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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
Name three examples of secondary storage devices?
The most popular secondary storage devices are hard disks, CDs, DVDs, USB Flash drive and floppy disks.
Why would a flash disk generally not be an ideal storage device for storing your movie collection?
It does not have enough storage capacity
A byte is a sequence of 8 bits (enough to represent one alphanumeric character) processed as a single unit of information. A single letter or character would use one byte of memory (8 bits), two characters would use two bytes (16 bits).
Put another way, a bit is either an 'on' or an 'off' which is processed by a computer processor, we represent 'on' as '1' and 'off' as '0'. 8 bits are known as a byte, and it is bytes which are used to pass our information in it's basic form - characters.
An alphanumeric character (e.g. a letter or number such as 'A', 'B' or '7') is stored as 1 byte. For example, to store the letter 'R' uses 1 byte, which is stored by the computer as 8 bits, '01010010'.
A document containing 100 characters would use 100 bytes (800 bits) - assuming the file didn't have any overhead (additional data about the file which forms part of the file). Note, many non-alphanumeric characters such as symbols and foreign language characters use multiple bytes.
A kilobyte (KB) is 1024 bytes, a megabyte (MB) is 1024 kilobytes and so on as these tables demonstrate.
1024 Bytes = 1 Kilobyte, 1024 Kilobytes = 1 Megabyte, 1024 Megabytes = 1 Gigabyte, 1024 Gigabytes = 1 Terabyte, 1024 Terabytes = 1 Petabyte, 1024 Petabytes = 1 Exabyte, 1024 Exabytes = 1 Zettabyte, 1024 Zettabytes = 1 Yottabyte
The yottabyte (derived from the SI prefix yotta-) is a unit of information or computer storage equal to one septillion (one long scale quadrillion or 1024) bytes (one quadrillion gigabytes). The unit symbol for the yottabyte is YB.
As of 2012, no storage system or network has achieved even one thousandth of a yottabyte (a zettabyte) of information. The combined space of all computer hard drives in the world was estimated at approximately 160 exabytes in 2006, and as of 2009, the Internet was estimated to contain close to 500 exabytes.
When used with byte multiples, the SI prefix indicates a power of 1000: 1000000000000000000000000bytes = 10008 or 1024 bytes
The term "yobibyte" (YiB), using a binary prefix, is used for the corresponding power of 1024.
Basic steps used by the processor in instruction processing are?
1.Fetch the most instructions from memory.
2.Read an apparend if required by the instruction.(Apparend is a quantity to be operated as directed by its associated instruction.)
3.Execute the instruction.(Do what the instruction says.)
4.Write the result backe into memory.(If required by instruction.)
Why do animations demand so much storage space and how can you overcome this?
Animations can take up larger amounts of storage space due to the requirement of number of "frames per second" or FPS. For film your are looking at 24 or more frames per second to maintain the illusion of movement, or persistence of vision. Depending on format you could go as high as 60 frames per second. So initially each frame, however large they are is effectively going to be repeated with variations at least 24 times a second. To reduce storage compression such as the MPEG standard can at regular intervals find Key Frames and between each key frame only store the delta, or difference, from the most recent key frame. Depending on scene the compression can be substantial. Along with image compression (per frame, rather then just the delta technique) can drastically reduce the storage requirement. Normally though, the film, animation, scene is first rendered raw, without any compression (hence massive storage) then ran through compression at a later time rather then at run time. This is done to allow fine tuning of the master and have variable options for the output. e.g. The Master File(s) can be compressed in serveral different formats for NTSC, PAL, DVD, Blueray, IMAX, Online, etc. Keeping the Master file uncompressed allows it to be compressed later on for different requirements.
What are the advantages of Holographic data storage over other data storage?
Holographic data storage DVD disks are capable of storing data upto 1 TB which is 1500 times then CD and 200 times Single Side DVD.
there are a lot of different snowflakes and we cant determen how many there are becuz they are like people and there are different people every where and ther are like a thousand but i dont know that i am just 12.
When did they stop use magnetic tape?
The use of magnetic tape for data storage has not completely ceased; however, its prominence has declined significantly since the early 2000s with the rise of digital storage options like SSDs and cloud storage. While it is still used in certain applications, such as archival data storage and backup systems due to its cost-effectiveness and longevity, many industries have shifted to more modern technologies. Consequently, while magnetic tape is still in use, its role has diminished in favor of faster and more efficient storage solutions.
What aftercare is required for disk removal?
the patient is lying flat and face down when he or she awakens. This position must be maintained for several days.Avoid sitting for more than 15-20 minutes.Avoid bending at the waist, twisting, or lifting heavy objects.
