What is software made of?

Transcript

1. Powered by Rabbit 2.1.9 What is software made of? Heroku Ruby Association Yukihiro "Matz" Matsumoto @yukihiro_matz
2. Powered by Rabbit 2.1.9 　 RubyConf India
3. Powered by Rabbit 2.1.9 　 What is software made of?
4. Powered by Rabbit 2.1.9 　 What are little boys made of?
5. Powered by Rabbit 2.1.9 　 What are little boys made of? What are little boys made of? Snips and snails And puppy-dogs' tails That's what little boys are made of
6. Powered by Rabbit 2.1.9 　 What are little girls made of? What are little girls made of? Sugar and spice And all things nice That's what little girls are made of
7. Powered by Rabbit 2.1.9 　 What is software made of?
8. Powered by Rabbit 2.1.9 　 First Ingredient
9. Powered by Rabbit 2.1.9 　 Hardware
10. Powered by Rabbit 2.1.9 　 Hardware can exist without Software
11. Powered by Rabbit 2.1.9 　
12. Powered by Rabbit 2.1.9 　 No Software can exist without Hardware
13. Powered by Rabbit 2.1.9 　 Not 100% True
14. Powered by Rabbit 2.1.9 　 But Mostly True
15. Powered by Rabbit 2.1.9 　 My first computer
16. Powered by Rabbit 2.1.9 　
17. Powered by Rabbit 2.1.9 　 4bit CPU BASIC 1400 Steps 26 Variables
18. Powered by Rabbit 2.1.9 　 Poor Computer
19. Powered by Rabbit 2.1.9 　 It's 37 years ago
20. Powered by Rabbit 2.1.9 　 The Computer has been evolving so fast!
21. Powered by Rabbit 2.1.9 　 Faster CPU More memory More storage Wider bandwidth
22. Powered by Rabbit 2.1.9 　 The Computer I was using when I started Ruby (1993)
23. Powered by Rabbit 2.1.9 　 Engineering Work Station
24. Powered by Rabbit 2.1.9 　 SONY NEWS (NWS-831)
25. Powered by Rabbit 2.1.9 　 CPU: 68020 16MHz MEM: 8MB HDD: 156MB
26. Powered by Rabbit 2.1.9 　 Cost: 20,000USD
27. Powered by Rabbit 2.1.9 　 2016
28. Powered by Rabbit 2.1.9 　 Lenovo Thinkpad T460s
29. Powered by Rabbit 2.1.9 　 CPU: Core i7 (2.6GHz) MEM: 20GB HDD: 1TB (SSD)
30. Powered by Rabbit 2.1.9 　 Cost: 2,000USD
31. Powered by Rabbit 2.1.9 　 CPU: 325x
32. Powered by Rabbit 2.1.9 　 MEM: 2500x
33. Powered by Rabbit 2.1.9 　 HDD: 6410x
34. Powered by Rabbit 2.1.9 　 Now Computers are Fast!
35. Powered by Rabbit 2.1.9 　 The problem is..
36. Powered by Rabbit 2.1.9 　 Grand Illusion
37. Powered by Rabbit 2.1.9 　 1. Moore's Law
38. Powered by Rabbit 2.1.9 　 The number of transistors in LSI doubles every 18 months= 　
39. Powered by Rabbit 2.1.9 　
40. Powered by Rabbit 2.1.9 　 2. Cores
41. Powered by Rabbit 2.1.9 　 Multi Cores
42. Powered by Rabbit 2.1.9 　 The end of free lunch
43. Powered by Rabbit 2.1.9 　 Concurrency
44. Powered by Rabbit 2.1.9 　 Concurrency is hard
45. Powered by Rabbit 2.1.9 　 3. Caches
46. Powered by Rabbit 2.1.9 　 Variables≒Memory
47. Powered by Rabbit 2.1.9 　 Memory Model Registers Memory (Stack+Heap)
48. Powered by Rabbit 2.1.9 　 Real Memory Model Registers Caches Memory (Stack+Heap) Storage
49. Powered by Rabbit 2.1.9 　 Registers (1x) L1 Caches (4x) L2 Caches (10x) L3 Caches (40x) Memory (100x) Storage (20Mx)
50. Powered by Rabbit 2.1.9 　 Developers (sometimes) need to fight with illusion
51. Powered by Rabbit 2.1.9 　 Next Ingredient
52. Powered by Rabbit 2.1.9 　 Languages
53. Powered by Rabbit 2.1.9 　 Language = Grammar + Vocabulary
54. Powered by Rabbit 2.1.9 　 Language = Syntax + Library
55. Powered by Rabbit 2.1.9 　 How to express your idea
56. Powered by Rabbit 2.1.9 　 Communication between humans and machines
57. Powered by Rabbit 2.1.9 　 The tool to form your idea
58. Powered by Rabbit 2.1.9 　 The tool to boost your brain
59. Powered by Rabbit 2.1.9 　 Sapir-Whorf hypothesis
