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3 years ago

A database is used instead of a spreadsheet when ________.

Computers and Technology

1 answer:

Ierofanga [76]3 years ago

5 0

Answer:

C. Lists involve data with multiple themes

Explanation:

<em>First of all, it will be beneficial to explain all the concepts involved.</em>

<em />

A spreadsheet is an electronic ledger in which data is arranged in rows and columns of a grid and can be manipulated and used in calculations.

A database can be defined as a structured set of data held in a computer, especially one that is accessible in various ways.

A theme in data storage refers to the subject matter or topic that categorizes various data sets.

A spreadsheet can be used to store and analyse simple data sets as shown in the options A, B and D. However for option C, a database must be used if it needs to be done accurately.

A data base is more robust than a spreadsheet and can accommodate a lot more diversities in the data sets.

Spreadsheets are built to simplify data analysis, and have their candid limitations - they cannot assure data integrity or consistency when dealing with data of various subject matters.

Lists that involve data with multiple themes can be easily handled with data bases, because data bases specialize in collecting raw data in a tabular form which cannot be formatted. This helps sort out the data into their various themes.

The tables on a database can be programmed to accept a particular theme of data, and nothing else. however, this cannot be done with spreadsheets, as the cells accept the data first before it is formatted to the data type it is. Thus databases help ensure consistency and integrity of the data when dealing with data of multiple themes

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Ashley Baker has been the webmaster for Berryhill Finance only ten days when she received an e-mail that threatened to shut down

Natasha_Volkova [10]

Answer:

cyber-extortion

Explanation:

Ashley Baker has been the webmaster for Berryhill Finance only ten days when she received an e-mail that threatened to shut down Berryhill's website unless Ashley wired payment to an overseas account. Ashley was concerned that Berryhill Finance would suffer huge losses if its website went down, so she wired money to the appropriate account. The author of the e-mail successfully committed cyber-extortion.

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3 years ago

2. Consider a 2 GHz processor where two important programs, A and B, take one second each to execute. Each program has a CPI of

allsm [11]

Answer:

program A runs in 1 sec in the original processor and 0.88 sec in the new processor.

So, the new processor out-perform the original processor on program A.

Program B runs in 1 sec in the original processor and 1.12 sec in the new processor.

So, the original processor is better then the new processor for program B.

Explanation:

Finding number of instructions in A and B using time taken by the original processor :

The clock speed of the original processor is 2 GHz.

which means each clock takes, 1/clockspeed

= 1 / 2GH = 0.5ns

Now, the CPI for this processor is 1.5 for both programs A and B. therefore each instruction takes 1.5 clock cycles.

Let's say there are n instructions in each program.

therefore time taken to execute n instructions

= n * CPI * cycletime = n * 1.5 * 0.5ns

from the question, each program takes 1 sec to execute in the original processor.

therefore

n * 1.5 * 0.5ns = 1sec

n = 1.3333 * 10^9

So, number of instructions in each program is 1.3333 * 10^9

the new processor :

The cycle time for the new processor is 0.6 ns.

Time taken by program A = time taken to execute n instructions

= n * CPI * cycletime

= 1.3333 * 10^9 * 1.1 * 0.6ns

= 0.88 sec

Time taken by program B = time taken to execute n instructions

= n * CPI * cycletime

= 1.3333 * 10^9 * 1.4 * 0.6

= 1.12 sec

Now, program A runs in 1 sec in the original processor and 0.88 sec in the new processor.

So, the new processor out-perform the original processor on program A.

Program B runs in 1 sec in the original processor and 1.12 sec in the new processor.

So, the original processor is better then the new processor for program B.

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3 years ago

How is photography like jazz music?

Wewaii [24]

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3 years ago

Low-level programming languages are considered closer to human languages, making them easier for programmers to learn and use.

zubka84 [21]

I think the answer is True I hope it helps

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3 years ago

When preparing the heading for an MLA Format Academic Report, which of the following shows the proper order of the for lines of

Sloan [31]

Answer:

A. Student Name, Instructor, Course, Date

Explanation:

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3 years ago