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3 years ago

State and give reason, if the following variables are valid/invalid:

Computers and Technology

1 answer:

rodikova [14]3 years ago

4 0

Answer:

See Explanation

Explanation:

Variable: daysInYear

Valid/Invalid: Valid

Reason: It begins with a letter; it is not a keyword, and it does not contain a hyphen

Variable: 4numberFiles

Valid/Invalid: Invalid

Reason: It begins with a number

Variable: Combination-month_game

Valid/Invalid: Invalid

Reason: It contains a hyphen

Variable: Suncity.school sec54

Valid/Invalid: Invalid

Reason: It contains a dot and it contains space

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Henry has created a software product that manages a database of company clients. He wants to install the software on a client's

UkoKoshka [18]

Answer:

The answer is " Run the software on the original web browser practically".

Explanation:

The Virtual servers enable you to run programming not programmed to the devices. Let's all presume which Henry's software will operate on computers but not on the mac. Since Mac is unable to run this software, it can practically install Linux on MC and install this.

The several common software applications such as parallels, VMware, and Virtual machines could be practically used during mac to install windows.
Its platform operating system from a macOS software perspective is a true physical computer with almost everything set.

5 0

2 years ago

What is malware? What are some signs that malware may be impacting the performance of your computer? How can you avoid malware?

Anni [7]

Answer:

Malware is a type of software that is specifically designed to disrupt, damage, or gain unauthorized access to a computer system. Malware can be spread through email attachments, online advertisements, websites, and other methods.

Some signs that malware may be impacting the performance of your computer include:

Your computer is running more slowly than usual
Your computer crashes frequently
Your computer has pop-up ads or other unwanted behavior
Your default homepage or search engine has changed without your permission
You see new icons or programs on your desktop that you didn't install

To avoid malware, you should be cautious when browsing the internet and avoid visiting suspicious websites. You should also avoid opening email attachments from unknown senders, and be wary of online advertisements. You can also protect your computer by using antivirus software and keeping it up to date.

3 0

1 year ago

Computer A has an overall CPI of 1.3 and can be run at a clock rate of 600 MHz. Computer B has a CPI of 2.5 and can be run at a

kirill115 [55]

Answer:

Check the explanation

Explanation:

CPI means Clock cycle per Instruction

given Clock rate 600 MHz then clock time is Cー 1.67nSec clockrate 600M

Execution time is given by following Formula.

Execution Time(CPU time) = CPI*Instruction Count * clock time = $\frac{CPI*Instruction Count}{ClockRate}$

for system A CPU time is 1.3 * 100, 000 600 106

= 216.67 micro sec.

for system B CPU time is $=\frac{2.5*100,000}{750*10^6}$

= 333.33 micro sec

c) Since the system B is slower than system A, So the system A executes the given program in less time

Hence take CPU execution time of system B as CPU time of System A.

therefore

216.67 micro = = $\frac{2.5*Instruction}{750*10^6}$

Instructions = 216.67*750/2.5

= 65001

hence 65001 instruction are needed for executing program By system B. to complete the program as fast as system A

3 0

3 years ago

1. Describe your Microsoft word skills that need to be improved upon the most. 2. Explain the Microsoft word skills you are most

Andrei [34K]

Answer:

The answer varies from person to person.

Explanation:

All kinds of people are using Word, so people would recognize if the answer if plagiarized. So, simply answer truthfully; no matter h1ow embarrasing.

7 0

3 years ago

In this lab, you use the flowchart and pseudocode found in the figures below to add code to a partially created C++ program. Whe

never [62]

Answer:

The equivalent program in C++:

#include<iostream>

#include <sstream>

using namespace std;

int main(){

string Score, Rank;

cout<<"Enter student score and class rank: ";

cin>>Score>>Rank;

int testScore = 0, classRank = 0;

stringstream sstream(Score);

sstream>>testScore;

stringstream tream(Rank);

tream>>classRank;

if (testScore >= 90){

if(classRank >=25){cout<<"Accept";}

else{cout<<"Reject";}

}

else if(testScore >= 80){

if(classRank >=50){cout<<"Accept";}

else{cout<<"Reject";}

}

else if(testScore >= 70){

if(classRank >=75){cout<<"Accept";}

else{cout<<"Reject";}

}

else{cout<<"Reject";}

return 0;

}

Explanation:

This declares Score and Rank as string variables

string Score, Rank;

This prompts the user for score and class rank

cout<<"Enter student score and class rank: ";

This gets the user input

cin>>Score>>Rank;

This declarees testScore and classRank as integer; and also initializes them to 0

int testScore = 0, classRank = 0;

The following converts string Score to integer testScore

stringstream sstream(Score);

sstream>>testScore;

The following converts string Rank to integer classRank

stringstream tream(Rank);

tream>>classRank;

The following conditions implement the conditions as given in the question.

If testScore >= 90

if (testScore >= 90){

If classRank >=25

if(classRank >=25){cout<<"Accept";}

If otherwise

else{cout<<"Reject";}

} ---

If testScore >= 80

else if(testScore >= 80){

If classRank >=50

if(classRank >=50){cout<<"Accept";}

If otherwise

else{cout<<"Reject";}

}

If testScore >= 70

else if(testScore >= 70){

If classRank >=75

if(classRank >=75){cout<<"Accept";}

If otherwise

else{cout<<"Reject";}

}

For testScore less than 70

else{cout<<"Reject";}

3 0

2 years ago