Answer:
The correct answer for the given question is "Computer virus"
Explanation:
A computer virus is a software program that is installed automatically without user's knowledge and designed to duplicate itself .The main purpose of computer virus is to harm the computer system.
Some of the points regarding computer virus
1.The computer virus contain malicious software Which harm the computer system.
2.It damage the computer computer system in such away that sometimes users will unable to access some certain functionality of computer system.
<span>the basic unit for storing data in exel
is </span><span>The intersection point between a column and a row is a small rectangular box known as a cell. A cell is the basic unit for storing data in the spreadsheet. Because an Excel spreadsheet contains thousands of these cells, each is given a cell reference or address to identify it.</span>
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