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LinuxLinux

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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 applicationWhere?•On your PC - desktop or laptop

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We'll look at: Logging in Screen layout Standard applications

Browser Email Office File Manager Entertainment – music, videos

Finding applications Removing applications Anti-virus software

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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!

So: Linux was born Linux was born

Mult – ics Mult – ics Un - ixUn - ix

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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 IBM mainframemainframe

Your PC

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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,

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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

http://www.ubuntu.com/download/desktop Burn onto DVD (695Mb)

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Raspberry Pi

http://www.raspberrypi.org

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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 £70Total: approx £70

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Left: CPU; Right: RAM

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Top: RAM; Bottom: CPU

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General Purpose Input/OutputGPIO