Skip to main content

Damages Caused by Computer Virus

A computer virus is a program or software that can disturb normal working of a computer system. A computer virus may cause many types of damage to a computer system. A Computer virus can attache to files in memory or disk. When we copy infected files from one computer to another, virus is also copied.
A Computer virsu can harm a computer system in the following ways:

Disadvantages of Computer Virus

    1. Damage of Data, Information and Software


    A Computer virus may damage data, information and software of the computer. Data is the most important part of an organization. For example, a bank totally depends on financial transactions and any loss of even a little data can be dangerous. Moreover, if computer virus corrupts files of a software, you will have to reinstall the software.

    2. Deletion of Stored Files


    A Computer virus may delete important data files stored in a computer.

    3. Format Hard Disks


    A Computer virus can delete all data on hard disk by formatting the hard disk. Formatting a hard disk will erase all the data on a hard disk, including any type of data or software etc. You will consume a lot of time to reinstall all the software and recover data.

    4. Annoying Popup Window Messages

    A Computer virus may display a popup window message every few seconds or minutes. This will interrupt your work, waste your precious time and you will not be able to use your computer efficiently.

    5. Restarting a Computer

    A Computer virus may cause a computer to restart again and again. Such viruses execute a specific set of instructions at the start-up time that cause to restart the computer.

    6. Slow Down System Performance


    A Computer virus may slow down the working of computer. It may replicate itself in memory (RAM). So, there is a time when no more RAM to execute programs. This may halt the smooth operation of the computer.

    7. Fill Disk Space

    A Computer virus may consume a lot of disk space by copying it self in different areas of a hard disk. This will consume disk space making it impossible to copy or store your important data on disk.

    8.    Stealing of Important Personal Information

    A Computer virus may cause to send your personal information to the creator of the virus through internet. When you will connect internet, the virus code will execute and send your personal information to a specific email address.

    9. Fake Virus Alerts


    A Computer virus can display a fake virus alert and may ask to install an Anti Virus from the website of the virus creator.

    10. Making a Computer Unusable

    A Computer virus may make your computer totally unusable. Sometimes, a computer virus can erase all data of your hard disk or Operating system files causing the computer not to boot.
      Labels:

      Comments

      Post a Comment

      Popular posts from this blog

      Introduction to Algorithms and Algorithmic Notation With Examples

      Topic: Introduction to Algorithm and Algorithmic Notation With Examples What is an Algorithm? The step by step procedure to solve a particular problem is called an Algorithm .  A Good Programmer always writes algorithms before developing programs. Algorithmic Notation with example algorithms  Advantages of  writing an Algorithm The process of solving a problem becomes simpler and easier with the help of  algorithm. There are less chance of errors in the program, if we design algorithms before writing our programs in any programming language. We can convert an algorithm into a program of any programming language. It is not dependent on any programming language. Therefore it is easy to understand for anyone even without programming knowledge. What is the Relationship between an Algorithm and a Program Sponsored Links An algorithm is the sequenc of steps to perform a task, whereas a program is the set of statements to perfor...
      Post a Comment
      Read more

      Define Data and Information With Examples

      DATA Data is the collection of raw facts and figures. Actually data is unprocessed, that is why data is called collection of raw facts and figures. Define Data and Information with Examples We collect data from different resources. After collection, data is entered into computer for processing. Data may be collection of words, numbers, pictures,  or sounds etc. Examples of Data 1) Student Data on Admission Forms When students get admission in a college. They fill admission form. This form  contains raw facts (data of student) like name, father’s name, address of student, obtained marks, photo graph etc. 2)    Data of Citizens During census, data of all citizens is collected. The staff will go house to house and collect data about citizens like number of persons living in a home, either they are literate or illiterate, number of children, data of each child, cast, religion, Computerized national Identity Card number, address, how many rooms and...
      4 comments
      Read more

      What are Dual Devices or Both Input/ Output Devices

      The devices that can be used to perform both functions -input and output- are called Dual Devices. These devices are also called Dual Purpose Devices or Both Input/Output Devices. With the help of a dual purpose device, we can enter data into computer as well as we can output data from the computer to outside world.  For example, Dual devices include:  Touch Screen Monitor, Modem, Network Interface Card, Sound card, Hard disk drive, Floppy disk Drive, Magnetic Tape Drive CD-Writer and DVD-Writer etc. These are also called Input/output devices, because they perform both functions. Touch Screen Monitor Dual Devices or Both Input / Output Devices - Touch screens Touch Screen Monitor is an input/output device. It uses a special touch sensitive screen. The User can enter data by touching icons or menus on the screen. As soon as the user selects a command from menu, output is displayed on screen. Commonly touch screen monitors use sensors to detect touch of finger. ...
      1 comment
      Read more