CompTIA ITF+ Practice Test 2025 - Free CompTIA ITF+ Practice Questions and Study Guide

All of the options listed—Linux Mint, Microsoft Windows, and Mac OS X—are indeed common operating systems used on personal computers.

Linux Mint is a well-known distribution of the Linux operating system that is favored for its user-friendly interface and strong community support. It is particularly popular among users transitioning from Windows due to its similarity in appearance and functionality.

Microsoft Windows is one of the most widely used operating systems in the world, found on millions of computers across various sectors, including business, education, and personal use. Its extensive software compatibility and support make it a household name.

Mac OS X, developed by Apple, is the operating system that powers Mac computers. It is recognized for its sleek design and robust functionality, attracting users in creative fields and those looking for a seamless integration with other Apple products.

Since all three operating systems have significant user bases and characteristics suited for different types of users and uses, the correct answer includes all of them, highlighting that they are all common operating systems.