Answer:
Mainframes
Explanation:
Mainframes are utilized by many major corporations and government agencies. They are also used in banking, accounting, and healthcare to name a few.
1. ms-dos 1981
2. windows 2.0 1987
3. windows xp 2001
4. mac os 2001
5. windows 7 2009
Answer:
True is the correct answer for the above question.
Explanation:
- When any document file is opened then every point has some particular address. so there is a pointer which states that where the read operation and the write operation is going on.
- When any person writes any program to read a file or write a file then there is a need for some variable that is pointed for the reading and the write operation.
- The document which is used for the write data or read data is also designed and maintained by some software.
- Hence we can say that there are needs of some variable that point the operation of the file and it is also stated from the above question. Hence the above question statement is a true statement.
Answer:
The correct Answer is 0.0571
Explanation:
53% of U.S. households have a PCs.
So, P(Having personal computer) = p = 0.53
Sample size(n) = 250
np(1-p) = 250 * 0.53 * (1 - 0.53) = 62.275 > 10
So, we can just estimate binomial distribution to normal distribution
Mean of proportion(p) = 0.53
Standard error of proportion(SE) = 
= 
= 0.0316
For x = 120, sample proportion(p) = 
= 
= 0.48
So, likelihood that fewer than 120 have a PC
= P(x < 120)
= P( p^ < 0.48 )
= P(z < 
) (z=
)
= P(z < -1.58)
= 0.0571 ( From normal table )
// Making a function that will take a integer as argument and return print the code
void Print(int statuscode){
// starting the switch statement on the interger sent
switch(statuscode)
case 200: // for case 200
cout << "Ok,Fullfilled"<< endl;
case 403: // for case 403
cout << "Forbidden" << endl;
case 404: // for case 404
cout << "Not Found" <<endl;
case 500: // for case 500
cout << "Server Error "<< endl;
default: // default case
cout << " Wrong code"<<endl;
}
