Computer Memory

When the Semiconductor technology not in existence there was a usage of magnetic tapes and magnetic drums which were the Sequential access means If you currently at the position of words which is starts from 'A' so if you need to look up the words started from 'Z' then you've to go through all alphabets means b,c,d........y then you'll get your position at 'Z'. It's similar to Audio or Video cassette.....

But the Ram is Random Access means "The ability of a computer to find and go directly to a particular storage location without having to search sequentially from the beginning location"

The human equivalent of random access would be the ability to find a desired address in an address book without having to proceed sequentially through all the addresses.

Your question is a little vague - However... RAM is faster than say, a hard-disk because RAM is made of silicon chips holding thousands of tiny electronic switches which are quicker to access. On a hard-disk - the information has to be found first by reading a 'reference track' which locates the information on the disk - then a read-head has to physically move to that part of the disk.

Yes it is true that memory caching is a method used to store data or programs in SRAM for quick retrieval. The North Bridge is the faster end of the hub that contains the graphics and memory controller.

A memory cell is an individual part of memory, usually just a single bit. A DRAM "cell" is composed of a transistor and a capacitor, with memory refresh used to keep the charged capacitors charged and the drained ones drained until the values change. A SRAM cell is comprised of a transistor latch gate using 4-6 transistors. SRAM memory takes more power but does not need refreshed.

to find the memory from address lines. you just have to make address liness power of 2, as shown below for 12 address lines 212 bits. 212 = 22 * 210 = 4 Kb
that means we can address 4 Kb from 12 address lines.........

Since most cache memory is located on or near the processor (say, inside a slot device for slot-packaged processors), you'll need a new processor entirely. Some older computers allow you to upgrade a cache chip on the motherboard, so you can refer to the computer documentation to find how to upgrade that chip.

a gigabyte equals 1000 megabytes. so 512000/1000=512 gigabytes.

Currently, the largest named unit of data measurement is the heileybyte which is (give or take) 1211288155777568604160000 bytes. The largest reachable amount of data is the petabyte or 1100585369600 bytes. The current file system, NTFS, can only address hard drives up to 25 petabytes. Here is the list of all the data unit measurements:

bit

byte

kilobyte

megabyte

gigabyte

terabyte

petabyte

exabyte

zettabyte

yottabyte

heileybyte

gogelbyte

As you would expect in such an answer: "It Depends!" On a computer system, if one has one weak area (or a "weak link in the chain") then improving that "weak link" will make a huge difference. For instance, one had a PC with an AMD 5000+ X2 processor with only 512 MB of RAM running windows Vista, then the computer performance would greatly be improved with another 1G or even 512MB of RAM. Most systems which you buy at the store are designed to have balanced "links" in the chains. So overall, memory can improve your speed, but may not necessarily.

Note also that different software demands different resources. Video editing uses a lot of memory, VISTA demands more memory than Windows 98.

Also some video cards rely on system memory rather than its own independent memory. If you are using an Intel GMA950, then it will take advantage of more memory.

If you already have a well balanced system with software that does not harness the memory then adding memory to your system will not help much. If your system is unbalanced in the RAM realm, then memory will make a large difference.

--Best, TOny

For a USB drive (aka Flash Drive), unplug the device.

If you want to be more careful about it, make sure your operating system (or the computer) is not using the device.
The simplest way to ensure this is to shut down the computer.

Another way to do this: wait until the device is not being "read from" or "written to" (close windows that are open that refer to the device) and then try to "eject" the device. Depending on your system, you usually right click (or click-hold) on the icon representing your drive in the task tray. Then you select "unplug" or "eject" and wait until the device disappears from the tray.

Then unplug the device (as above).

Use a rubberized or wooden surface for placing the components on. Never place anything on synthetic materials such as nylon, wool or cotton as it will produce static electricity. Make sure your grounded, do so by touching a metal radiator or metal rod. Products such as anti-static wrist bands can help reduce the risk of damage. Other than that, the risk is very small.

Your good to go!

Data Recovery Service serves as a life-saver key for you to open and retrieve any lost files, inaccessible hard drive or even the ones that have been accidentally deleted. You can surf the net for more choices of data recovery service.

Depending on the specs of the motherboard, a motherboard that supports ECC SDRAM may support a non-ECC SDRAM module. If a motherboard can support both types, you would have the option to enable or disable the ECC feature in BIOS. Other than the fact that an ECC module has an odd number of chips, there is no other physical difference on the module. They are keyed the same.

It depends on the version of Photoshop.

For Photoshop CS4 it's 512MB of RAM (1GB recommended)

Refer to http://www.adobe.com/products/photoshop/photoshop/systemreqs/?promoid=DRHXB

RAM is considered volatile memory because it loses data rapidly and has to be constantly refreshed. It also losses all its data once it loses power.

Refference: Comptia A+ Seventh edition

no it will not even fit into the port as themanufacturer's who designed the new ddr3 ram did not want you to blow it up in a ddr2 motherboard port so they made i so that it would not physically fit, so unfortunately if you want this new faster ram you will have to get a new board and maybe processor.

Most DDR2 800, or better (e.g. DDR2 1066) should work, but to be sure that the RAM is compatible with the the motherboard, you can check the gigabyte webpage and download the PDF of compatible RAM-

http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?ProductID=2314

You would upgrade RAM if you wanted to improve the performance of your computer when it runs desktop applications and web browsers. If your computer is running fine when you are running applications then you do not have to upgrade the RAM that is optional and up to the owner of the computer. Upgrading your RAM could also increase the speed of which a web page loads and pictures load when you are surfing the read, but it will not give you a big increase of speed. Even though RAM will not give you as big of an increase of speed as having a good network connection, using RAM would be a cheaper alternative if you need applications to run better and want a little faster speed when surfing the web.

Yes it can....DDR memory will adjust its speed to the lowest speed of the board or the other memory chip. If the other memory chip is DDR333 the DDR400 will down clock itself to 444 to be compatible. Sometimes you might need to adjust certain settings in the BIOS to accomplish this (timings, latency, etc.).

No.

No, in fact 200 megabytes (MB) is very small. It's about the same size as a regular Xbox 360 arcade model memory unit included with the console. If this is the memory on your computer, then delete unwanted files or your computer may and most likely run very slow and some files may not open.

By a chip's proximity to the CPU.

Mainly, no RAM needs to be refreshed. The more RAM the better and faster. Lower than 800 MB RAM and a computer will be extremely slow and may need a RAM upgrade.