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Computer Memory
The computer memory is a physical device used to store data or programs for use in a computer. Some types of computer memory include RAM (random access memory), ROM (read-only memory), and page cache.
4,434 Questions
What is the difference between the three cache memory?
This question should be more specific so that someone can more easily and accurately assist you. However, i will attempt to answer your question assuming that your are asking about the L1, L2, and L3 cache memory types.
L1, L2 and L3 (or level 1, level 2 and level 3) are different memories seperate from the processor, but it is the memory more easiest and quickly accessible by the processor, or cpu. These memories are used by the processor to store common instructions, images..etc. so that it can easly and quickly access it whenever required to. First the processor checks the L1 cache memory (usually the level with the lowest amount of memory), if it doesn't find what it needs there then it searches through the L2 and then L3.
If what the processor needs isn't in the cache memory, then it will check the HDD and RAM.
How many address lines are needed to access 256KB of main memory?
The number of address lines needed to access N-KB is given by log2N Then the number of address lines needed to access 256KB of main memory will be log2256000=18 address lines.
How can you compare the human brain to a computer?
It is not. They both have features that are good: A computer can complete mathmatics and calculations way faster than the brain A computer can not think or act on instinct By using a combination of both of these forces we can make the world better.
What is the bandwidth supported by a 200 pin SODIMM module?
200 pin DDR2 SODIMM is likely going to be between 200-800mhz in speed.
What kind of RAM should you get for your compaq presario c300?
This type of laptop is a Compaq Presario series. The series comes stock with 512 mb of RAM.
The memory bank has two slots for memory modules. The factory memory module takes up one slot and is removable for upgrading.
This series of laptops can hold a maximum of 2 Gigabytes of RAM.
These laptops use SODIMM laptop memory chips, and it does support dual channel functionality.
Most memory manufacturers have these models listed as supporting pc4200 RAM modules; however it is very likely that pc5300 modules also work without issues in these models - many RAM manufacturers now sell this speed of RAM for these machines, and claim it has been tested as compatible.
I suggest contacting either Compaq/HP, or the memory manufacturer to verify which speed (pc4200/pc5300) you need before the install if at all possible. In most cases, this shouldn't be an issue so long as both the modules you install are the same speed; but check first indeedy!
The cheapest, and most effective way to upgrade the memory in these laptops is to purchase (2x) 1 Gigabyte memory modules. Remove the 512 mb module which comes with the machine, and replace the new modules into both slots to acheive the maximum allowance of 2 Gigabytes usable RAM.
Keep in mind that the Operating System may not register the full 2 Gigabytes of RAM when you view the system specifications; however it will use as much of the 2 Gigabytes of RAM as possible during normal operation. This is common with newer OS/RAM combinations and should not be seen as a malfuction.
How do you download pictures from computer to memory stick?
By "memory stick", I assume you mean flashdrive. If you want to transport pictures from your computer to your flashdrive, stick your flashdrive into the computer, and open up your pictures. When your flashdrive is in place, another small window should open up with a list of options for you. Among these options should be "open files" or something like that. Click on it, and it will open up any files on the flashdrive (If there is nothing on the flashdrive, there will be words at the top, saying "no files on flashdrive" or "flashdrive is empty" or something like that). Go to your pictures file, and drag any pictures you want from the file to the flashdrive. The End.
What is the permanent memory that remains in the computer even when it's turned off?
ROM, read only memory.
What Sandra module(s) can be used to display information about system memory?
mainboard, memory usage tool
What is a unit of computer memory equal to 1048576 bytes or 1024 kilobytes called?
1 megabinary byte (MiB) or mebibyte (MiB) = 1,024 kilobinary bytes (KiB) = 1,048,576 bytes
How much memory on a memory chip of PC3-16000?
PC3-16000 is a speed rating, not a size rating. It could be any size that was manufactured for this speed.
Amount of RAM recommended for most systems today is measured in?
RAM is usually measured in GigaBytes or GB. The amount of RAM is usually quite high in the numbers already and quite a few computers are reaching the next level, TeraBytes or TB. There is usually only 1 TB if it is that high, though.
What are advantages of ddr2 over ddr1?
Memory Speed and overheating
There are a number of upgrades that come with the new DDR2 technology over DDR1 memory. DDR2 memory is of course faster, and will ultimately reach clock speeds of 667MHz or higher as opposed to the top functional speed of DDR1 at 400MHz. The higher speeds of DDR 2 memory allow it to have up to 10.6GB per seconds of throughput - quite a bit more than DDR1 memory which maxed at 6.4GB per second. The feature that makes these higher speeds practical is the reduced power consumption of DDR2, which runs at only 1.8 volts. Heat is one of the real banes of IC's, and the faster you try and clock a chip the hotter it runs and the less reliable it gets. One of the speed limitations of DDR1 was that at 2.5 volts created too much heat and was simply too hot to run consistently at speeds greater than 400MHz. DDR2's 1.8 volts combined with a much smaller (FBGA) chip package goes a long way towards solving the heat issue at higher speeds.
Cas Latency issues
DDR2 is also reversing the trend of faster and faster CAS Latency. SDRAM was originally CAS 3 though CAS 2 became popular later on with PC100 and in some PC133 modules. The problem with putting the burst cycles so close together is that the faster you push the chips, the more unstable they become. This is why, after moving to CAS 2 in a lot of PC100 components, the standard for PC133 reverted to CAS 3. DDR1 came out with two different speeds CAS 2 and CAS 2.5, though there were some chips that were available with 3-3-3 timing as well. There were some problems when DDR was released getting the modules to work consistently, and when DDR 400 started becoming available there were problems again, some of them related to Latency. The industry seems to have recognized this, and the JEDEC standard for DDR 2 is CAS 3 and even CAS 4 in some cases. This will go a long way towards making the modules more stable. There will be a small decrease in number of functions a stick will be able to perform per second, but the decrease will be so minor as to be unnoticeable and will be more than made up for in dramatically increased stability.DDR1 MemoryDDR2 MemoryModule package184-pin DIMM/ 200-pin SODIMM240-pin DIMM/ 200-pin SODIMMSpeeds (in MHz)200, 266, 333, 400400, 533, 667Voltage2.5 volt1.8 voltChip packageTSOP/BGAFBGAModule BandwidthUp to 6.4GB/secondUp to 10.6GB/secondChip densitiesUp to 1GbUp to 4GbCAS Latency2/2.53/4
Which bus is used to access a specific memory location?
The memory bus
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Where do you put the memory card in the memory slot on a dell laptop?
at the laptop store or it should of came with your laptop
What is the purpose and function of a memory stick?
Memory sticks can be used for a variety of functions... You can use one:
To move files, programs etc from one computer to another.
As extra RAM to give your computer more memory to use.
As an MP3 player (some memory sticks are fitted with a head-phone socket)
If your talking about computers.. RAM.
DDR or DDDR I think you call it. :)
Will a ddr3 1066 RAM work in a ddr3 1800 slot?
Of course, it could be run. It doesn't actually matter what type of ddr3 ram it is but what matters is the slot type and the ram type. DDR1 DDR2 DDR3 all have different slots. So as far as I think, It is going to work. Check it out and tell me..
How many pins does a DDR2 SO DIMM have?
2.66" 200-pin SO-DIMM contains DDR2 SDRAM. One
notch is near the side of the module.
What is a temporary holding place for data and instructions?
I think the answer you're looking for is disk storage... But I'm not positive!
