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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
Differentiate between volatile memory and non-volatile?
Non-volatile memory, nonvolatile memory, NVM or non-volatile storage, is computer memory that can retain the stored information even when not powered. Examples of non-volatile memory include read-only memory, flash memory, most types of magnetic computer storage devices (e.g. hard disks, floppy disk drives, and magnetic tape), optical disc drives, and early computer storage methods such as paper tape and punch cards.
Non-volatile memory is typically used for the task of secondary storage, or long-term persistent storage. The most widely used form of primary storage today is a volatile form of random access memory (RAM), meaning that when the computer is shut down, anything contained in RAM is lost. Unfortunately, most forms of non-volatile memory have limitations that make them unsuitable for use as primary storage. Typically, non-volatile memory either costs more or performs worse than volatile random access memory.
'''Volatile memory''', also known as '''volatile storage or primary storage device''', is [[computer memory]] that requires power to maintain the stored information, unlike [[non-volatile memory]] which does not require a maintained power supply.
Most forms of modern [[random access memory]] are volatile storage, including [[dynamic random access memory]] and [[static random access memory]]. [[Content addressable memory]] and [[dual-ported RAM]] are usually implemented using volatile storage. Early volatile storage technologies include [[delay line memory]] and [[Williams tube]].
RAM=Volatile memory
ROM=NON-Volatile memory
Where is CPU and memory are located?
output device
No
The CPU and memory are located on the motherboard
How much does a 1GB of RAM cost in India?
Improved(and correct) answer:
RAM price depends on what kind of RAM you want, and what company makes it, and who you buy it from. That said, there really isn't much difference in the maker.
You can find the list of prices here: http://www.priceindia.in/computer/ddr-ram-price-list/
Go through it, find something that works for you.
RAM is probably more important than processor speed now. We've reached a point where all processors are fast. So now, the more RAM you have, the faster your computer works.
You could have a poor, or an integrated GPU, and still have fast performance on games and intensive programs just by having enough RAM.
hi,,,,the price of 512 mb is 2100rs you will want to purchase 2 for 1 gb;;;;;;there is not of 1 gb:: i have 1 gb ram::::not so much different:::::::i sugest you to purchase nvidia geforce 256mb:::::to play game::::::ram is not so important for tadays games
Arrange these units in order from smallest to largest kilobyte gigabyte megabyte?
bit byte kilobyte megabyte gigabyte terabyte
Where can you purchase RAM for a Compaq Presario 5BW130 desktop?
The Compaq Presario 5BW130 desktop supports a maximum of 512 MB of RAM using two 256 MB PC100/PC133 SDRAM modules. These modules aren't carried on the sites of most major online retailers, but can easily be purchased on eBay. A reference retailer can be found below.
Note that for guaranteed compatibility, you should purchase "low density" modules. High density modules are cheaper, but aren't compatible with all systems (especially those with Intel chipsets) and tend to be slower.
What is the explanation for the memory organization of 8086?
Two types of memory organization are used:
Linear addressing where the entire memory is available to the processor at all the times ( Motorola 68000 family).
Segmented addressing where the memory space is divided into several segments and the processor is limited to access program instructions and data in specific segments.
The return address.
When a computer is turned off what happens to the data on a Hard Drive?
The entire point of a hard disk is that nothing happens to your data when it's turned off. Data is stored by magnetizing tiny areas of the surface of the disk. They don't need electricity to stay magnetized.
1000000 bytes equals 1 megabyte yet 1024 megabytes equals 1 gigabyte?
There are two definitions. The official definition says: * 1,000 × 1,000 bytes (B) = 1,000,000 B = 1 megabyte (MB) * 1,000 (MB) = 1 gigabyte (GB). This is the definition used for hard drives, DVDs, networking, and everything else. There is also another definition based on 1024 instead of 1000, so 1,024 "megabytes" are equal to 1 "gigabyte". These are used for memory. These are more correctly referred to with MiB and GiB instead of MB and GB: * 1,024 × 1,024 B = 1,048,576 B = 1 MiB * 1,024 MiB = 1 GiB
What is the purpose of memory in a computer?
Hard-drives store large amounts of data for extended periods of time. RAM stores smaller amounts of memory only while it is needed. Data stored in RAM can be accessed much faster than data stored in hard-drives. This is necessary because the processor can only interact with a few numbers at a time. An example might be when running a game - all the most necessary game data is loaded from the hard-drive into RAM. Then, as the game runs, the processor rapidly pulls small bits of data from RAM, performs calculations, and then quickly passes it back. The results are then displayed (through the video card) on the screen.
What cache memory is designed inside the CPU?
L1 and L2; Many years ago L1 was the only cache memory integrated into the CPU (processor) and L2 had to be added to the motherboard. Currently (as of year 2013), CPUs implement both L1 and L2 cache in the casing of the processor. Thus, processors (CPUs) ship with amounts of L2 cache independent for each processor core.
CMOS is a small component cluster on a computer motherboard which hold a very small amount of simple information. It has a large button battery which supplies the needed power to preform one of its main functions: Keep date and time. It also holds vital system settings.
Basicly, It is a small memory componant, but users can not store data on it aside from system boot settings.
Can a motherboard accept 2 different RAM speed?
Yes, you can use different speed DDR2 RAM, but the faster one will be clocked down to the speed of the slowest one, so your not taking any advantage from the faster speed of one of those...however, this mix can probably cause instability (not in all cases), so if you can, get the RAM at the same speed :)
How is information maintained in memory?
if you are talking about ram then all information get lost when you turn off computer. in case of rom, the information is permanent until we erase it forcefully..
It depends on the motherboard. If you can find out what type of motherboard you have, you can look up what type of memory and how much of it you can install into the memory banks. Keep in mind that the operating system that you have may limit how much of the installed memory you can actually use.
The most important thing to do is to ground yourself before handling the RAM. To do this touch a metal part of your computer. This will ground you. Alternatively you could wear an anti-static wrist band which keeps you grounded at all times.
Sdram or edo which would result in better performance?
If you had to choose one then you would chooes SDRAM. it is faster than EDO
Which is the most common drive letter where Windows stores most data and programs?
C: is most common.
Disadvantages for using DRAM for the main memory?
Disadvantages of DRAM
Dram having have access time compared to SRAM.
It needs extra circuit to refresh the cell which refreshes the Dram thousand times per second. So it requires more power.
