Suyog Kandel

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COMPUTER VIRUS

COMPUTER VIRUS Introduction Computer viruses are simply the programs which infect our computer hardware and software. They are not biological viruses. They are developed by using programming language. Computer viruses are the man-made small malicious programs that disturbs the normal functioning of the computer in many ways. Viruses are capable of reproducing themselves and capable of causing great harm to data or other programs on the computer system. They may damage data and software in the computer. Viruses also produce several unusual symptoms in our computer and gives trouble to the user while working with computer. They irritate the user by showing unexpected behavior in the computer screen. At the first time, computer viruses was created by the computer programmers to give entertainment for computer users by displaying different funny messages on the screen. We can define computer viruses in the following ways: Computer virus is a small malicious program cap...

Best Creative Ideas For Creating A Website To Make Money Online

Best Creative Ideas For Creating A Website To Make Money Online Don’t know what topic to start your blog on? Wondering what kind of website you should create today? Starting a Blog is actually easy. Anyone can start a Blog in 5 minutes. Thousands of new Blogs are started every day. But there are a few people only who create Blogs that matter. There are websites about nearly everything imaginable, but that doesn’t mean they are all good! “Anyone can start a blog, but very few people start a blog that matters.” I believe that anyone who puts in the right amount of focused effort can build an audience online, even if it is about an obscure topic. There are literally a zillion ideas on what website to make. Even the silliest ones, could potentially be a great idea. All of these unique ideas for a website can be started right now, without having to invest a lot of money, or hire expensive professionals. Everyone is obsessed with making the...

PC Build in Nepal | Entry Level and Budget Gaming PC Build in Nepal

PC Build in Nepal Computer parts are very expensive in Nepal as compared to other developing nations like India and Pakistan, etc. The prices were already high due to the low currency value of Nepal and after the increase in VAT% by our corrupt Prime Minister K.P Oli Chor and lootna sakee loot concept by his fellow political party representatives, everything is getting worse day by day in Nepal. It is very hard for a middle-class family to afford even a budget gaming PC in Nepal. Even, i3 8100 will cost you more than 135 US$ here in Nepal. 🤣🤣🤣🤣🤣 In some places, the pc parts are priced exactly double than that of the official price based on US currency. Even a budget gaming pc will cost around 125k NRS ~ 1111$ (US$) here in Nepal which can be available for just under ~650$ in other countries with the same specs. Even though, I have collected some information for you to build an entry-level and budget gaming pc here in Nepal. Entry Level Home/Office Build...

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 O...

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 viru...