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3 years ago

Uses of keyboard as a input device

Computers and Technology

2 answers:

mixas84 [53]3 years ago

8 0

The following are the uses of the keyboard as an input device.

<u>Explanation</u>:

Keyboard has many uses. It is used on the computer, laptops, and mobile, etc. Without a keyboard, we cannot print anything on the screen.
The computer keyboard helps us to input characters on the screen. It helps us to type alphabets, numbers and special characters on the screen. With the help of keys, we can do net surfing and we can type letters and can play games.
In mobile, we can see the attached keyboard. We are typing letters and doing calls with the help of a keyboard only. So without a keyboard, we can't type letters and we can't operate the system and mobile phones.

KATRIN_1 [288]3 years ago

3 0

helps us for typing letters, numbers and symbols etc.

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The while loop is also known as what kind of a loop? entry-control loop operational loop infinite loop user-control loop

Alexxx [7]

Entry control loop. Because a while loop can be infinite or not based on whether Boolean given is T or F. So we need to know the preexisting condition before we can solve it.

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2 years ago

व्याख्या c) Differentiate between Raster Image and Vector Image.

crimeas [40]

Vector images are described by lines, shapes, and other graphic image components stored in a format that incorporates geometric formulas for rendering the image elements

These are the types of images that are produced when scanning or photographing an object. Raster images are compiled using pixels, or tiny dots, containing unique color and tonal information that come together to create the image.

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3 years ago

CHALLENGE ACTIVITY |

fredd [130]

Answer:

maxSum = FindMax(numA, numB) + FindMax(numY, numZ);

The maxSum is a double type variable which is assigned the maximum of the two variables numA numB PLUS the maximum of the two variables numY numZ using FindMax function. The FindMax() method is called twice in this statement one time to find the maximum of numA and numB and one time to find the maximum of numY numZ. When the FindMax() method is called by passing numA and numB as parameters to this method, then method finds if the value of numA is greater than that of numB or vice versa. When the FindMax() method is called by passing numY and numZ as parameters to this method, then method finds if the value of numY is greater than that of numZ or vice versa. The PLUS sign between the two method calls means that the resultant values returned by the FindMax() for both the calls are added and the result of addition is assigned to maxSum.

Explanation:

This is where the statement will fit in the program.

#include <iostream>

using namespace std;

double FindMax(double num1, double num2) {

double maxVal = 0.0;

if (num1 > num2) { // if num1 is greater than num2,

maxVal = num1; // then num1 is the maxVal. }

else {

maxVal = num2; // num2 is the maxVal. }

return maxVal; }

int main() {

double numA;

double numB;

double numY;

double numZ;

double maxSum = 0.0;

maxSum = FindMax(numA, numB) + FindMax(numY, numZ);

cout << "maxSum is: " << maxSum << endl; }

Lets take an example to explain this. Lets assign values to the variables.

numA = 6.0

numB = 3.0

numY = 4.0

numZ = 9.0

maxSum =0.0

maxSum = FindMax(numA, numB) + FindMax(numY, numZ);

FindMax(numA,numB) method call checks if numA>numB or numB>numA and returns the maximum of the two. Here numA>numB because 6.0 is greater than 3.0. So the method returns numA i.e. 6.0

FindMax(numY, numZ) method call checks if numY>numZ or numZ>numY and returns the maximum of the two. Here numZ>numY because 9.0 is greater than 4.0. So the method returns numZ i.e. 9.0

FindMax(numA, numB) + FindMax(numY, numZ) this adds the two values returned by the method FindMax for each call.

FindMax returned maxVal from numA and numB values which is numA i.e. 6.0.

FindMax returned maxVal from numY and numZ values which is numZ i.e. 9.0.

Adding these two values 9.0 + 6.0 = 15

So the complete statement FindMax(numA, numB) + FindMax(numY, numZ) gives 15.0 as a result.

This result is assigned to maxSum. Hence

maxSum = 15

To see the output on the screen you can use the print statement as:

cout<<maxSum;

This will display 15

6 0

3 years ago

What type of software resides on a computer’s hard drive, and controls the CPU and all other activity between components?

myrzilka [38]

Operating System (OS) is the answer.

An application runs in/on an OS. It is not the OS itself. Like Word or Chrome are applications.

Systems is too generic and not specific enough to mean anything in this context. Throw away answer.

Network Operating System does not 'usually' run on a hard drive but on memory chips in things like routers, wireless access points and switches that move network traffic.

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3 years ago

A cookie is.... a. an illegal use of information about a customer b. a feature of a Web site designed to attract children c. a f

Elodia [21]

Answer:

C. A file that a Web site stores on a visitor's computer

Explanation:

Have a nice day! :)

3 0

2 years ago