60. Powered by Rabbit 2.1.9 　 human thoughts are influenced by (spoken) languages
61. Powered by Rabbit 2.1.9 　 Languages influence human thought, more than you think
62. Powered by Rabbit 2.1.9 　 Languages matter
63. Powered by Rabbit 2.1.9 　 The evolution of programming languages
64. Powered by Rabbit 2.1.9 　 More abstract
65. Powered by Rabbit 2.1.9 　 More concise
66. Powered by Rabbit 2.1.9 　 Less code
67. Powered by Rabbit 2.1.9 　 Easier to write
68. Powered by Rabbit 2.1.9 　 Easier to read
69. Powered by Rabbit 2.1.9 　 More productive
70. Powered by Rabbit 2.1.9 　 Abstraction
71. Powered by Rabbit 2.1.9 　 Hide internal detail
72. Powered by Rabbit 2.1.9 　 Illusion
73. Powered by Rabbit 2.1.9 　 Languages create illusion
74. Powered by Rabbit 2.1.9 　 Developers (sometimes) need to play with illusion
75. Powered by Rabbit 2.1.9 　 Illusion that make you productive
76. Powered by Rabbit 2.1.9 　 Illusion that make you consume less brain power
77. Powered by Rabbit 2.1.9 　 Productivity matters
78. Powered by Rabbit 2.1.9 　 Productivity solves most of problems
79. Powered by Rabbit 2.1.9 　 Productivity make work work less
80. Powered by Rabbit 2.1.9 　 Productivity make work earn more
81. Powered by Rabbit 2.1.9 　 Productivity bring you success
82. Powered by Rabbit 2.1.9 　 Last Ingredient
83. Powered by Rabbit 2.1.9 　 Developers Community
84. Powered by Rabbit 2.1.9 　 Programmers
85. Powered by Rabbit 2.1.9 　 People
86. Powered by Rabbit 2.1.9 　 Programming is a human thing
87. Powered by Rabbit 2.1.9 　 Machines don't program
88. Powered by Rabbit 2.1.9 　 At least yet
89. Powered by Rabbit 2.1.9 　 We are not machines
90. Powered by Rabbit 2.1.9 　 Difference?
91. Powered by Rabbit 2.1.9 　 Heart
92. Powered by Rabbit 2.1.9 　 Desire
93. Powered by Rabbit 2.1.9 　 Machines do not desire anything
94. Powered by Rabbit 2.1.9 　 We program because we want something
95. Powered by Rabbit 2.1.9 　 Passion
96. Powered by Rabbit 2.1.9 　 Machines do not have passion
97. Powered by Rabbit 2.1.9 　 We keep programming because we have passion
98. Powered by Rabbit 2.1.9 　 20+ years of Ruby development
99. Powered by Rabbit 2.1.9 　 Anger
100. Powered by Rabbit 2.1.9 　 We (sometimes) program because we get angry at something
101. Powered by Rabbit 2.1.9 　 3 Virtues of Programmers Laziness Impatient Hubris
102. Powered by Rabbit 2.1.9 　 Weakness
103. Powered by Rabbit 2.1.9 　 Weak memory
104. Powered by Rabbit 2.1.9 　 Weak will
105. Powered by Rabbit 2.1.9 　 Weak mind
106. Powered by Rabbit 2.1.9 　 Weakness is the reason we need illusion
107. Powered by Rabbit 2.1.9 　 Community
108. Powered by Rabbit 2.1.9 　 Communication
109. Powered by Rabbit 2.1.9 　 Collaboration
110. Powered by Rabbit 2.1.9 　 Motivation
111. Powered by Rabbit 2.1.9 　 They made Ruby possible
112. Powered by Rabbit 2.1.9 　 They made other great software
113. Powered by Rabbit 2.1.9 　 They will make your software
114. Powered by Rabbit 2.1.9 　 Summary
115. Powered by Rabbit 2.1.9 　 What is software made of? Hardware and languages And developers community That's what is software made of?
116. Powered by Rabbit 2.1.9 　 Hardware
117. Powered by Rabbit 2.1.9 　 Languages
118. Powered by Rabbit 2.1.9 　 Community
119. Powered by Rabbit 2.1.9 　 Happy Hacking!
120. Powered by Rabbit 2.1.9 　 A Few More Things
121. Powered by Rabbit 2.1.9 　 Ruby3
122. Powered by Rabbit 2.1.9 　 Concurrency Performance Static Analysis
123. Powered by Rabbit 2.1.9 　 mruby
124. Powered by Rabbit 2.1.9 　 Streem
125. Powered by Rabbit 2.1.9 　 Happy Hacking!