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Aneli [31]
2 years ago
7

(ATRCKALLB) __________is an input device that contains a movable ball on the top.​

Computers and Technology
1 answer:
nikitadnepr [17]2 years ago
3 0

Answer:

trackball

Explanation:

A trackball can be seen on a mouse.

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How does polymorphism enable you to program "in the general" rather than "in the specific"? Discuss the key advantages of progra
barxatty [35]

Answer:

Explanation:

When programming in an OOP language classes are created to represent real-life objects, people, places etc. from the real world. Programming in the general allows you to cut down your code and making it more efficient by applying the same necessary functions to all of the objects that classify under the same category. For example by programming "in the general" and creating an Animal class you can create all of the functions/behaviors that animals tend to have. Then you can apply these functions/behaviors to various animals such as a Cat, Dog, Horse, etc. But if you program in the specific you cannot apply a Cat class to a Dog since they are not the same thing.

4 0
3 years ago
A(n) ________ collects data from various key business processes and stores the data in a single comprehensive data repository, u
xxTIMURxx [149]

Answer:

An Enterprise System

Explanation:

An enterprise system also refered to as an enterprise software is a computer software application used to handle the needs of a business or an enterprise examples are schools, production companies, government ministries and departments, charities etc.

The software provides all the business oriented services for the enterprise, services such as payment processing, students' information management, automated billing and payments etc.

Because enterprises will typically have different departments, the software is able to collect data from all the key business processes across all the departments into a single database which is useable according to different access privilages by all other parts of the enterprise.

3 0
3 years ago
Which of the following statements is false? Question 4 options: By convention class names begin with an uppercase letter, and me
amm1812

Answer:

Instance variables can be declared anywhere inside a class.

Although there isn't any rule to declare instance variables before methods, and they can be declared anywhere in the class, they cannot be declared inside method definitions of class.

///////////////////////////////////////////////////////////////////////////////////////////////////////////

<em>By convention class names begin with an uppercase letter, and method and variable names begin with a lowercase letter.</em> - True.

<em>Instance variables exist before methods are called on an object, while the methods are executing and after the methods complete execution.</em> - True.

<em>A class normally contains one or more methods that manipulate the instance variables that belong to particular objects of the class.</em> - True

8 0
3 years ago
Read 2 more answers
You also learn in class that one kilobyte of computer memory will hold about 2/3 of a page of typical text (without formatting).
Travka [436]

Answer:

The flashdrive can hold 35389 400-pages-books

Explanation:

If \frac{2}{3} of a page occupies 1 kB of memory, we can calculate how much memory a book will take

2/3kB=1 page\\ x kB=400 pages\\266.67 kB=400 pages

Now that we know that a book average file size is about 266,67 kB, we calculate how many of them can a 9 GB flash drive hold.

To do the calculation, we have to know how many kilobytes are in 9 gigabytes.

There is 1024 kilobytes in a megabyte, and 1024 megabytes in a gigabyte, so:

Memory_{in _kilobytes}^{} =1024\frac{kilobytes}{megabytes} *1024\frac{megabytes}{gigabytes}*9=9437184 kilobytes

Finally, knowing the average file size of a book and how much memory in kilobytes the 9 GB flash drive holds, we calculate how many books can it hold.

Books=\frac{Flash drive memory}{Filesize of a book} =\frac{9437184kilobytes}{266.67\frac{kilobytes}{book} } =35389,4 books

The flashdrive can hold 35389 400-pages-books, or 14155776 pages of typical text.

8 0
3 years ago
Alexandria works for a non-for-profit company that asks for donations to help the homeless people in her community. Recently the
irakobra [83]

Answer:

Option A.

Explanation:

7 0
3 years ago
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