1 Linux

2 Linux  What? An operating system devised by Linus Torvalds, based upon Unix It comes with a choice of desktop environments  Why? It's FREE! But a new PC with Linux costs the same as with Windows Applications are free! There is an equivalent Linux application for almost every Windows personal application  Where? On your PC - desktop or laptop

3 We'll look at: Logging in Screen layout Standard applications  Browser   Office  File Manager  Entertainment – music, videos Finding applications Removing applications Anti-virus software

4 Unix – a brief history developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie, Brian Kernighan, Douglas McIlroy, Michael Lesk and Joe Ossanna, to enable them to work on the first small computers. Until then all computers were huge and expensive; therefore they were shared by many users. A good operating system was: Multics At first Unix was given to universities, including its source code. This made it very popular with a generation of software engineers. Then Bell Labs started to charge for it! Linux was born So: Linux was born Mult – ics Un - ix

5 You name it – Linux runs on it! Supported platforms  Alpha, ARM, AVR32, Blackfin, C6x, ETRAX CRIS, FR-V, H8/300, Hexagon, Itanium, M32R, m68k, Microblaze, MIPS, MN103, OpenRISC, PA-RISC, PowerPC, s390, S+core, SuperH, SPARC, TILE64, Unicore32, x86, Xtensa IBM mainframe Your PC

6 So much to choose from! Some popular mainstream Linux distributions include Debian (and its derivatives such as Ubuntu), Fedora and openSUSE  Ubuntu - the Southern African philosophy of ubuntu ("humanity towards others") Other well-known Linux distributions include:  Arch Linux, Knoppix, BackTrack, Kubuntu (the KDE version of Ubuntu), Linux Mint, Xubuntu  Fedora, a community distribution by Red Hat; Red Hat Enterprise Linux, maintained and commercially supported by Red Hat.  CentOS, Oracle Enterprise Linux, Mandriva, PCLinuxOS, Gentoo, Slackware, SUSE Linux Enterprise,

7 Now we'll look at: Another desktop – KDE  “KDE” is a play on “Common Desktop Environment” Using the command line Running Windows applications – e.g. MS Money Installing Linux – on a PC already running Windows  Download the.ISO file from  Burn onto DVD (695Mb)

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9 Raspberry Pi

10 Raspberry Pi Pi computer board model B: 512Mb£35 Mini keyboard £9.32 Mouse£5.00 HDMI lead£1.20 Box £5.71 Power Supply: Micro USB, 5V £6.50 SD card£8.00 Total: approx £70

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14 Left: CPU; Right: RAM

15 Top: RAM; Bottom: CPU

16 General Purpose Input/Output GPIO