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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
RAM and ROM are both forms of random access memory True or False?
True.
Although RAM is an acronym for Random Access Memory, both RAM and ROM are in fact examples of random access memory. That is because random access memory is memory that can be read or written in any arbitrary order, as long as you address the correct unit of memory. By contrast, sequential access memory, such as a tape, must be accessed in sequence - you must read or write through, or mechanically position, the tape until you reach the unit of memory you wish to access.
In computers, RAM is typically (but not always) both volatile and read/writeable. ROM is typically (but not always) read-only and non-volatile. Volatile means the stored information is lost when the computer is shut off, non-volatile means the stored information persists, usually indefinitely, even after the computer has been turned off.
How does BIOs maintain its memory when the computer is off?
The BIOS itself is stored in ROM which does not require any power to maintain its contents. The BIOS setting are stored in a very low power CMOS SRAM with a battery to keep it powered up even when the computer itself is switched off (the BIOS does nothing to maintain this, it is done in the hardware).
What is a good number of gega bites for your computer memory?
It depends on what operating system you have and what you want to do. If you have Vista, then you want at least 1 gb of ram. If you have XP, then 512 mb of ram would be sufice. If you like to play memory intensive games like World of Warcraft and such games, then you should have 2 gb of ram
How much RAM is needed in a computer to send 250000 emails in 1 hour?
Impossible to answer without knowing the configuration and other components of the computer Yes, the sizes of the emails, etc. would need to be known as well as the connection speed as this will most likely be the deciding factor. If you are sending out 250000 emails in an hour you are most likely spamming thouhg
RAM stands for random access memory. It helps the processor work more efficiently by copying specific files from the hard drive onto it so the processor can get to them faster. It basically stores temporary data for the computer while it's running and is wiped clean when it's shut down.
What is the difference between 2GB dual channel ddr2 sdram and 3GB dual channel ddr2 sdram?
1 GB. Note that there is no such thing as dual channel memory, although computer stores may sell it as that. The dual channel feature is a function of the memory controller. You need two matching memory modules in order for dual channel to work.
Why is there a need for a separate memory bus in addition to main bus?
Having more than one memory bus in addition to the main bus has the main benefit of speeding up data transfer. A memory bus is used to transfer data to and from the memory, or from the CPU to other components. If you have more than one memory bus (say, for each of the peripheral devices you have), you will certainly have a faster data transfer because you computer will not need all the memory from your local bus (this connects all the components on the motherboard like the CPU and memory) when you use your peripheral devices. Presently, there is a variety of available bit-numbers of memory buses on the market, ranging from 32 bits, 64 bits, and 94 bits.
Can a solid state drive overheat?
A solid state drive is nearly impossible to overheat unless it is being deliberately or accidentally heated through a source other than the computer itself. The chips and interface themselves produce somewhat less heat than a traditional hard drive and are therefore less likely to interfere with any hardware that !is! sensitive to heat.
This is not known. John von Neumann is commonly credited, but he simply documented an idea that had been discussed for some time by the various designers of ENIAC.
What is the difference between only memory and random access memory?
Memory on a computer is comprised mainly of the hard drive. The hard drive is comprised of several magnetic discs spinning at high speed. The main advantage of hard drives is that the magnetic receptors hold the binary information even when power is cut and the disks stop moving.
Random Access Memory or RAM is made up of millions of transistors built into microchips. A transistor is a minuscule switch that is triggered by electricity. When the power is cut from the transistors, eventually they loose their charge and revert to their default orientation, therefore erasing any data stored within them.
However, RAM is a lot faster and more efficient than data stored in hard drives. So, when the computer first boots up all that time is spent transferring data from the hard discs to the RAM and vice versa when the computer is turning off. that is why it is so important to shut a computer off properly. During a hard shutdown, power is immediately cut from the system. Therefore any data in the RAM will be lost.
If your computer will hold 1GB of memory and it only has 128 MB of memory how much can you add?
In principle, you could 896 MB, however you'll almost certainly have to remove the 128MB memory and replace it (probably with two 512MB). If this is what I think it is, namely a blue and white Apple Power Macintosh G3, the computer had two 64MB DIMMs in it when it shipped. You have three options: Install two 256MB DIMMs (always PC133--the book says PC100, but PC133 is compatible and it's all you can get now anyway) alongside the 64MB DIMMs to have 640MB RAM. Remove one 64MB DIMM and install three 256MB DIMMs for 896MB. Remove both 64MB DIMMs and install four 256MB DIMMs for 1GB.
Is wiretapping or electronic surveillance permitted under the Constitution?
while the constitution does not give the government power to do so, congress passed the patriot act in the 1970's authorizing government agencies to wiretap and use other forms of electronic surveillance to help fulfill the charge of the United States Government to "provide for the common defense" in the preamble to the constitution
What is dell optiplex gx280 max CPU?
doesnt matter because it sucks now
-adrat203, founder of SDA Enterprises and its subsidiary
ROM memory is Non vollatile memory?
Yes. Read Only Memory remains on a chip or a disk. You can not change it. It does not vanish when the computer is turned off. Some programs can access ROM. Sometimes disks crash. You should have backups.
