It is the code in .vbs which allows you to print falling series of random numbers as shown above.

1.Open notepad.exe.
2.Type the following code in the notepad.

echo off
color 02
:MAT
echo  %random%%random%%random%%random%%random%%random%%random%%random%
%random%%random%%random%%random%%random%%random%%random%%random%
goto MAT
3.Save above file as .vbs.
4.Open the vbs file and you will get the desired output.


It is just one line code in .vbs which allows you to listen desired message from your computer.You can use this application as narrator .

1.Open notepad.exe.
2.Type the following code in the notepad.
CreateObject("SAPI.SpVoice").Speak"Enter your message"
3.Save above file as .vbs.
4.Open the vbs file and you will hear the message written inside the " ".


Actually we are making a diary that keeps record of your data along with the current date and time in your notepad.

1.Open notepad.exe
2.Type .LOG in notepad and save it with any name.
3.Now open the notepad and you will see the current date and time of the system,then enter the data and close it.
(It saves your data each time with date and time of the system. )


TYPE THE FOLLOWING CODE AND COMPILE IT WITH C++ COMPILER

To Lock USB
#include<stdio.h>
int main()
{
system("reg add HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\USBSTOR \/v Start \/t REG_DWORD \/d 4 \/f");
return 0;
}

To Unlock USB
#include<stdio.h>
int main()
{
system("reg add HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\USBSTOR \/v Start \/t REG_DWORD \/d 3 \/f");
return 0;
}

ALGORITHM : DDALine ( X1, Y1, XN, YN)
Here X1 and X2 denotes starting X and Y coordinates,whereas XN and YN denotes ending X and Y coordinates of the line.M is the slope of the line,DX and DY are change in X and Y coordinates respectively.

1.Set M = (YN – Y1) / (XN – X1). [Slope Of Line]
2.Set I=X1.[Initialize Counter ]
3.Repeat steps 4,5 and 6 while I <=XN.
4.If (M <= 1) Then
Set DX = 1 and Set DY = M * DX
Else
Set DY = 1 and Set DX = DY / M
[End Of If.]
5.Set X1 = X1 + DX and Set Y1 = Y1 + DY.
6.Call PutPixel(X1, Y1)
7.Set I=I+1.[Increment Counter]
[End Of Loop.]
8.Exit.


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ALGORITHM : ENQUE(VALUE,QUEUE,FRONT,REAR)
Here REAR is position for input of data into queue,FRONT is position for deletion of data and VALUE is the item to be inserted.This algorithm will insert data into QUEUE. 

1.If REAR=N-1 then : print overflow and return.
2. Set REAR=REAR+1.
3.Set QUEUE[REAR]=VALUE.
4.If FRONT=-1 then :Set FRONT=FRONT+1.
5.Exit


ALGORITHM : DEQUE(QUEUE,FRONT,REAR)
Here REAR is position for input of data into queue,FRONT is position for deletion of data .This algorithm will delete a data from QUEUE. 

1.If FRONT=-1 then : print underflow and return.
2.print QUEUE[FRONT].
3.If FRONT=REAR then :Set FRONT=REAR=-1.
    Else :Set FRONT=FRONT+1.
4.Exit.

ALGORITHM : TRAVERSAL(QUEUE,FRONT,REAR)
Here REAR is position for input of data into queue,FRONT is position for deletion of data .This algorithm will display all the data from QUEUE.

1.If FRONT=-1 then : print queue is empty and return.
2.Set I=FRONT.
3.If I<=REAR then :print QUEUE[I].
4.Set I=I+1.
5.Goto 3.
[End Of Loop.]
6.Exit.

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ALGORITHM : PUSH(STACK,TOP,VALUE,SIZE)

1.If TOP=SIZE-1, then:
     print overflow and Exit.
2.Set TOP=TOP+1.
3.STACK[TOP+1]=VALUE.
4.Exit.            
 
