Before Windows was created, the most common operating system that ran on IBM PC compatibles was DOS. DOS stands for Disk Operating System and was what you would use if you had started your computer ...

Presents an introduction to major operating systems and their components. Topics include processes, concurrency and synchronization, deadlock, processor allocation, memory management, I/O devices and ...

There’s a large selection of free and open source (FOSS) operating systems available these days, and choosing the right one for any given circumstance can be quite a challenge. This article is ...

With cybersecurity threats on the rise and data breaches occurring almost every week, it’s natural to ask: What is the most secure operating system (OS)? Unfortunately, the answer isn’t ...

Embedded system developers have a wide range of operating systems available to them today. Of course, the most straightforward operating system is to have no operating system! However, many systems ...

Modern operating systems are all far more secure than their historic counterparts, but which operating system is the safest? That somewhat depends on how you use it — no operating system is “safe” if ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Doretha Clemons, Ph.D., MBA, PMP, has been a ...