1. History of Computers

2. 80 AD 3000 BC The abacus is invented in Babylonia.
The Antikythera Device, a bronze mechanical lunar month calculator, is constructed in Greece.
The abacus is invented in Babylonia.

3. 1666
1679
Samuel Morland built a mechanical calculator that will add and subtract.
Leibniz introduces binary mathematics. As with decimal, octal, and hexadecimal numbers, are organized into columns.

4. 1829
1850
George Boole develops Boolean Logic which will one day become the basis for computer logic.
The first typewriter is patented by William Austin Burt. It's slow and clumsy, but it's the first writing machine

5. 1939
1956
Howard Aiken begins work on the Harvard Mark 1 with funding from IBM
IBM builds the first hard drive. It contains fifty 24 inch disks, has a capacity of 5 MB and costs over US$1,000,000

6. 1983
1971
The first home computer with a GUI, graphical user interface.
ALAN SHUGART AND IBM CREATED THE FLOPPY DISK. Nicknamed the "Floppy" for its flexibility.

7. 1985
1992
Microsoft begins the friendly war with Apple.
There are now about 1000 known computer viruses, up from 5 in 1988

8. Apple releases the iMac
1998
2006
Skype announces that it has over a 100 million registered users.
Apple releases the iMac

9. 2010
Apple then created the ipad which is a hand held computer, you can search the web, books, play games and so much more.