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.

      Comments

      Popular posts from this blog

      Uses Of Computer In Education Field

      Computer can be used in education in the following ways:  Computers In Teaching and Learning Process ( Computer Aided Learning - CAL ) Computers are being used actively in educational institutes to improve the learning process. Teachers can use audio video aids through computer to prepare lesson plans. They can use Microsoft Power Point to prepare electronic presentations about their lectures. These electronic presentations will be displayed on multimedia projectors in class rooms. This will be interesting and easy to learn for students. Multimedia presentations are easy to deliver for teachers too, These presentations save a lot of effort and time. Moreover multimedia presentations are interesting to view and hear sound and visual  effects. Computers will be helpful for:                        Instructing the students using PowerPoint slides, Word documents or Web pages and using hyperlinks for better concept clarity.      2.  Helps in improving pronunciation of

      Explain different types of storage devices

      Topic: Explain different types of storage devices in Computer systems Storage Devices Storage devices are used to store data and instructions permanently. Storage devices are also called secondary storage devices / backing storage devices / external storage devices or auxiliary storage devices. Examples of storage devices include Hard Disk, CD and DVD etc. Why Secondary Storage Devices are Used? Secondary storage devices are used because: Primary memory(RAM) is volatile and temporary. When computer is switched off, all data in ram is erased. Storage devices can store large amounts of data and instructions permanently whereas Primary memory has less capacity of storing data. Types Of Storage Devices There are three main types of storage devices:  Magnetic Tape   Magnetic Disk   Optical Disk   Flash Memory storage devices 1. Magnetic Tape Magnetic tape is the oldest storage device. It is made of plastic coated with magnetic material. Data is stored on mag

      Discuss Differences Between RAM and ROM

      We have already discussed the topics: 1. What is RAM, Explain Different Types of RAM 2. What is ROM Explain Different Types of ROM Here we discuss differences between RAM and ROM 13 Differences Between RAM and ROM Thirteen Differences Between RAM and ROM Sr # RAM ROM 1 RAM stands for Random Access Memory ROM stands for Read Only Memory. 2 RAM is a temporary memory. ROM is a permanent memory. 3 RAM is a volatile memory. ROM is a non volatile memory. 4 When computer is turned off, all data and programs are erased from RAM.  When computer is turned off, all data and programs are retained in ROM. 5 RAM is a Read / Write memory. Data can be read and written to RAM. ROM is a read only memory. Data from ROM only can be read and not written. 6 Data and programs in RAM can be changed. The contents of ROM cannot be changed. 7 Data or