1. Distinguish between primary and secondary storage. 2. Identify the important
ID: 3702376 • Letter: 1
Question
1. Distinguish between primary and secondary storage. 2. Identify the important characteristics of secondary storage. 3. Describe hard disk platters, tracks, sectors, cylinders, and head crashes. 4. Compare internal and external hard drives. 5. Compare performance enhancements including disk caching, RAID, file compression, and file decompression. . Defne optical storage including compact dis,digital versatile discs,and Blu-ray discs. 7. Define solid-state storage including solid-state drives, flash memory cards, and USB drives. 8. Define cloud storage and cloud storage services. 9. Describe mass storage, mass storage devices, enterprise storage systems, and storage area networks.Explanation / Answer
Answer1. Difference between Primary storage and secondary storage:
Primary memory is the fundamental memory (Hard circle, RAM) where the working framework dwells.
Secondary memory can be outer gadgets like CD, floppy attractive circles and so on secondary storage can't be straightforwardly gotten to by the CPU and is likewise outside memory storage.
- Primary memory storages are transitory; whereas the secondary storage is perpetual.
- Primary memory is costly and littler, whereas secondary memory is less expensive and bigger
- Primary memory storages are quicker, whereas secondary storages are slower.
- Primary memory storages are associated with data transports to CPU, whereas the secondary storages are the interface through data links to CPU.
Answer2.Secondary storage is a standout amongst the most important resources of the PC. It is storage that is separate from the PC itself, where programming and data can be put away consistently. Secondary storage is fundamental since memory, or primary storage loses its data when a PC is killed though secondary storage does not. Along these lines, it is normally known as non-unpredictable storage. The data on it remains there until the point that it is erased or overwritten by the client.
Answer3. SECTORS: Each track is additionally separated into little units called areas. As the area is the essential unit of data storage on a hard disk. A solitary track normally can have thousands of segments and every part can hold in excess of 512 bytes of data. A couple of extra bytes are required for control structures and mistake location and redress.
Heads
Each hard drive comprises platters and read-compose heads. On the off chance that a drive has four platters, it, for the most part, has eight perused compose heads, one on the best and base of every platter. The head esteem is the quantity of read-compose heads in the drive.
cylinder
Every platter is isolated into tracks. The barrel esteem is the number of tracks on one side of every platter. There are a similar number of chambers on each side of every platter. The division esteem is the number of segments in every chamber (or track), every part comprising of (typically) 512 bytes.
Hard disk with a platter
A hard disk drive platter (or disk) is the roundabout disk on which attractive data is put away in a hard disk drive. The inflexible idea of the platters in a hard drive is the thing that gives them their name (rather than the adaptable materials which are utilized to make floppy disks). Hard drives commonly have a few platters which are mounted on a similar axle. A platter can store data on the two sides, requiring two heads for each platter.
Track – A track is one finished hover of data on one side of a hard drive platter. A track is broken into gatherings of segments
Answer4.Internal Hard Drive vs External Hard Drive
On the off chance that you are wanting to add storage space to your PC, you've most likely settled on the choice to either get an internal hard drive or an external hard drive. The fundamental difference between an internal hard drive and an external hard drive is their motivation. Internal hard drives are intended to be settled on the PC that they will be utilized on. Obviously, you can at present move an internal hard drive starting with one PC then to the next, however, it is additional tedious, and you have to open up the PC. Then again, an external hard drive is made with movability as a main priority. It more often than not interfaces by means of connectors like USB and Firewire, so you can simply connect it to immediately.
Internal and external hard drives are physically the same, aside from that external hard drives accompany a fenced area that secures the genuine drive and gives the fundamental interface to the PC's ports. This minor difference has various noteworthy impacts. To start with, external hard drives have a tendency to be more costly than internal hard drives because of the walled area.
Also, external hard drives are much slower contrasted with internal hard drives. This isn't an issue with the real drive yet with the interface. USB and Firewire are impressively slower than SATA, and the speed of the association is constantly directed by the slowest factor in the chain. A more current interface known as eSATA enables external hard drives to interface at SATA speeds, however, the additional issue of a different power link caused a moderate acknowledgement among makers and shoppers.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.