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timofeeve [1]
3 years ago
7

DMA controllers ____.A) do not utilize an additional, special purpose, processorB) are a nonstandard component in PCs of todayC)

can steal memory access cycles from the main CPUD) can access main memory at the same time as the main CPU
Computers and Technology
1 answer:
otez555 [7]3 years ago
8 0

Answer:

D) can access main memory at the same time as the main CPU

Explanation:

DMA is short for Direct Memory Access, these controllers allow the device to transfer data directly to and from the memory modules without interfering with CPU processes. Therefore it can access main memory at the same time as the main CPU. Thus freeing up CPU processing power for other tasks while also retrieving the data necessary.

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Describe the basic features of the relational data model and discuss their importance to the end user and the designer. Describe
Mandarinka [93]

Answer:

The answer to this question can be described as follows:

Explanation:

Relational data model:

The use of data tables to organize sets of entities into relationships requires a relational data model. this model work on the assumption, which is a primary key or code, that is included in each table configuration. The symbol for "relational" data links and information is used by other tables.

Model Design:

This model is used for database management, it consists of structure and language consistency. It is design in 1969.

Importance of data model:  

This provides a common standard for processing the potentially sound data in machines, that was usable on almost any one device.  

Big Data:

It moves to locate new and innovative ways to handle large volumes of authentication tokens and to gather business insights when offering high efficiency and usability at an affordable cost at the same time.

6 0
3 years ago
What option for deploying software to users provides a link to install an application within Control Panel's Programs and Featur
grin007 [14]

Answer:

This question is related to the  following options:

1. Published  - 2. Delegated -  3. Assigned  - 4. Mandated

And the option within Control Panel > Programs and Features > that includes a link to install an application is ; <em>"Published"</em>  thereby the answer would be <em>(</em><em>1.</em><em>)</em>

7 0
3 years ago
What set of code correctly initializes all elements of the array ar to the value 0, given the declaration
Veronika [31]

Answer:

The correct answer is:

C. ndx = 0;

while (ndx < 3) {

ar[ndx] = 0;

ndx++;

}

Explanation:

The declaration given is:

int ar[3];

This means the array consists of three locations and is named as ar.

We know that the indexes are used to address the locations of an array and the index starts from 0 and goes upto to 1 less than the size of the array which means the indexes of array of 3 elements will start from 0 and end at 2.

Now in the given options we are using ndx variable to run the while loop.

So the code to assign zero to all elements of array will be

ndx = 0;

while(ndx<3)

{

ar[ndx] = 0;

ndx++;

}

Hence, the correct answer is:

C. ndx = 0;

while (ndx < 3) {

ar[ndx] = 0;

ndx++;

}

7 0
3 years ago
How do you change the desktop background in the macos mojave operating system?
sleet_krkn [62]

Answer: Click the System Preferences icon on the dock. In the first row, click Desktop & Screen Saver.

Explanation: When it comes to macOS versions, Mojave and High Sierra are very comparable. The two have a lot in common, unlike Mojave and the more recent Catalina.

8 0
1 year ago
What is the correct way to set an unordered list to use squares for its list item symbols?
Sindrei [870]

Answer:To create unordered list in HTML, use the <ul> tag. The unordered list starts with the <ul> tag. The list item starts with the <li> tag and will be marked as disc, square, circle, etc. The default is bullets, which is small black circles.

Explanation:sorry if it’s wrong

5 0
3 years ago
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