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Svet_ta [14]
3 years ago
11

Why would "ExpirationDate” be a poor choice as a primary key?

Computers and Technology
1 answer:
denis23 [38]3 years ago
4 0
<span>There could be more than one item with the same expiration date, and primary keys must be unique.</span>
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What is the main function of an operating system​
alina1380 [7]

Here are the main functions of an operating system:

1) Manage the resources of the device

The operating system controls how much of each resource is distributed, and it controls things like the processing unit and memory.

2) Establish a interface for the user of the device

The operating system must classify what the classes of the script/code have to do and what they implement.

3) Service application software

The operating system must service each application that is downloaded onto the device. It must balance it's use of storage between apps.

4 0
3 years ago
What is Digital Access, and why is it important for YOUR generation?
Harman [31]

“Our students were born with a mouse in their hands. The pervasive nature of digital culture has altered the way they think, and the way they learn. Education today is completely out of sync with this new reality.” an excerpt from Understanding the Digital Generation. The New ConnectionsThis eye-opening presentation provides a comprehensive look at how the pervasive nature of digital culture has and continues to change the brains of our students. As a result of these changes, they have developed learning styles and preferences which are in contrast to the traditional pedagogical approach. The New Connections provides a clear description of 10 core learning attributes of digital learners, and a pragmatic look at how we can teach effectively in an age when new technologies cascade onto the new digital landscape at an astonishing rate. Because of digital bombardment and the emergence of the new digital landscape, today’s youth process information, interact and communicate in fundamentally different ways than any previous generation before them. Meanwhile, many of us, having grown up in a relatively low-tech, stable, and predictable world, are constantly struggling with the speed of change, technological innovation, and the freedom to access the overwhelming sea of information online—all defining characteristics of the digital world of both today, and the swiftly-approaching future. Strategies That Work provides a comprehensive profile of several core learning attributes of digital learners, and the core teaching, learning, and assessment strategies that can be used to appeal to their digital lifestyle and learning preferences. You’ll gain a clear understanding of various research-based strategies to optimize learning for the digital generation in the new digital landscape.

7 0
2 years ago
What is a problem? Give an example of abusiness problem and discuss how acomputer-based information system couldsolve it.
Naily [24]

Answer:

A problem is a challenging task or process that needs resources not available to the individual or group responsible for the task.

An example of a business problem is data analysis.

Explanation:

A business enterprise is driven by profit making. Investing in a business opportunity requires or demands for feasibility study. Without the right computer skills, a company dives into various physical forms of survey like giving questionnaires to potential clients.

This form of survey requires a lot of time and money that should be invested in other assets in the company and the data acquired, sometimes  is not enough to make long term business decisions.

On the other hand, when a spreed sheet application is used (like microsoft excel) by a business data analyst with big data and data visualization skills, large data could be accessed online and analysed of a fast and efficient descriptive and predictive analysis for long term business decisions.

7 0
3 years ago
PI
siniylev [52]

Explanation:

As the qn was copy pasted from another document...the qn seems incorrect... and incomplete..

pls see to it and attach the correct qn...

sorry

4 0
2 years ago
allan is writing a book about rain forests of south america. he plans to spend a few months there and requires an internet conne
madam [21]

Answer:

Satelite

Explanation:

But which is best, satellite, ISDN, fixed wire(Cable), or mobile wireless? The answer depends on what you’re looking for in terms of price and speed—and where you live.

Satellite internet is a great option for rural-area residents (Remote) because it’s available virtually anywhere. Internet speeds can range from 12 to 100 Mbps.

8 0
3 years ago
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