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skad [1K]
4 years ago
9

Who invented the touchscreen? When and which company makes it?

Computers and Technology
1 answer:
docker41 [41]4 years ago
4 0

Answer:

Eric A. Johnson

The first touchscreen was invented in 1965 by Eric A. Johnson who worked at the Royal Radar Establishment in Malvern, England. His first article, "Touch display—a novel input/output device for computers" describes his work and features a diagram of the design. 1982.

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A power supply unit for a computer converts:
mixer [17]
A power supply unit for a computer converts <span>220 Voltage to 110 Voltage.</span>
5 0
3 years ago
Read 2 more answers
A(n) _________ is any system resource that is placed onto a functional system but has no normal use for that system. If it attra
Kisachek [45]

Answer:

Honeytoken

Explanation:

Honeytokens (aka honey traps or honeypots) may be described as bogus or dummy IT resources which are created or placed in a system or network for the sole purpose of attracting the attention of cyber-criminals and being attacked. These might be servers, applications, complete systems or datasets which are placed online (via the public internet, or a public-facing gateway to a private network), in order to attract cyber-attackers.

Honeytokens may be specifically defined as pieces of data which on the surface look attractive to potential attackers, but actually have no real value – at least, not to the attacker. For the owners of the tokens (i.e. the people who set the trap), they can be of great value, as they contain digital information which is monitored as an indicator of tampering or digital theft.

8 0
3 years ago
Consider the following line of code: price= input(Please enter the price: ") What would be the next line in your code that will
hodyreva [135]

Answer:

price float(price)

Explanation:

There are four basic type of data type use in the programming to declare the

variable.

1. int:  it is used for integer values.

2. float:  it is used for decimal values.

3. char:  it is used for character values

4. Boolean: it is used for true or false.

in the question, the one option contain the data type float (price float(price)). So, it store the value in decimal.

price int(price):  it store the value in integer.

price decimal(price):  it is wrong declaration of variable. their is no data type in the programming which name is decimal.

price price(decimal):  it is wrong declaration of variable. their is no data type in the programming which name is price.

6 0
3 years ago
Write a program that will read in aweight in kilograms and grams and will output the equivalent weightin pounds and ounces. Use
ozzi

<u>C++ program for converting kilograms and grams to pounds and ounces</u>

#include <iostream>

using namespace std;

void computation(double kilog, double gram, double& pon, double& oun) /*defining function for computing*/

{

pon = kilog*2.2046;/*Formula for converting*/

oun= gram*0.03527;

}

void output(double pon,double oun)/*For printing output*/

{

   cout << "Pounds are: " << pon << endl;

   cout << "Ounce are: " << oun << endl;

}

void input(double &kilog,double&gram)/*for taking output*/

{

   cout << "Enter kilograms to convert: ";

   cin >> kilog;

  cout << "Enter grams to convert: ";

   cin >> gram;

}

int main() //driver function

{

double kilog = 0.0,gram = 0.0,oun=0.0,pon=0.0;//Initializing

int choice = 0;

while (1) {  

cout << "Enter- 1 for converting kilogram and grams to pounds and ounces" << endl;

cout << "Enter-2 for exiting" << endl;

cout << "Please Enter choice: ";/*Asking choice from user*/

cin >> choice;

if (choice == 1) {

input(kilog,gram);/*Calling function for taking input*/

computation(kilog, gram, pon, oun); /*calling function for computing*/

output(pon,oun);/*calling function for output*/

}

else {

return 0;

}

}

}

<u>Output</u>

Enter- 1 for converting kilogram and grams to pounds and ounces

Enter-2 for exiting

Please Enter choice:1

Enter kilograms to convert:20

Enter grams to convert:10

Pounds are: 44.092

Ounce are: 0.3527

Enter- 1 for converting kilogram and grams to pounds and ounces

Enter-2 for exiting

Please Enter choice: 2

6 0
4 years ago
Write a short program using Python that will:
Alexxx [7]

Answer:

// program in Python to check perfect number

#function to find number is perfect or not

def is_Perfect_Number(n):

   #total variable

   tot = 1

   i = 2

   #sum of all divisor of number

   while i*i<=n:

       if n%i==0:

           tot = tot + i + n/i

       if tot == n and n != 1:

           return 1

       i = i+1  

   return 0

#read until user enter a perfect number

while True:

   #read integer

   num = int(input("Input an integer: "))

   #call the function

   if(is_Perfect_Number(num)):

       print(num,"is perfect number")

       #if perfect number break

       break

   else:

       print(num,"is not a perfect number")

       #ask again

   print("try again.")

Explanation:

Read number from user and then call the function is_Perfect_Number() with  parameter "num".This will find the sum of all divisor of number.If sum is  equal to number then it will return 1 else return 0.If the number is not  perfect then it will again ask to enter a number until user enter a perfect  number.

Output:

Input an integer: 24

24 is not a perfect number                                                                                                

try again.                                                                                                                

Input an integer: 28                                                                                                      

28 is perfect number

6 0
3 years ago
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