Data Storage Devices

Data storage devices are any piece of computer hardware used to record some sort of information. Questions about storage devices and the media on which they record information belong here.

4,211 Questions
India
Data Storage Devices

How functioning the reliance data card?

Reliance has data card of two types. One is CDMA 1x and the other is Netconnect+. CDMA 1x gives speeds till 144 kbps while Netconnect+ has speeds till 3.1 MBPS and hence is faster than the other one.

Reliance is in about 500 towns, which is higher than any other operator, though Tata Photon has also launched it's data card services, Reliance has so far held on to the number 1 status.

http://www.rcom.co.in/Rcom/personal/internet/wireless_internet.html go here for more details

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Software and Applications (non-game)
Computer Terminology
Data Storage Devices

What do you mean by ROM from computer storage devices?

ROM stands for "read-only memory".

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Data Storage Devices
Hard Disk Drives
Floppy Disk Drives

Are floppy disks still being made?

Yes they are.

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Data Storage Devices

How many files can you store on a data storage device?

Files can have an infinite variety of sizes. It is impossible to answer "How many movies can fit on a 40 GB hard drive" or "How many MP3 files can fit on 1 GB Flash drive." Varying lengths, compression formats, and quality settings will affect the overall size of each file.

To calculate the number for a given device, you can divide the total available space by average size of the files to be stored.

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Floppy Disk Drives
Data Storage Devices
Hard Disk Drives

What is a displaced disk?

A blisterlike bulging or protrusion of the contents of the disk out through the fibers that normally hold them in place

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Data Storage Devices
Hard Disk Drives
Floppy Disk Drives

What is low-level formatting?

Low-level formatting is the process of outlining the positions of the tracks and sectors on the hard disk, and writing the control structures that define where the tracks and sectors are. This is often called a "true" formatting operation, because it really creates the physical format that defines where the data is stored on the disk. The first time that a low-level format ("LLF") is performed on a hard disk, the disk's platters start out empty. That's the last time the platters will be empty for the life of the drive. If an LLF is done on a disk with data on it already, the data is permanently erased (save heroic data recovery measures which are sometimes possible).

If you've explored other areas of this material describing hard disks, you have learned that modern hard disks are much more precisely designed and built, and much more complicated than older disks. Older disks had the same number of sectors per track, and did not use dedicated controllers. It was necessary for the external controller to do the low-level format, and quite easy to describe the geometry of the drive to the controller so it could do the LLF. Newer disks use many complex internal structures, including zoned bit recording to put more sectors on the outer tracks than the inner ones, and embedded servo data to control the head actuator. They also transparently map out bad sectors. Due to this complexity, all modern hard disks are low-level formatted at the factory for the life of the drive. There's no way for the PC to do an LLF on a modern IDE/ATA or SCSI hard disk, and there's no reason to try to do so.

Older drives needed to be re-low-level-formatted occasionally because of the thermal expansion problems associated with using stepper motor actuators. Over time, the tracks on the platters would move relative to where the heads expected them to be, and errors would result. These could be corrected by doing a low-level format, rewriting the tracks in the new positions that the stepper motor moved the heads to. This is totally unnecessary with modern voice-coil-actuated hard disks.

More input from FAQ Farmers:

  • The only time you could low level format a new voice coil hard drive if it you would have bad sector that are not being taken care by the hard disk logic. Most of the time you will have a utility to do this task that comes from the manufacturer of the drive and it will not work with any other brand. Maxtor and late quantum has a utility called Max blast plus and power max and others. They are used to diagnostic but also to fix at the low level.
  • Those utilities can many times restore an unstable drive by reformatting at the low level and blocking out bad sector. Of course if the RLL (magnetic data) is low because the read write hardware is defective it will do no good. If the surface was damaged it could give the drive a new life.
  • There is also an application called Spinrite (by Steve Gibson) It's not a low level format in itself but it reads and rewrites the data (at the low level) while analyzing the disk. Spinrite is over 17 years old and has been updated to the new technology ever since version 1 (current version is 6). I's a very respected software by all the hard disk service technician around the world. Steeve Gibson is one (if not the best) of the best hard disk low level white hat hacker in the world.
  • No software of any sort can truly low-level format today's modern drives. The ability to low-level format hard drives was lost back in the early 1990's when disc surfaces began incorporating factory written "embedded servo data". If you have a very old drive that can truly be low-level reformatted, SpinRite v5.0 will do that for you ( But this is only possible on very old non-servo based MFM and RLL drives with capacities up to a few hundred megabytes. You can still read and write from that "so called" low level but not in the same way it was original;y possible then with old drives.
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Technology
Data Storage Devices

