What is Virus in Operating System?

Learn Virus definition in operating system with explanation to study “What is Virus”. Study virus explanation with operating system terms to review operating system course for online degree programs.

Virus Definition

  • Secret undocumented routine embedded within a useful program.

    Operating Systems by William Stallings

Virus Explanation

A virus is a computer code, which is capable of affecting computer data badly by corrupting or destroying them. A computer virus is actually a malware that replicates itself by modifying other computer programs and inserting its own code, while infecting your system.

Keep Learning Operating System Explanations

What is Access Method?

Access method is a program or a hardware mechanism that moves data between the computer and an outlying device such ...

What is Kernel?

A kernel is the central part of an operating system. The task of a kernel is to manage the operations ...

What is Segmentation?

Segmentation is a memory management technique in which, the memory is divided into the variable size parts. Each part is ...

What is Physical Address?

A physical address is a memory address that is represented in the form of a binary number on the address ...

What is Process Control Block (PCB)?

Process Control Block also called Task Controlling Block, Task Struct or Switchframe, is a data structure containing the information needed ...

What is Multiprocessor?

Multiprocessor is a type of processor that constitutes of two or more central processing units (CPUs) within a single computer ...