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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.
1,624 Questions
What is the difference between primary storage device and secondary storage device?
- Primary Storage
- Two classifications of primary storage with which you should become familiar are read-only memory (ROM) and random-access memory (RAM).
- READ-ONLY MEMORY (ROM).-In computers, it is useful to have instructions that are used often, permanently stored inside the computer. ROM enables us to do this without loosing the programs and data when the computer is powered down. Only the computer manufacturer can provide these programs in ROM; once done, you cannot change it. Consequently, you cannot put any of your own data or programs in ROM. Many complex functions, such as translators for high-level languages, and operating systems are placed in ROM memory.
- Since these instructions are hardwired, they can be performed quickly and accurately. Another advantage of ROM is that your imaging facility can order programs tailored for its specific needs and have them installed permanently in ROM. Such programs are called microprograms or firmware.
- RANDOM-ACCESS MEMORY (RAM).-RAM is another type of memory found inside computers. It may be compared to a chalkboard on which you can scribble down notes, read them, and erase them when finished. In the computer, RAM is the working memory. Data can be read (retrieved) or written (stored) in RAM by providing the computer with an address location where the data is stored or where you want it to be stored. When the data is no longer requited, you may simply write over it. Thus you can use the storage location again for something else.
- Secondary Storage
- Secondary storage, or auxiliary storage, is memory external to the main body of the computer (CPU) where programs and data can be stored for future use. When the computer is ready to use these programs, the data is read into primary storage. Secondary storage media extends the storage capabilities of the computer system. Secondary storage is required for two reasons. First, the working memory of the CPU is limited in size and cannot always hold the amount of data required. Second, data and programs in secondary programs do not disappear when the power is turned off. Secondary storage is nonvolatile memory. This information is lost only when you erase it. Magnetic disks are the most common type of secondary storage. They may be either floppy disks or hard disks (hard drives).
- PERIPHERAL DEVICES
- Peripheral devices include all the input and output devices used with a computer system. When these devices are under control of the CPU, they are said to be on line. When they perform their function independently, not under direct control of the CPU, they are said to be off line. The following peripheral devices are used commonly for input and output. Those that perform only input are marked (I), those that perform only output are marked (O), and those that perform both input and output are marked (I/O).
- Optical Character Reader (I)
- An optical character reader reads printed data (characters) and translates it to machine code. Keyboard (I) The keyboard is used by a computer operator to communicate with a computer system.
There is no such thing as 14-bit byte addressable memory. There IS, however, 16-bit byte addressable memory, which I hope is what you meant. In that case, you simply divide 16 by 4 to get 16/4 = 4 nibbles.
If you did in fact mean 14-bit address, then it would be 14/4 = 3.5 nibbles
Where is the your storage on inside secretbuilders?
When you decorate your soon to be beautifull home you click on the PLACE button to see what you have to improve you home.
Also to put away your furniture you need to press the AWAY button.
Hope you enjoy making you home the best.
How the working of floppy disk drive differ from hard disk drive?
The head(s) in floppy drives make physical contact with the floppy disk surface, while the heads in hard disk drives fly over the hard disk surface on a cushion of air created by the platter rotation speed. All other features of the devices are similar.
An access time is the time interval between the issuing of a request to send data from or write data to a storage device and the completion of this action.
Yes, you can... http://www.cdrecyclingcenter.com/
http://www.greendisk.com/
This one lets you help dogs... http://www.discsfordogs.org/howitworks.html This one is my fav. though, just put your zip (USA) and it will tell you were to drop them off... http://earth911.org/
For more information... Google "recycle DVD's"
Does DNA store its information more efficiently or less efficiently than a computer?
The data storage density is much higher in DNA than in any electronic or magnetic memory available on computers today.
For example every human cell contains 6,469.66 million basepairs (1.617415 GB) in the DNA inside its nucleus. This is similar to one RAM module on a modern computer.
Remove the write protection or use another disk?
There are several possibilities:
- Check if there is a physical write protect switch on the side of the flash drive. If there is set it to the opposite position it is in now.
- Your operating system may be set to prevent writing to USB drives. Google how to change this setting for the appropriate operating system.
- Your flash drive needs a low level format. Check with your manufacturer's web site for details.
- Your drive is toast and should be replaced.
Why is the CD-audio sampling rate 44.1kHz not 40.0 kHz?
This site explains it: http://www.cs.columbia.edu/~hgs/audio/44.1.html
What does the disk optimization process do?
Ø Disk optimization process collects file fragments and puts them back together. Whenever the files are changed and saved for frequent times, they become fragmented and the volume is filled with different parts of a single file stored in different locations on a volume, here the optimization process collects all those fragmented files into a single one sunil khadka aicl college
What is the nutrient type that does not have a specialized storage form?
the nutrient type that does not have a specialized storage form
I'm waiting for my answer
Where on the PC is ssd located?
Unless you bought your PC or built it with a ssd, there will be none...an SDD(Solid Slate Drive) is a high performance/speed HDD(Harddrive). Often very expensive.
It is a medium sized memory module used in a newer model desktop PC.
DDR is the Double Data Rate technology that is far faster than the standard SDRAM modules.
What are the types of storage devices that are read by lasers?
CD (Compact Disks)
DVD (Digital Versatile Disks)
Blu-Ray
optical disk
Without seeing the machine in person, its impossible for me to tell, but if its only doing this when you play DVDs or CDs then its probably the DVD drive that's making the noise.
Optical drives spin at very high speeds when theyre reading & writing, if the disk or the moving parts of the drive are out of balance, it can make the drive vibrate & it can be quite noisy.
Note that it is not uncommon for cheaper media (like stuff you find in the $5 bin at walmart) to do this, but if all discs are doing this, youll need to replace your DVD drive.
If that's the case, contact apple & see if theyre willing to do a warranty replacement, the worst they can do is say no.
