1. 21st Century
1.1. 2001
1.1.1. macOS
1.1.1.1. Apple
1.2. 2003
1.2.1. Athlon 64
1.2.1.1. Advanced Micro Devices (AMD)
1.3. 2005
1.3.1. Youtube
1.3.1.1. Steve Chen, Chad Hurley, and Jawed Karim
1.4. 2009
1.4.1. Windows 7
1.4.1.1. Microsoft
1.5. 2015
1.5.1. Windows 10
1.5.1.1. Microsoft
2. 19th Century
2.1. 1801
2.1.1. The Jaquard Machine
2.1.1.1. Joseph Marie Jacquard
2.2. 1821
2.2.1. Difference & Analytical Engine
2.2.1.1. Charles Babbage
2.3. 1848
2.3.1. First Computer Program
2.3.1.1. Ada Lovelace
2.4. 1853
2.4.1. First Printing Computer
2.4.1.1. George Schutz
2.5. 1865
2.5.1. First Commercial Typewriter (Hansen Writing Ball)
2.5.1.1. Rasmus Malling-Hansen
3. Early 20th Century
3.1. 1931
3.1.1. Differential Analyzer
3.1.1.1. Vannevar Bush
3.2. 1936
3.2.1. Turing Machine
3.2.1.1. Alan Turing
3.3. 1941
3.3.1. Z3 Machine
3.3.1.1. Konrad Zuse
3.4. 1941
3.4.1. Atanasoff-berry Computer
3.4.1.1. Atanasoff & Clifford berry
3.5. 1947
3.5.1. Transistor
3.5.1.1. William Shockley, John Bardeen and Walter Brattain
4. Late 2oth Century
4.1. 1953
4.1.1. First Language Computer (COBOL)
4.1.1.1. Grace Hopper
4.2. 1958
4.2.1. Computer Chip
4.2.1.1. Jack Kilby & Robert Noyce
4.3. 1971
4.3.1. Floppy Disk
4.3.1.1. IBM Engineers led by Alan Shugart
4.4. 1976
4.4.1. Apple Computer (Apple 1)
4.4.1.1. Steve Jobs & Steve Wozniak
4.5. 1996
4.5.1. Google Search Engine
4.5.1.1. Sergey Brin & Larry Page