What are the disadvantages of anonymity?

Its able to glich and move out of control.
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Technology
USB Flash Drives
Data Storage Devices

Can you make the storage capacity of a usb bigger?

yes delete everything on your usb first

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Computer Hardware
Data Storage Devices
CD and DVD Drives
Sony Playstation 2

How do you fix a combo DVD CD-RW drive run on Windows XP which at first sporadically failed to read discs but could be solved by reboot but eventually completely fails to read any disc?

There are many things that could cause this, but I would first try this. Since it does read at first, but then doesn't respond after some time it may be a software problem. Find out the exact model of your Drive and Manufacturer. You can usually find the model on a sticker on the back, top, or bottom of the drive. Go to their website and see if you can download new Firmware for the drive. Many times the Firmware will correct problems that exists due to driver conflicts and/or Motherboard/OS compatibility. There will be instructions on how to do this on the manufacturers website. Try this first and if it doesnt work, it may be a bad drive.

the DVD CD-rw will not read DVD CD but will read CD

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Google
Data Storage Devices

How much storage does Google have?

By the end of 2010, Google will have around 18,000 servers and more then 5 Peta Bytes of storage.

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Computer Hardware
Data Storage Devices
Hard Disk Drives
Floppy Disk Drives

How are data files saved on floppy disks?

Put a floppy disk in the drive. With Windows, go to file save as, then go to the drop down box. At the top of that box, go the 3 1/2 floppy and save it.

it is done by a reading light that passes over dints in the disk which is allocated inside the platic cover which forms the binery cod 1 and 0 forming data blocks form the code, e.g

110110010111011101101

thanks boris

The answer above is refering in principle to how CD's work - NOT floppies. Floppy disks store binary data as a series of magnetic dots on the surface of the disk and are written to / read from by a voice coil (electro-magnet).

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Data Storage Devices
Hard Disk Drives
Floppy Disk Drives

Can files saved onto floppy disk only be accessed by other users without the disk?

Short answer to this. No, the data can't magically jump from one computer to another (providing the computer's aren't networked. If they were however, it would be unlikely the files would be stored on floppy)

short answer: no, not normally. long answer: maybe. if the file has a backup copy written on the harddrive somewhere, and someone knows where to look, then, yes.

take the screws off and throw a bucket of water on top of it and then get a blow dryer and dry i did that and now iam in hospitel and pepol are feeding me ice cream and chocolate EVERY MINIT!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The files cannot be accessed unless they are stored somewhere else on the system or they are in temporary files. in short; no.

NO.

In fact, your question has a false answer. Files saved onto a floppy disk cannot be accessed from the disk unless the user uses the disk in the computer. The only way to access the same files without a disk is to have a backup on another disk, hard drive, or other medium.

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Computer Viruses
Data Storage Devices

How can you detect the virus on a optical disk?

Well to tell yhu the truff yhu cant the only way yhu can protect a virus is by gettin a virus protection when yhu but the computer othervise yhu cant

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Computers
Computer Hardware
Data Storage Devices
Hard Disk Drives

What are the different drives in a computer and their functions?

CdRom - To read cd's CDR - To read and write CD's DVDrom - to read dvd's DVDR - To read and write dvd's Zip- Used like a floppy, but will store 100 Mb of storage Floppy - stores 1.44 Mb of data Hard Drive- where everything is saved There are tons more types of drives.. do a search on google for it

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Data Storage Devices

Can you hook up an external hard drive to a DVD recorder?

