COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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logical records
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virtual records
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physical records
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memory records
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Detailed explanation-1: -Hard disks are flat circular plates made of aluminum or glass and coated with a magnetic material. Hard disks for personal computers can store terabytes (trillions of bytes) of information. Data are stored on their surfaces in concentric tracks.
Detailed explanation-2: -Modern hard drives have two sector sizes, the physical sector size and the logical one. The physical sector size is what the hard drive actually reads and writes in; the logical sector size is what you can ask it to read or write (and I believe what logical block addresses are in).
Detailed explanation-3: -Developers favor block storage for computing situations where they require fast, efficient, and reliable data transportation. Block storage breaks up data into blocks and then stores those blocks as separate pieces, each with a unique identifier. The SAN places those blocks of data wherever it is most efficient.
Detailed explanation-4: -While sector specifically means the physical disk area, the term block has been used loosely to refer to a small chunk of data.