In a Computer, a virus is a?

RRB Staff Nurse Mumbai-2015

Computer and Nursing Information

Easy

Appeared in: RRB Staff Nurse Mumbai-2015

Explanation

A computer virus is a type of malicious software (malware) designed to spread from one computer to another.
It works by replicating itself and inserting its code into other programs or files.
When the host program is run, the virus code is also executed, allowing it to spread and potentially cause harm.
Software is the general term for programs, applications, and data that run on a computer, as opposed to hardware, which are the physical components.

Option A: Hardware refers to the physical, tangible components of a computer system, such as the CPU, memory, and monitor. A virus is a non-physical program (code).
Option C: A bacterium is a single-celled biological organism. While the term 'virus' is borrowed from biology, a computer virus is a piece of code and is not a living entity.
Option D: A dust particle is a tiny piece of physical matter. While dust can accumulate and cause hardware to overheat or fail, it is not a program and does not replicate or infect files.

Visual 1: Infographic - A clear visual chart distinguishing between Hardware (showing images of a CPU, keyboard, monitor) and Software (showing logos of operating systems, apps, and a skull icon for viruses).
Visual 2: Flowchart - A simple diagram showing how a computer virus spreads: from an infected email attachment/USB drive -> to a host file on the computer -> execution of the file -> replication and spreading to other files/computers.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Definition of a Computer Virus as background academic context rather than a clinical decision trigger.
In nursing informatics, understanding the nature of computer viruses is critical for maintaining cybersecurity and protecting sensitive patient information stored in Electronic Health Records (EHRs).
A virus attack on a hospital network can disrupt patient care by making records inaccessible, causing medical devices to malfunction, or compromising communication systems.
Nurses are on the front line of digital security and must be trained to recognize phishing attempts, use strong passwords, and follow protocols for using external devices like USB drives to prevent introducing malware into the clinical environment.

How to Approach the Question

First, analyze the question stem to identify the key terms: 'Computer' and 'virus'. This establishes the context as technology, not biology.
Next, evaluate each option based on this context.
Option A, 'Hardware', refers to physical parts. A virus is not physical, so this is incorrect.
Option B, 'Software', refers to programs and code. A computer virus is a type of program, making this a strong candidate.
Option C, 'A bacterium', is a biological term. This is a distractor that plays on the word 'virus'. Since the context is computers, this is incorrect.
Option D, 'A dust particle', is a physical contaminant. It's irrelevant to the nature of a virus as a program. This is incorrect.

Concept Tested & Keywords

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