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juin [17]
3 years ago
11

Lux Ladies, Inc., is a company that specializes in expensive and unusual gifts for all occasions. It keeps a large file of infor

mation on all of its regular customers, including names, addresses, and type of gifts they have ordered in the past, and the size and frequency of their orders. The electronic file which stores this information is a(n) _____.
Computers and Technology
1 answer:
makkiz [27]3 years ago
5 0

Answer:

Database.

Explanation:

A database is a structured collection and gathering of data, usually stored and later used electronically from a computer system. Whenever there’s a complexity in databases then there are mostly developed using formal design and some advanced modeling techniques.

It is a system built for storing and managing data (every kind of information). A database machine is capable of sorting, changing or serving the information on the database. The information itself can be kept in many diverse ways - prior to digital computers, printed books, card files, and other methods were used.

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Answer:

Its like an emotionless crying face, mainly used for humor

Explanation:

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3 years ago
Consider a single-platter disk with the following parameters: rotation speed: 7200 rpm; number of tracks on one side ofplatter:
horsena [70]

Answer:

Given Data:

Rotation Speed = 7200 rpm

No. of tracks on one side of platter = 30000

No. of sectors per track = 600

Seek time for every 100 track traversed = 1 ms

To find:

Average Seek Time.

Average Rotational Latency.

Transfer time for a sector.

Total Average time to satisfy a request.

Explanation:

a) As given, the disk head starts at track 0. At this point the seek time is 0.

Seek time is time to traverse from 0 to 29999 tracks (it makes 30000)

Average Seek Time is the time taken by the head to move from one track to another/2

29999 / 2 = 14999.5 ms

As the seek time is one ms for every hundred tracks traversed.  So the seek time for 29,999 tracks traversed is

14999.5 / 100 = 149.995 ms

b) The rotations per minute are 7200

1 min = 60 sec

7200 / 60 = 120 rotations / sec

Rotational delay is the inverses of this. So

1 / 120 = 0.00833 sec

          = 0.00833 * 100

          = 0.833 ms

So there is  1 rotation is at every 0.833 ms

Average Rotational latency is one half the amount of time taken by disk to make one revolution or complete 1 rotation.

So average rotational latency is: 1 / 2r

8.333 / 2 = 4.165 ms

c) No. of sectors per track = 600

Time for one disk rotation = 0.833 ms

So transfer time for a sector is: one disk revolution time / number of sectors

8.333 / 600 = 0.01388 ms = 13.88 μs

d)  Total average time to satisfy a request is calculated as :

Average seek time + Average rotational latency + Transfer time for a sector

= 149.99 ms + 4.165 ms + 0.01388 ms

= 154.168 ms

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3 years ago
Which of the following options would enable you to block inheritance for a folder, retain all of the same permissions as the par
AfilCa [17]

Answer:

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