The kernel mediates between the hardware of the computer, and the processes or software that the computer runs. To understand on a high-level the controversy surrounding what "Linux" refers to, it is important to distinguish between a kernel and an operating system.Ī kernel is the core of any operating system. The origins of Linux involved a number of players as well disputes about attribution and naming. Additionally, Torvalds' implementation of Linux departed from Tanenbaum's Minix in that the Linux kernel was a monolithic kernel rather than a microkernel. The Linux kernel differed from the Bell Labs' Unix kernel since the Linux kernel started the Bourne-Again Shell ( bash) first rather than the init program. Rule of Simplicity: Design for simplicity add complexity only where you must." ĭue to Torvalds' frustration with Minix's terminal emulation, he started the project that would become Linux as a terminal emulator. Raymond, abstracts 17 core principles exhibited by the Unix operating system including the "Rule of Modularity: Write simple parts connect by clean interfaces. In his book, Torvalds extols the beauty of Unix's cleanliness and simplicity, and the "small-is-beautiful philosophy." In his 2003 book, The Art of UNIX Programming, Eric S. Unix was developed by AT&T's Bell Labs in the late 1960s, based on certain design principals, and by the early 1990s, Unix was the most used operating system for supercomputers and servers. In 1991, the PC Torvalds purchased ran on a Minix operating system, a variant of the Unix operating system created by Andrew Tanenbaum. Once in University, Torvalds switched over from the QL to the PC, which by 1990 was cheaper than other options and due to mass-market production, was more standardized. Torvalds became dissatisfied with parts of the Sinclair QL, especially the read-only operating system-he could not change or customize it. When Torvalds was a high school student, he saved up money to purchase a Sinclair QL computer in 1987. In his autobiography, Just for Fun: The Story of an Accidental Revolutionary, Linus Torvalds recounts how he became interested in computers and operating systems in particular. Torvalds released the first version of his operating system-built with his original Linux kernel-version 0.01 on Septem, and Linux has continued on to power every aspect of online life since then. excerpt from an email sent by Linus Torvalds ĭespite Torvalds' message, Linux would become ubiquitous in the world of computer programming. Hello everybody out there using minix-I'm doing a (free) operating system (just a hobby, won't be big and professional like gnu) for 386 (486) AT clones. Subject: small poll for my new operating system
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