Final answer:
An operating system is essential for a computer system to be infected by malware, as it provides the necessary environment for malware to execute. While an internet connection can facilitate infection, it is not a strict requirement. A logged-on user is important for triggering infection but is secondary to the necessity of the operating system.
Explanation:
Understanding Malware Infection Requirements
For a computer system or device to be infected by malware, it typically requires certain conditions to be met. Among the options provided—an operating system, an internet connection, and a logged-on user—the most critical requirement is having an operating system.
Here’s why:
- Operating System: Malware specifically targets the vulnerabilities found in operating systems. Without an operating system in place, malware cannot execute its harmful code.
- Internet Connection: While a connection can facilitate the downloading or spreading of malware, it is not strictly necessary for a system to be infected. Malware can also be introduced through removable media such as USB drives.
- Logged-on User: Having a logged-on user is important for the execution of malware, but the presence of an operating system is a prerequisite for interaction with any software.
In summary, the primary requirement for malware infection is the presence of an operating system, which serves as a platform for malware to act upon.
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