Open Source is one of the core tenets of the PHP language and the community. PHP would not be here if it was not for some of the ideals around software development that occurred in the 50's, 60's, and 70's. How did the open source movement start, and why is PHP one of the few languages that still hold true to those early days of programming? Let's talk about where open source started, and find out how we got here.

1. A Brief History of Open
Source
Chris Tankersley
@dragonmantank
Pacific Northwest PHP, September 2016
Pacific Northwest PHP, September 2016 1

2. Pacific Northwest PHP, September 2016 2

3. Pacific Northwest PHP, September 2016 3
1.79 MHz 8-bit Processor
128K RAM
640x192 max resolution
64 color palette
RS-232 Serial Port
Cartridge Bay
2 Joystick Ports
Disk Extended Color Basic 2.1

4. Pacific Northwest PHP, September 2016 4
520 Mhz Apple S1
512MB RAM
390x312 resolution (~303 ppi density)
16 million colors
WatchOS

5. Pacific Northwest PHP, September 2016 5
1.79 MHz 8-bit Processor
128K RAM
640x192 max resolution
64 color palette
RS-232 Serial Port
Cartridge Bay
2 Joystick Ports
Disk Extended Color Basic 2.1

6. Pacific Northwest PHP, September 2016 6

7. Pacific Northwest PHP, September 2016 7

8. Pacific Northwest PHP, September 2016 8

9. Pacific Northwest PHP, September 2016 9

10. Pacific Northwest PHP, September 2016 10

11. Pacific Northwest PHP, September 2016 11
“All information should be free”

12. The Hacker Ethics
• Access to computers – and anything which might teach you
something about the way the world works – should be unlimited and
total. Always yield to the Hands-On Imperative!
• All information should be free
• Mistrust Authority – promote decentralization
• Hackers should be judged by their hacking, not criteria such as
degrees, age, race, sex, or position
• You can create art and beauty on a computer
• Computers can change your life for the better
Pacific Northwest PHP, September 2016 12

13. Pacific Northwest PHP, September 2016 13

14. Pacific Northwest PHP, September 2016 14

15. Pacific Northwest PHP, September 2016 15

16. Pacific Northwest PHP, September 2016 16
“All information should be free”

17. Pacific Northwest PHP, September 2016 17

18. Pacific Northwest PHP, September 2016 18

19. Pacific Northwest PHP, September 2016 19

20. Pacific Northwest PHP, September 2016 20

21. Pacific Northwest PHP, September 2016 21
“I consider that the golden rule requires that if I like a
program I must share it with other people who like it.
Software sellers want to divide the users and conquer
them, making each user agree not to share with others. I
refuse to break solidarity with other users in this way.
I cannot in good conscience sign a nondisclosure
agreement or a software license agreement. For years I
worked within the Artificial Intelligence Lab to resist such
tendencies and other inhospitalities, but eventually they
had gone too far:
I could not remain in an institution where such things are
done for me against my will.”

22. Pacific Northwest PHP, September 2016 22

23. Pacific Northwest PHP, September 2016 23

24. Pacific Northwest PHP, September 2016 24

25. Pacific Northwest PHP, September 2016 25

26. Pacific Northwest PHP, September 2016 26

27. The Hacker Ethics
• Access to computers – and anything which might teach you
something about the way the world works – should be unlimited and
total. Always yield to the Hands-On Imperative!
• All information should be free
• Mistrust Authority – promote decentralization
• Hackers should be judged by their hacking, not criteria such as
degrees, age, race, sex, or position
• You can create art and beauty on a computer
• Computers can change your life for the better
Pacific Northwest PHP, September 2016 27

28. Thank You!
• https://github.com/dragonmantank
• Author of “Docker for Developers”
• https://leanpub.com/dockerfordevs
• http://ctankersley.com
• chris@ctankersley.com
• @dragonmantank
Pacific Northwest PHP, September 2016 28

29. Credits
• https://www.flickr.com/photos/david_s_carter/2652345453/in/albu
m-72157607224927467/
• https://ia600702.us.archive.org/23/items/1983-08-compute-
magazine/Compute_Issue_039_1983_Aug.pdf
• http://www.oldcarmanualproject.com/brochures/Chev/1956/brochur
e/images/1956%20Chevrolet%20(01)_jpg.jpg
• By Swtpc6800 en:User:Swtpc6800 Michael Holley - Transfered from
en.wikipedia, Public Domain,
https://commons.wikimedia.org/w/index.php?curid=3185062
• https://www.flickr.com/photos/hades2k/7001927337
Pacific Northwest PHP, September 2016 29