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kkurt [141]
3 years ago
6

Which of these statements is true? Steve Jobs invented the mouse as an input device. Bill Gates invented the mouse as an input d

evice. Douglas Engelbart invented the mouse as an input device. John Dvorak invented the mouse as an input device.
Computers and Technology
1 answer:
Komok [63]3 years ago
4 0

Answer:

Douglas Engelbart

Explanation:

In 1968 Douglas C. Engelbart  publicly present the first ever computer mouse at the fall joint computer conference in San Francisco.

The actual invention of computer mouse was in 1964.

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HELP ASAP WILL GIVE BRAINLY Question 19 Multiple Choice Worth 5 points) (05 03 MC) Network technologies specialist Hannah has be
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Network technologies specialist Hannah would need to configure: C. RIP version 2 using Internet Protocol Version 4 (TCP/IPv4).

<h3>What is RIP?</h3>

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3 years ago
Read 2 more answers
Matching parentheses. An math expression may have a number of parentheses like (, ), [, ], { and }. Each openning parenthesis (,
Solnce55 [7]
C++ Code

#include
using namespace std;

bool match(const char exp[],const int s)
{
// declare a character array to perform stack operations
char stack[s];

// declare top and initialize to -1 and flag to 0
int top=-1,i,flag=0;

// visit all characters in the expression string
for(i=0;i {
// if the character is [ or ( or { then push it into stack
if(exp[i]=='[' || exp[i]=='(' || exp[i]=='{')
{
top++;
stack[top]=exp[i];
}
// if the character is ] or ) or } then check conditions
else if(exp[i]==']' || exp[i]==')' || exp[i]=='}')
{
// check stack is empty or not
if(top!=-1)
{
// check all possible failure conditions
if(exp[i]==')' && (stack[top] == '{' || stack[top]=='['))
{
flag = 1;
break;
}
else if(exp[i]==']' && (stack[top] == '{' || stack[top]=='('))
{
flag = 1;
break;
}
else if(exp[i]=='}' && (stack[top] == '(' || stack[top]=='['))
{
flag = 1;
break;
}
top--;
}
else
{
flag=1;
break;
}
}
}
// after visiting all characters of expression string check if stack is not empty and flag is 1. if any one of the condition is true return false. otherwise return true

if(top>=0 || flag==1)
return false;
else
return true;
}

int main()
{

// declare character array to store expression
char exp[10000];
cout<<"Enter an Expression"<
// read expression from user
cin.getline(exp, 10000);
int s=0;

// find the length of the expression string
for(int i=0;exp[i]!='\0';i++)
{
s++;
}

// call the match function
bool status = match(exp,s);

// print the result based on value returned by match() function
if(status == 1)
cout<<"true"< else
cout<<"false"<
}


Sample Input/Output is attached

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timurjin [86]

Answer:

They are called System Requirements.

Explanation:

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