Linux is a tried-and-true, open-source operating system released in 1991 for computers, but its use has expanded to underpin systems for cars, phones, web servers and, more recently, networking gear.

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 ...

These issues crop up in rapidly growing businesses. Staff members may have been over-promoted or be working in roles where they don’t perform at their best. If there aren’t clearly documented methods, ...