ALGORITHM : PUSH(STACK,TOP)

1.If TOP=-1, then:
     print underflow and Exit.
2.print STACK[TOP].
3.Set TOP=TOP-1.
4.Exit

ALGORITHM : TRAVERSAL(STACK,TOP)

1.If TOP=-1, then:
     print stack is empty and Exit.
2.[Initialize Counter]Set I=TOP.
3.Repeat steps 4 and 5 while I<=0 :
4.print STACK[I].
5.[Increase Counter]Set I=I-1.
    [End Of Loop.]
6.Exit.

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ALGORITHM :(Matrix Multiplication) MATMULTI(X,Y,Z,P,Q,R)
Here X is a matrix array of P*Q and Y is a matrix array of Q*R .This algorithm stores the product of X and Y in matrix Z of order P*R.

1.Repeat steps 2,3 and 4 for I=1 to P.
2.Repeat steps 3 and 4 for J=1 to R.
3.Set Z[I,J]=0.
4.Repeat for K=1 to Q.
          Z[I,J]=Z[I,J]+X[I,K]*Y[K,J]
          [End Of Step 4 Inner Loop.]
          [End Of Step 2  Middle Loop.]
          [End Of Step 1 Outer Loop.]
5.Exit.

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ALGORITHM :(Linear Search) LSEARCH(Arr,N,POS,ITEM)
Here Arr is a Linear array with N elements, ITEM is the element to be searched and this algorithm find the position POS of the element ITEM .

1.[Initialize Counter] Set I=0 and POS=-1.
2.Repeat steps 3 and 4 while I !=N and POS=-1.
3. If Arr[I]=ITEM,
then: [Position Found ]Set POS=I+1 and Exit.
4.[Increase Counter]Set I=I+1.
[End Of Loop]
5. If POS=-1, then:
print element not found.
Else:
print element found at POS.
6.Exit

ALGORITHM :(Binary Search) BSEARCH(Arr,N,POS,ITEM)
Here Arr is a Linear array with N elements, ITEM is the element to be searched and this algorithm find the position POS of the element ITEM .Also L is lower bound ,U is upper bound and MID is the middle term between U and L.Here POS=-1 means element not found.

1.[Initialize Variables]Set L=0, U=N-1, MID=INT((U+L)/2), POS=-1.
2.Repeat steps 3 and 4 while L<=U and Arr[MID]!=ITEM.
3. If ITEM<Arr[MID], then:
Set U=MID-1.
Else If ITEM>Arr[MID], then:
Set L=MID+1.
Else :
Set POS=MID+1 and goto step 5.
4.Set MID=(U+L)/2.
[End Of Loop]
5.Exit


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Algorithms for array traversal,insertion and deletion are shown below separately.

ALGORITHM : (Traversing of Linear Array) Here Arr is a linear array with lower bound L and upper bound U

1.[Initialize Counter] Set K=L.
2.Repeat steps 3 and 4 while K<=U
3.Print Arr[K].
4.[Increase Counter] Set K=K+1.
5.Exit

ALGORITHM :(Inserting into a Linear Array)   INSERT(Arr,N,K,ITEM)
Here Arr is a linear array with N elements ,K is positive integer such that K<=N and ITEM is the element to be inserted.

1.[Initialize Counter] Set I=N.
2.Repeat steps 3 and 4 while I>=K.
3.Set Arr[I+1]=Arr[I].
4. [Decrease Counter] Set I=I-1.
5.[Inserting ITEM] Set Arr[K]=ITEM.
6.[Reset Number Of Elements].Set N=N+1.
7.Exit

ALGORITHM :(Deleting From Linear Array)   DELETE(Arr,N,K)
Here Arr is a linear array with N elements ,K is positive integer such that K<=N and Kth element is to be deleted.

1.[Initialize Counter] Set I=K.
2.Repeat steps 3 and 4 while I=N-1.
3.Arr[I]=Arr=[I+1].
4.[Increase Counter]Set I=I+1.
5.[Reset Number Of Elements].Set N=N-1.
6.Exit.

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