CBSE Computer Science

FSF = Free Software Foundation? Heard about it when I read about Linus Torvalds(creator of Linux).

A virus attaches itself to executable code and replicates itself when the code is executed, similar to a biological virus. It may or may not harm the computer, depending on its purpose.
A worm is a software/code entirely designed to harm the computer, and it will operate as soon as it breaks through its security. It also leeches bandwidth.

BOARD OUTPUT PROGRAM I -:

struct POINT
{int X, Y, Z;};

void StepIn(POINT &P, int Step = 1)
{
P.X += Step;
P.Y -= Step;
P.Z += Step;
}

void StepOut(POINT &P, int Step = 1)
{
P.X -= Step;
P.Y += Step;
P.Z -= Step;
}

void main()
{
POINT P1 = {15, 25, 5}, P2 = {10, 30, 20};
StepIn(P1);
StepOut(P2,4);
cout << P1.X << "," << P1.Y << "," << P1.Z << endl;
cout << P2.X << "," << P2.Y << "," << P2.Z << endl;
StepIn(P2,12);
cout << P2.X << "," << P2.Y << "," << P2.Z << endl;
}

OUTPUT-:
16,24,6
6,34,16
18,22,28

the values given to us were different it seems.
but me too verified on c++,got 1 2 mark output wrong[2],but rest of paper was okay(except FSF and data file which will always give me probs)