Linus Torvalds Linux Kernel 1991-2026 (差別化: 既存Linux系統樹OS Distroと異なり Kernel開発者個人軸)。Linus Benedict Torvalds (1969生・Helsinki Finland・Helsinki University CS)・MINIX (Andrew Tanenbaum教育用OS 1987) を不満→自作OS開発開始 1991/4・1991/8/25 comp.os.minix 投稿「I'm doing a (free) operating system (just a hobby, won't be big and professional like gnu)」・Linux 0.01 1991/9/17 (10,239 lines・PC/AT 386・MINIX File System・¥0 GPL)+0.12 1992/1 +1.0 1994/3/14・Tux Penguin Mascot 1996・Git 2005/4 BitKeeper撤退で開発 (10日でCommit第一弾・現代SW Tooling最重要)・Linux Foundation 2007 (¥¥¥¥¥¥¥¥/Year・Brian Behlendorf+執行責任者)・Subsurface Diving Software (Open Source Hobby Project)・Hi family Helsinki→Portland OR (1997)+Dunthorpe・「Talk is cheap. Show me the code.」名言・¥0 全Free GPL・OSDL→Linux Foundation・2026年Kernel 6.13+CC維持(Linus Torvalds直接Linux Maintain中・Git Repository数億Commit主流。