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liberstina [14]
2 years ago
14

What are the differences and similarities of computer virus and biological virus. Give 4 examples

Computers and Technology
1 answer:
Papessa [141]2 years ago
6 0

Answer:

During recent months, we’ve witnessed an unexpected and distressing pandemic of a coronavirus disease. What I find especially distressing about it is how the worldwide adversity was caused by just a tiny thing — namely, a virus called SARS-CoV-2.

However, biological viruses have always been a potent threat to humanity, as historic pandemics have proved. No wonder viruses became an ideal weapon model in a totally different world — a world of programming. The first computer viruses were created as early as in the 1970s. Starting as pranks, they evolved to become a major threat to the stability of computer networks worldwide. And the more I think of viruses, both biological and digital, the more amazed I am by their similarities.

We don’t know what kind of challenges viruses of either type will cause in the future, but understanding how they infect, the symptoms they induce, how they spread, and the damage they can cause can help us fight both.

The Common Thread

Let’s start with the basics: What does a virus look like?

computer virus of 1999

Click image for larger version

Figure 1: Pictured on the left is an electron microscope image of SARS-CoV-2 particles - the pandemic-causing coronavirus. Source: NIAID-RML. Pictured on the right is a code snippet of a Melissa, the notorious email-spreading computer virus of 1999. Source: Gizmodo.

The images in Figure 1 might look vastly different, but, essentially, they’re the same: a string of code. In the coronavirus, it’s the RNA genome in a shell; in Melissa, it’s computer code. In both cases, the code is an “instruction” for the virus to follow.

Explanation:

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Answer:

The method written in Java is as follows:

public static String reverseString(String str){

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    int lentt = str.length();

    char[] strArray = str.toCharArray();

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}

Explanation:

This defines the method

public static String reverseString(String str){

This initializes the result of the reversed string to an empty string

    String result = "";

This calculates the length of the string

    int lentt = str.length();

This converts the string to a char array

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This iterates through the char array

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This gets the reversed string

           result+=strArray[i];

This returns the reversed string            

    return result;

}

<em>See attachment for full program that includes the main method</em>

Download txt
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