Joey lai

History of computers

1. A computer is an electronic machine that receives data, understands it according to instructions, and provides the answer. Stonehenge is considered a computer cause it can store info about the date
2. the abacus is a counting machine from china near 1000 bc to 500 bc
3. Blaise Pascal did it in 1642
4. babbage is considered to be the father of computers and he used the punched card’s holes to determine data and information
5. ada Augusta king
6. Leibniz discovered the binary system and calculus and invented the stepped reckoner a machine that can count divide multiply and subtract.
7. Herman hollerith started the ibm (International Business Machines)
8. the mark one computer came out in the 1930’s and has 52’ long and weighed 50 tons
9. grace hopper was the grandmother of computers and the first computer bug was a moth
10. Electronic Numerical Integration and Calculator is ENIAC. It was invented near 1946 and was 1800 square feet it can calculate the trajectory of shells
11. the transistor is a magnetic tape that is more reliable and is much faster than the vacuum tube
12. formula translator common business oriented language
13. it was the integrated circuits (chips)
14. the microprocessors is an entire cpu on 1 chip and can store 256 byte of memory
15. the altair is the first micro computer and you need to program it by flipping switches in the front
16. pc-dos was the first and ibm made it. It was borrowed by Microsoft afterwards
17. Steve Jobs and Steve Wozniac started apple and it was easier to use thus giving it a better advantage for ordinary people
18. it started in Zurich , Switzerland and was started to link together for browsing
19. computers will become faster and become easier to use in the future