its memory?
For Documents to Go there is a utility on the Dataviz website to help you which files can be moved to SD card (dataviztech.prc).
forum.brighthand.com /showthread.php?t=224504   (933 words)

  
 The 650 has a hidden internal "memory card" - TreoCentral.com
It turns out there is a "hidden" memory card on the Treo 650 that looks just like a second SD card to the applications, except that it is hidden from normal view.
As we all know, the internal 32 megs of flash is divided into two areas, the "ROM" and the "RAM".
Actually, I think DrWowe is right on the NVFS - the amount of free memory in my BUILTIN drive mirrors the amount of free RAM in the Internal when I compare the 2 in the Filez Information screens.
discussion.treocentral.com /showthread.php?t=82285   (1437 words)

  
 IGN: PS3 Internal Memory Cards for Backwards Compatibility Hands-on
You can then create both PSone and PS2 memory cards, give them a name and assign the slot that they're assigned to.
The Internal Memory Cards carry the same storage space as the official Sony cards for each system, so 15 blocks for PSone games and roughly 8MB for PS2 titles.
The PlayStation 3's Virtual Memory Card support directly mimics a PlayStation 2 to the T, meaning that you can only have two Memory Cards inserted at any one time, though you can assign which Internal Memory Cards go in which slot.
ps3.ign.com /articles/745/745241p1.html   (297 words)

  
 Installing on internal Memory vs Storage Card - TreoCentral.com
I didn't know if installing something on the card would make the Treo run slower especially if it is something like PocketBreeze which is right on the Today screen all of the time.
Besides the today screen, any app that needs to run in the background needs to be in main memory.
Magic button is always on, so it needs to be in main memory.
discussion.treocentral.com /showthread.php?t=126491   (340 words)

  
 52-in-1 USB 2.0 Internal Memory Card Reader & Writer with Front USB 2.0 Port (Black, Retail)
This internal USB 2.0 Card Reader/Writer (CRW) device fits into 3.5¨ drive bay to save the desktop space, it provides an ideal solution for those who want the convenience and mobility to read and write the most popular memory cards.
This ingenious device connects to a motherboard's internal USB header port (most PII and newer motherboards have them, and most aren't used).
It can also be used as an effective hard drive to transmit large amount of data immediately between the memory cards and the host computer through USB 2.0 interface.
www.xpcgear.com /sabrent52in1.html   (721 words)

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