Computer Memory

Conventional memory refers to the memory reserved to run DOS programs in a computer system. DOS only uses the first 640 kb of memory in a PC.

There are too many options to list them.

If you ask a question like this again, try to describe it as exact and detailed as possible: When does your computer halts during booting? (while checking the devices, loading the operating system, ...) Did you change something on the computer since the last time it worked? Have you experienced problems with the hard- or software used earlier? Is something plugged in to the computer? (USB Devices are a common cause of booting problems)What hardware and OS are you using?

400,000 cycles a second.

Most likely the answer is: Yes. It, probably, won't run at the 3200 speed, however. Generally speaking it is backward compatible. I would check it out at http://www.crucial.com just to be safe. Good luck.

its primary or main memory. all the programs(active or programs currently running on the processor) including operating system reside in RAM .

The processor could keep track of what locations are associated with each process and

limit access to locations that are outside of a program's extent. Information regarding the extent

of a program's memory could be maintained by using base and limits registers and by

performing a check for every memory access.

The amount of memory required by a computer system depends upon the main functions that the system will be expected to preform.

A standard desktop system only being used for internet and office use could happily work with a low amount of memory. If it where running Windows XP then 256MB would be enough memory for these functions.

A desktop system that is intended to be used for purposes such as video editing and gaming however would require significantly more memory. A system running windows Vista and intended for gaming would require a minimum of 2GB (2048MB) to function smoothly.

Systems such as servers that are intended to handle huge amounts of data would not be uncommon with memory in excess of 16GB. Supercomputers will have several Terabytes of memory available.

the simple answer is no and ECC will not work on alot of MOBO's

ROM (Read Only Memory)

Also, depending on motherboard design,

RAM (Random Access Memory)

and with modern computers SSDs (Solid State Drive) chips can also be located on the motherboard or plugged into it directly.

The primary difference if the permanence of the data held in the memory. When talking about volatile and nonvolatile memory in the context of computers, we're usually referring to RAM(volatile) and the hard drive(nonvolatile). Volatile means that the memory must be receiving power in order to hold its contents. RAM must be fed power or the data on the RAM will be lost.

A hard drive is nonvolatile, meaning it does not need power to keep data stored on it. This is why you install programs and photos etc to the hard drive. If you put them on RAM, it would disappear every time you turned off the PC!

No it's not.

It's volatile memory (That which looses it's data if the power is interrupted).

you're Mr nothing unless you're Mr mental because its literally impossible. TxT

ROM advantage is that generally once it is written to it will be there forever. ROM are often used in fixed situation like the chip that runs a dishwashes, aninexpensive writswatch, etc also, it does not require a constant source of electricity.

The data goes to the printer so it is an output device.

The new DIMM is not properly seated. Turn off the PC and reseat the Dimm

RAM is used for storing the start-up instructions on the computer. This serves as the memory of the computer which will retrieve such instructions.

ROM or read only memory is used for the system BIOS and build-in operations. The ROM can only be read and not written to. A hard disk, on the other hand, is a magnetic medium which is designed for continuous reading and writing.

Permanent storage tends to be slow. For disks, there there is rotational delay while the disk rotates beneath the read/write head, and seek delay as the head moves across the disk from track to track. Tape is even worse, and little used anymore. The memory serves as the storage area where programs and data are loaded. The programs are executed from memory. Each program instruction is loaded into the central processing unit (CPU) and executed there. Instructions are commands, such as add the contents of two registers, or branch to a location in the memory, or fetch the data at a particular location in memory, etc.

Memory tends to be much smaller than disk storage. Currently typical home PC disk capacities range from a hundred gigabytes up to a terabyte (a trillion bytes). A typical digital photograph takes up approximately 2 megabytes. In a hundred gigabytes you could store roughly 50,000 photographs. But computer memory generally ranges from 256 megabytes to a gigabyte. Some of this space will be consumed by operating system software, and some of it by programs. Programs that are executing in the background take up some of the computer's memory, like the program that checks your e-mail, and so on. Image editing software takes up a lot of memory space. So if your computer has 512 megabytes of RAM (random access memory), maybe half of that would be left over for data, or less. JPG images are probably translated into bit mapped format in the computer's memory to make manipulation easier--which would leave even less space--maybe room for only a handful of photos. You will get an idea because the computer will suddenly start running a lot slower when too many images are loaded into memory, as some of that memory will be swapped back out to disk as you switch between tasks.

ROM is Read Only Memory. Normally, data is fabricated into the ROM chips by the semiconductor manufacturer. Special mask(s) have to be made to store this data.

Besides ROM chips there are PROM chips, where P stands for Programmable. In these chips, data can be stored by the end user. EPROM is Erasable PROM. A new type of ROM is OTP ROM (One Time Programmable).

Computer memory comes in multiples of 2.

The nearest to 1,000 that we can get with powers of 2 is 1,024..... 210...

1,024 bytes = 1 kilobyte

1,024 kilobytes = 1 megabyte

1,024 megabytes = 1 gigabyte

so, 3 gigabytes = 3,072 megabytes.

The capacity of the human brain cannot be defined in binary computer units, as the brain does not use binary addressing. As knowledge, feelings, and memories do not have a standard format, it would be impossible to determine how much space it would take to place this data in binary form.

• it helps to operate the application software and the system software of hte computer