The computer's master control program. When a computer is turned on, a small "boot program" loads the operating system. Although additional system modules may be loaded as needed, the main part, known ...

Whether it's a desktop or laptop computer, a smartphone or a video game system, every modern computer needs an operating system. That's the core software on the computer that sits between application ...

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 ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...