Hard Disk Drives

Computer data storage, often called storage or memory, refers to computer components, devices, and recording media that retain digital data used for computing for some interval of time. (Source: wikipedia)

virtual memory acts as additional memory to support ur ram when it runs out of the required memory needed by program.

it is taken up from the hard drive u specify and when it is needed it is used. u can also change the size of virtual memory in ur PC, bt most of the time it is automatically done by the os in order to maintain the performance of the machine.

three action ot ensure that a floppy disk is not damge

I'm not sure what you mean by interchangeable, but if you mean can you take one laptop hard drive and put into another the answer would most likely be yes. Assuming they are both based upon the same board communication function. You can't interchange a sata HD with IDE. If they are both Sata or IDE then there is no problem. You can probably tell if they are sata or ide by going into the computers bios. (Settings function before your computer boots.) You can also purchase an adapter that will allow you to hook up your laptop hard drive to your desktop. Hope this helps -Brent

suspension of drivers licence.

Every man has his own little fetish. But the most common way is neck biting, breathing on the neck, crawling your hands around his body and being cheeky and tease him a little. take your time to drag your tongue down his chest, kissing each ab, then slowly breathing on his penis before placing your lips around it.

Some guys have different turn ons.

a read only deice is cd rom

Typically a drive marked as being a 'CD' or a 'CD RW' drive, will not be able to read a DVD. You will need one marked as being at least a 'DVD' drive, which will be able to read DVDs and CDs too.

Disk defragmentation organises the file structure of harddisk by gathering files that are stored in fragments & piecing them together to form a large fragments.

It makes the drive function more quickly & reduce the amount of hops to read single file.

Disk clean up will delete all the junk & temporary files & will increase the speed of ur computer by creating more space

It depends on your motherboard. You'll need to refer to your motherboard specifications to find out how many (and of what type) hard disks you will be able to connect internally.

That depends on chipset. For instance Intel X58 can support up 4 ports natively + 2 for marvell controller. Server motherboards have more SATA ports available. Newer generation motherboards can support 6 and more SATA port natively.

My contacts in the military tell me they always use BCWipe to permanently delete files. Some even say that BCWipe is such a powerful and effective tool to completely wipe data, that they won't allow other staff to keep the software on their computer. For many years, I've relied on BCWipe to be 100% certain that my private data cannot be recovered. And it's actually very simple to install and start using in minutes.

http://www.jetico.com/wiping-bcwipe/

There's simply no better way to permanently delete files.

Left click to select the file, then just press the delete key. It is true that this doesn't remove the file from the hard drive, but it does take down the "fence" that protects it, so it can be overwritten. Make sure you empty the recycle bin afterwards - to do this, right click on the Recycle Bin icon, then select 'Empty Recycle Bin.'

Reformatting or a program like Window Washer, and several free programs similar to it, will make them inaccessible. There are several programs available that will overwrite those files multiple times, to ensure that they are not retrievable. Norton security suite has one, I think. There are others, some free.

Use HDCleaner, it will overwrite n-times any file so it won't be found even using recovery software, I've tried it and it really works, this is the solution for those of us leasing software; this app will erase the blank space in your hard drive, too. Yep, it's free. Good Luck!

There are many freeware software available to permanently delete files from Hard disk. These software follows one of many wiping schemes as explained in http://www.globinch.com and they mentioned SDelete from sysinternals as a free utility. The effectiveness of wiping programs depends on how many times (pass) it is overoverwritten.

Another one is "File Shredder".Advantage is it's right click context menu which makes it very convenient.

http://www.skipser.toolsbysk.com/p/2/p/how-to-securely-delete-files-permanently-from-your-computer.html

Every motherboard includes a battery, as well as several other components. The battery is there because it powers the computer. Most batteries have between 2 and 4 hours of life before they have to be plugged in.

Most still have 1. Some will still have 2, but they are being phased out. I have not yet seen a PATA-less motherboard, but they are definatley on the way, if not already here. That said, 4, 6 and 8 SATA ports are common, and support is good.

If you have legacy devices you need to connect, SATA->PATA devices are made, and fairly cheaply, too.

The default cluster size for a FAT16 partition that is between 1GB and 2GB is 32kb.

The physical size of a hard drive varies by the type of the computer it is placed in. Desktop hard drives are approximately 3.5" wide, and 1" high. Laptop drives are approximately 2.5" wide and 1/3" high. Capacity varies widely. In these modern size formats, you can typically find drives anywhere from 20 GB to 1.5 TB.

storing programs
There are many types of hards. Internal and external are main two types.

It is known as overwriting, in which a program is used to write zeroes and ones on the hard-drive. Several passes may be made to ensure the original data has been completely overwritten. Simply formatting a hard-drive is no good, as the data is still on the hard-drive, only the links to the data is removed, and the data can be recovered.

An external disk drive has a number of uses. Often it is used simply to back up data stored on an internal disk drive. They are used to store and move data between locations easily for example taking one to work with files from home.

Open Disk Utility in the Utilities folder within the Applications folder. Select the external disc in the left hand pane and the formatting options on the right. If the external drive is only for use with the Mac select the default Mac OS Extended (Journaled) format.

It's taken me just about forever, but I've finally found some way to answer the simple question "How much platinum is in these hard drive platters showing up on Ebay for salvage?" "The Chemistry of Computing" over at extremetech.com (article2/0,2845,1946290,00.asp) has all the facts: surface layer of Co-Cr-Pt alloy is 40-50% platinum, and the layer is ~30 nm thick. I don't have a hard drive platter in front of me, so let's just forget about the hole in the middle for a moment, so one platter from a 3.5" disk is 3.14*(3.5/2)^2=10.4 sq inches or 67.2 cm^2 ... times the 30 nm thickness (3x10^-6 cm) is 2.0x10-4 cm^3, times the (optimistic) 50% Pd, times the density of Pt (21.45 g/cm^3) and I estimate one platter has at most 2.2 mg Pt. As of 08/29/2008, the platinum spot price was 1470.00 USD per troy ounce, or more usefully, 4.73 cents per miligram. So, congratulations, you've just spent an hour of time and three cents of chemicals (just a guess, probably high) to reclaim 10 cents of platinum, probably still contaminated with cobalt and chromium depending on your recovery method. I hope you bought a whole bunch of platters cheap and rode a bike to pick them up because I doubt you'll be paying for gas let alone the shipping with the platinum. Or hope those early hard drives used a much thicker layer....

Until they are written over. If you delete 5 files, for example, they will stay on your computer until the space that the files added to your drive is taken up again. Then the files will be permanently gone.

Yes, you can remove a hard drive from an older computer, place it in a new computer, and format it. Simply formatting it will leave it with no operating system, and thus useless in the Windows 98 computer. Installing Windows 98 to the drive from in your new computer may be difficult if your computer exceeds 512 MB of RAM, or if you use a SATA CD/DVD drive. Installing Windows XP to the drive might not work when placed back into the older computer if it doesn't meet XP's system requirements.

External hard drives can use data from an internal hard drive as often as you'd like. To do this, you must have backup software installed on each drive that will allow you to back up the drive when necessary, even if you are not in front of your computer.