Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Open Source Software Ecosystem & Stack

2,083 views

Published on

This is a public presentation I gave at SIM University last year around this time. It is about using Open Source Software in every corner of the computing sector - desktop, workstation, server, appliances. I list the important pieces of software as well.

Published in: Technology
  • Be the first to comment

Open Source Software Ecosystem & Stack

  1. 1. S. P. T. Krishnan Institute for Infocomm Research, donorweb
  2. 2. Contents • About me  • Open Source Software (OSS) – Desktop – Workstation – Server / Infrastructure – High Performance Computing (HPC) • Case study – Donorweb.org 10-May-08 UNISIM OSOM SEMINAR 1 2
  3. 3. About me • Senior Research Engineer – @ Cryptography and Security, I2R • RHCE of the year 2007, APAC • PSSA 2004 nominee • 10+ years experience – Windows kernel hacking (MS thesis) – Open source ecosystem (I,D,E) experience • PhD (part-time), High Performance Computing 10-May-08 UNISIM OSOM SEMINAR 1 3
  4. 4. RHCE, PSSA 10-May-08 UNISIM OSOM SEMINAR 1 4
  5. 5. Disclaimers • Personal view – Does not represent I2R, or Singapore Red Cross or donorweb – Based on personal experience • Tip of the Ice berg of OSS – Most useful software – Least resistance path 10-May-08 UNISIM OSOM SEMINAR 1 5
  6. 6. END (NON-TECHNICAL) USER, DESKTOP 10-May-08 UNISIM OSOM SEMINAR 1 7
  7. 7. Common misconceptions • I have always used Windows – Why should use Linux ? • I have only coded in Visual Basic ! – Why learn another language ? Is Linux tough to learn and use ? • Don’t I get a GUI ? • What is a shell ? • I don’t know where to start • Do I have to remove Windows to use Linux ? • 10-May-08 UNISIM OSOM SEMINAR 1 8
  8. 8. Desktop 1. Email 2. Surf 3. Edit 4. Office 5. Chat 6. Image 7. Music 8. Video 10-May-08 UNISIM OSOM SEMINAR 1 9
  9. 9. Software developer WORKSTATION 10-May-08 UNISIM OSOM SEMINAR 1 10
  10. 10. Workstation - 1 • Open source language programming – What is wrong with VB/VC++ programming ? • Why do I need to program for multiple OS ? – Platform specific languages limit market size – OSX is rising, Linux is default OS in many products – Smart phones (Nokia sold 10M N95s in 1 year) – New device form factors (internet tables) – Open Standards 10-May-08 UNISIM OSOM SEMINAR 1 11
  11. 11. Workstation - 2 1. Code 2. Compile Virtualization 3. Execute 4. Debug 5. Deploy 6. Document 7. Store 10-May-08 UNISIM OSOM SEMINAR 1 12
  12. 12. Workstation - 3 • Complete GNU/Linux OS – Minus raw device access • Servers – All software services (Web, Email, FTP etc) – Router  • Share with Friends (In real time) • Dual-boot Linux – Virtualized Windows – Minor driver issues (still OK) 10-May-08 UNISIM OSOM SEMINAR 1 13
  13. 13. Programming languages – w4 • Windows developer – VB, VC++, C#, .NET – Platform specific (-ve) C, C++, JAVA • Perl • Python • PHP • Ruby • 10-May-08 UNISIM OSOM SEMINAR 1 14
  14. 14. Frameworks, IDE – w5 • .NET (Mono) • Perl (Catalyst, Maypole • PHP (CakePHP, Code igniter, Akelos) • Python (Django) • Ruby (Ruby on Rails) • IDE (eclipse, komodo) • GUI (GNOME,KDE) 10-May-08 UNISIM OSOM SEMINAR 1 15
  15. 15. THE COMPUTING SPECTRUM 10-May-08 UNISIM OSOM SEMINAR 1 16
  16. 16. OSS in INFRASTRUCTURE 10-May-08 UNISIM OSOM SEMINAR 1 18
  17. 17. *admin – 1 • OS • DB engine • Email server • Web server • App server • Blog/News • Forums 10-May-08 UNISIM OSOM SEMINAR 1 19
  18. 18. *admin - 2 CMS • CRM • ERP • UTM • UC • – VOIP – CHAT – EPABX • Directory • Backup 10-May-08 UNISIM OSOM SEMINAR 1 20
  19. 19. *admin - 3 http://www.voip-info.org/wiki-Open+Source+VOIP+Software 10-May-08 UNISIM OSOM SEMINAR 1 21
  20. 20. CASE STUDY DONORWEB 10-May-08 UNISIM OSOM SEMINAR 1 22
  21. 21. Donorweb – 1 Official Singapore Blood Stock Indicator • Official Bloodmobiles list • Emergency SMS Gateway • R3C (International project) • Blog, Forums, Groups, Pledge, Quiz • Awards & Recognitions • – E-Innovator award from Singapore Government – PSSA 2004 nomination – Sponsorships 10-May-08 UNISIM OSOM SEMINAR 1 23
  22. 22. Donorweb – II, CORE 10-May-08 UNISIM OSOM SEMINAR 1 24
  23. 23. Donorweb – III, Software Stack 7 6 5 4 Cost (S¢) 3 Capacity (MB) 2 1 0 10-May-08 2 UNISIM OSOM SEMINAR 1 25 1 3 4
  24. 24. 10-May-08 UNISIM OSOM SEMINAR 1 26
  25. 25. 10-May-08 UNISIM OSOM SEMINAR 1 27

×