Material (2) electronic virus

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John : From 2004 to  2010, Kelvin hack me by this way for 30 times. That mean every 3 months ,  Kelvin use this method to hack me 1 time. 
Me: So, you reinstall the Windows for 30 times and lose all the information of your computer for 30 times.
John : Yes,. 

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John : Nor gate is used for comparing. 
Me: 0 is false. 1 is true.
John : or 0 is mask-interrupt.  1 is process clock line. 
Me: Ok.  It is same as if statement. 
John : Yes,.
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If (Nor gate)
{
Start_up (0 or 1); // Hacker change the field of Object into Stop_all (0 or 1);
return 0; <--- No error. 
}
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Subject [Nor gate]
Object [Start_up] <---- Hacker change the field of object into Stop_all
Interrupt_status [ 0 or 1] 

0 is mask-interrupt.  
1 is process clock line.
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Subject [Start_up]
Object []
Interrupt_status [0 or 1]
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//Subject [Stop_all]
//Object []
//Interrupt_status [0 or 1]
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John : If the register of start_up work,  it must be on process clock line.
Me: True. If the register of Start_up is always at mask interrupt,  this register never work.
John : In this case, no error. 


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