1. Action Ka-men Group History of Computer 1942-ABC Machine

2. Introduction ABC – Atanasoff-Berry Computer ABC – Atanasoff-Berry Computer Developed by Professor John Vincent Atanasoff and graduate student Clifford E. Berry from Iowa State University. Developed by Professor John Vincent Atanasoff and graduate student Clifford E. Berry from Iowa State University.

3. John Vincent Atanasoff (1903 - 1995) John Vincent Atanasoff (1903-1995) John Vincent Atanasoff (1903-1995) Born few miles of west Hamilton Born few miles of west Hamilton His father was a Bulgarian Immigrant. His father was a Bulgarian Immigrant. His mother is mathematics school teachers His mother is mathematics school teachers Graduate from University of Florida in 1925 with Bachelor of Science degree in electrical engineering. Graduate from University of Florida in 1925 with Bachelor of Science degree in electrical engineering. During war, Atanasoff had involved in a test program for underwater mines. During war, Atanasoff had involved in a test program for underwater mines. Atanasoff was awarded the National Medal of Technology at the White House by President George Bush on 13 November 1990 Atanasoff was awarded the National Medal of Technology at the White House by President George Bush on 13 November 1990

4. Clifford E. Berry (1918 - 1963) Born in Gladbrook, Iowa on 19 April 1918 Born in Gladbrook, Iowa on 19 April 1918 His intelligent being seen by his teacher and continue to rise when he entered Iowa State University His intelligent being seen by his teacher and continue to rise when he entered Iowa State University His father owned an electrical appliance and repair store in Iowa His father owned an electrical appliance and repair store in Iowa Professor Harold Anderson impressed by his brilliance and recommended him to Atanasoff. Professor Harold Anderson impressed by his brilliance and recommended him to Atanasoff. He had issued: He had issued: 19 patents in the area of mass spectrometry 19 patents in the area of mass spectrometry 11 patents in various areas of vacuum and electronics 11 patents in various areas of vacuum and electronics 13 patents pending. 13 patents pending.

5. Atanasoff Berry Computer 1 st digital computer 1 st digital computer Used binary arithmetic and boolean Algebra using vacuum tube Used binary arithmetic and boolean Algebra using vacuum tube Can calculate much faster than the input device Can calculate much faster than the input device Used many of the principal of all future computer Used many of the principal of all future computer

6. Components Memory Memory Are recharged like today's dynamic RAM Are recharged like today's dynamic RAM Input device Input device Used standard IBM card reader Used standard IBM card reader Output device Output device Used odometer like device Used odometer like device Storage Storage Used a base 2 punch card that could quickly store 1500 bits. Used a base 2 punch card that could quickly store 1500 bits.

7. Clifford E. Berry with the ABC (1942)

8. Drum

9. Reader

11. Issue John Mauchly, co-builder of ENIAC, visit Atanasoff in 1941 John Mauchly, co-builder of ENIAC, visit Atanasoff in 1941 He had a look at the new machine developed by Atanasoff He had a look at the new machine developed by Atanasoff Eckert and Mauchly then develop the ENIAC machine and they gained the international attention Eckert and Mauchly then develop the ENIAC machine and they gained the international attention ABC machine is recognized a year later. ABC machine is recognized a year later.

12. In 1973, court overturned an ENIAC patent-basic idea that came from Atanasoff In 1973, court overturned an ENIAC patent-basic idea that came from Atanasoff They came to a conclusion that based on Mauchly experience it is a little bit confusing how he can have that kind of idea. They came to a conclusion that based on Mauchly experience it is a little bit confusing how he can have that kind of idea. ABC was dismantled in 1948. ABC was dismantled in 1948.

13. Thank You From Action Ka-men Team