1. A Quick UNIX Primer MIS 3321 Fall, 2014 University of Central Arkansas

2. UNIX and Linux Review: UNIX developed in ‘69 @ AT&T Bell Labs Written in the “C” programming language Good for network servers, web servers Is platform independent and portable  can run on cell phones to supercomputers “open source” codeopen source All this is good in theory…

3. More UNIX/Linux Review In practice: many proprietary versions Sun Microsystems: Solaris OS IBM’s version: AIX HP’s version: HPUX Silicon Graphics (SGI) version: IRIX Plus you’ve got LINUX…more later Bottom line: you need some gearheads, or techie- geeks, to run UNIX or Linux shops  very cryptic and picky…like DOS

4. Now, about Linux… Invented by Linus Torvolds in 1991 while at Helsinki University (at age 22!) Is “freeware” or “open source”  1000’s of developers  beta-testing, fixing bugs, tweaking Opposite of Windows 8 / Mac OS / i OS Mascot is the Penguin Drives $15 Billion in annual sales of hardware, software and services

5. More Linux Tidbits Novell – 2 nd biggest Linux distributor (29%) Red Hat – 61% market share GUIRed Hat market share HP - #1 seller of UNIX servers (30%) SCO Unix – owns core Unix OS (UnXis) IBM has spent $BBB$ embracing Linux  alternative to Windows monopoly & Sun  claims 15,000 Linux deployments Amazon.com, Wall Street, Google big users Hollywood special effects shops Cell phones, TiVo recorders…what next?