Yes, but it's done more manually

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Computer Terminology
Computer Memory
Data Storage Devices

How many gigabytes are in a terabyte?

By definition, there are 1000 gigabytes (GB) in 1 terabyte (TB). The prefix giga- means billion, 109, and tera- means trillion, 1012.

There is another similar unit called the terabinary byte, or tebibyte. RAM sizes are based on powers of 2, due to binary addressing, so when RAM is big enough to measure in the tebibytes, it will be equal to 1024 gibibytes.

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Computers
Computer Hardware
Data Storage Devices

Why storage is both input device and output device?

As it has the capability of reading and writing data.

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Bankruptcy Law
Data Storage Devices
CD and DVD Drives
Copyright Law

Is there any software you can use to copyright DVDs or CDs that you burn in order to prevent people from copying them?

yes

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Software and Applications (non-game)
Data Storage Devices
Hard Disk Drives
Floppy Disk Drives

How can you erase data from a jaz disk?

It depends on how badly you want the data erased and whether or not you want to reuse the disk.

Your Operating System has a command that will "delete" files, but they will still exist on the disk in a recoverable form. The command might be "rm" or "del", depending on what OS you are using.

You can also use "secure delete" utilities like BestCrypt's bcwipe or eraser, which will overrite the data many times. Search the internet for "Gutman" and "secure delete" for more products.

If you REALLY want the data GONE, a blowtorch is very reliable. So is a hammer. Especially if you dispose of the resulting pieces in different dumpsters.

Good luck.

158159160
Data Storage Devices

Is pen drive magnetic media or optical media?

Neither - they are a Solid State Drive (SSD). They use silicon chips to store the data - in general similar to RAM except they are Nonvolatile - they retain data without any power applied whereas RAM is Volatile and losses all it's data when power is removed.

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Magnetism
Data Storage Devices
Floppy Disk Drives

Magnets destroy floppy disks what else destroys it?

Floppy disks are made of materials that degrade with time. Material degradation include cracks and chemical changes such as oxidation.

Physical force will break a floppy disk.

Heat will melt the disk or hasten oxidation of the material.

Spilling something on a disk creates a coating that can alter the physical movement of the disk.

Other chemicals can react with the material of the disk and change its physical or chemical characteristics.

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Data Storage Devices
The Difference Between

What is the difference between storage or stowage?

The two words are often interchangeable. A key difference is in their nautical context.

On a ship or other moving vehicle, storage would be where cargo is kept. Stowage is any holder made for specific contents, usually fasten-able so that nothing shifts during transit.

For example, I store groceries in the trunk of my car. The spare tire is stowed underneath, securely bolted.

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Data Storage Devices
Hard Disk Drives
Floppy Disk Drives

How is a bit stored in an optical disk?

As data in binary format of 0 & 1 on hard drive sectors.

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Data Storage Devices
Hard Disk Drives
Floppy Disk Drives

What is the difference between portable and non portable storage devices?

well...the answer lies in whether or not they are convenient to move from point a to point b. Literally speaking, ALL storage devices are portable. From a practical point of view, however, it is portable if it is easy to disconnect/reconnect and it is non-portable if it requires turning screws.

127128129
Computer Terminology
Data Storage Devices
Hard Disk Drives
Sony Playstation 3

What is a hard drive?

Hardrive

A hard drive is non-volitile memory for a computer meaning when the power is removed the memory is still there. It is called a hard drive because the substrate for the memory is a number of rigid aluminum discs as opposed to the old floppy drives which had a flexible substrate.

A rigid magnetic disk fixed permanently within a drive unit and used for storing computer data.


Most hard drive manufacturers advertise their hard drives in even looking numbers, but in truth the actual hard drive capacity is a bit lower than the advertised amount. Generally it goes in an exponential fashion, for example, if you bought a 250GB hard drive, it might actually have a total of 215GB, whereas if you bought an advertised 1TB drive, it may actually have a total of 770GB.

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