Where did the name GNU/Linux come from? You've certainly heard
of Linux before, and you may have heard of the GNU Project. You
may not have heard the name GNU/Linux, although you're probably
familiar with the system it refers to. Linux is named after
Linus Torvalds, the creator and original author of the kernel
that runs a GNU/Linux system. The kernel is the program that
performs the most basic functions of an operating system: It
controls and interfaces with the computer's hardware, handles
allocation of memory and other resources, allows multiple
programs to run at the same time, manages the file system, and
so on. The kernel by itself doesn't provide features that are
useful to users. It can't even provide a simple prompt for users
to enter basic commands. It provides no way for users to manage
or edit files, communicate with other computers, or write other
programs. These tasks require the use of a wide array of other
programs, including command shells, file utilities, editors, and
compilers. Many of thes