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Showing posts from March, 2019



Even though, I have collected some information for you to build a entry level and budget gaming pc here in Nepal. 
Entry Level Home/Office Build This type of pc is for th…

Types of Computer Viruses | Types of Viruses on Computer

Types of Computer Viruses  Types of Viruses on Computer On the basis of their ways of infecting, viruses can be categorized into various types. Among them some common types of computer viruses are described below. Boot Sector or Start up Infector Virus: It is also called Boot record infectors virus. Start up infector virus infects the boot record or Master Boot Record (MBR) of the disk and replace the boot record program, copy elsewhere or overwrite it. This type of virus is loaded during the booting time and create the bad sectors on the disk and affect the entire computer system. This virus generally hides in the boot sector, in either the bootable disk or the hard drive.
Boot Infector or Operating System Infector Virus: This is a common type of computer virus which infects the various parts of the Operating System or Master Control Program (MCP) and deletes and corrupts the system files necessary for booting. Thus, when these files are corrupted the Operating System cannot be loaded…

Symptoms of Computer Virus

Symptoms of Computer Virus Today, there are thousands of computer viruses and the numbers of computer viruses increasing daily. These viruses show different symptoms in the computer. Some viruses create problems in application files, some change the location of file, some hide files, some reduce memory size and some produce unnecessary messages on the screen and so on. Some of the common symptoms of computer viruses are as follows:

Viruses reduce the memory space of computer.Viruses change the size of computer files.Viruses change the location and extension of files.Viruses may slow down computer systems and reduce computer's ability to work.Viruses change the sequence of program instructions so that computer cannot perform task according to user's instructions.Viruses delete the some portion of data from the database.Viruses show unusual error messages frequently on the computer screen.Viruses open programs automatically without giving instruction.

Cause of Creating Computer Viruses

Cause of Creating Computer Viruses Number of computer viruses are increasing day by day with the increase in the usage of the Internet. There are thousands of types of computer viruses with their unique cause of creation showing different symptoms on the computer respectively.

People create computer viruses for many purposes. The main cause of making computer viruses are as follows:

To stop the software piracy, the software developers themselves create computer viruses to stop illegal reproduction of software.To steal sensitive information such as personal details, credit card numbers, bank account numbers, passwords, data, etc. To earn money by selling anti virus.To take control of a computer and use it for specific tasks.To show programming skill and talent. To give entertainment to the computer users by displaying funny messages or pictures on the screen.

Evolution of Computer Viruses and Anti-virus

Evolution of Computer Viruses and Anti-virus The roots of the modern computer viruses go back to 1949 when Hungarian mathematician, JOHN VON NEUMANN introduced the concept of replicating computer program. He presented a paper on the "Theory and Organization of Complicated Automata," in which he postulated that a computer program could reproduce. This theory was tested in the 1950's at Bell Laboratories when a game called "Core Wars" was developed, in which players created tiny computer programs that attacked, erased and tried to propagate on an opponent's system. In 1983, American electronic engineer FRED RICK COHEN first introduced the term "COMPUTER VIRUS" to describe a self-replicating computer program. In 1987 two Pakistani brothers AMJAD and ALVI created the world's first PC virus named "C-Brain". The brothers created the virus to stop pirated copies of software software developed from Alvi's Brain Computer Shop. This virus…

11 Simple Tips to Protect Your Computer from Viruses and Malware in 2020 | Methods to Protect Computer from Viruses

11 Simple Tips to Protect Your Computer from Viruses and Malware in 2020A computer virus is an illegal, self-replicating destructive program that disturbs the normal functioning of the computer in many ways.
Computer viruses are those programs that are capable of reproducing themselves and capable of spreading from one computer to others through different media. Today, there are thousands of computer viruses and the number of computer viruses is increasing daily. These viruses show different symptoms on the computer.
Viruses' main mission is to spread out and then get active. Some viruses just spread out and never activate. Viruses when spread out, make copies of self. Computer viruses spread from one computer to others through E-mail, the Internet, a USB drive (pen drive), floppy disks, CD/DVD and other storage devices. Computer viruses cause great harm to our computer system. Viruses irritate us while using a computer by showing unexpected behavior in the computer, Annually, mi…

Impact of the Internet in Today's World

Impact of the Internet in Today's World
The Internet is the largest computer network that connects millions of computers and several networks around the world. The billions of people throughout the world are using the Internet at the same time. It is the most widely used technology in today's world.
Nowadays, it is hard to imagine anyone not having heard of the term Internet. The role of Internet in out daily life is becoming very important. The Internet has great effects on society especially the way people communicate and interact with each other and the way certain tasks are being done. It has changed the way we communicate, way we get information, way we buy goods, way we do business and so on. It has also affected the living standard of people.
The Internet has changed the way people communicate and interact with one another, obtain information and certain tasks. With the Internet, a person can send messages using the email technology and messengers. Before the Internet …