Computer History By Poppy Milano The first pc

Computer History By: Poppy Milano

The first pc and laptop • Konrad zuse made the first programmable computer 1936 to 1938 in his parents living room. • Adam Osborne made the first laptop. The company name was Osborne computers. The laptop cost $1795.

5 First Companies • IBM-Thomas J Watson • Hewlett-Packard-Bill Hewlett and Dave Packard • Toshiba-Hisashige Tanaka • Apple-Steve Wozniak • Dell-Michael Dell

Important times in History - 1938 Konrad Zuse: Konrad Zuse creates the Z 1 Computer a binary digital computer using punch tape 1939 George Stibitz: George Stibitz develops the Complex Number Calculator a foundation for digital computers. Hewlett Packard: William Hewlett and David Packard start Hewlett Packard John Vincent Atanasoff and Clifford Berry: John Vincent Atanasoff and Clifford Berry develop the ABC (Atanasoft-Berry Computer) prototype - 1943 Enigma: Adolf Hitler uses the Enigma encryption machine Colossus: Alan Turing develops the code-breaking machine Colossus - 1944 Howard Aiken & Grace Hopper: Howard Aiken and Grace Hopper designed the MARK series of computers at Harvard University 1945 ENIAC: John Presper Eckert & John W. Mauchly develop the ENIAC ( Electronic Numerical Integrator and Computer) Computer Bug: The term computer ‘bug’ as computer bug was first used by Grace Hopper - 1946 F. C. Williams: F. C. Williams develops his cathode-ray tube (CRT) storing device the forerunner to random-access memory (RAM)

Viruses, Worms and Trojan Horses • A computer virus is a software program that spreads from one computer to another computer and interferes with the program. • A computer worm is a self-replicating computer program • Many people thinking that the Trojan Horse is software or files from an actual source are tricked. They open it and have downloaded it.

Definitions • • • Byte-basic unit Kilobyte- 1, 000 bytes Megabyte- 1, 000 kilobytes Gigabyte- 1, 000 megabytes Terabyte- 1, 000 gigabytes Pebibytes-1, 000 terabytes Exbibyte- 1, 000 pebibytes Zebibyte-1, 000 exibytes Yobibyte- 1, 000 zebibytes RAM- (Random Access Memory) things can be transferred to the RAM where they are easily accessible.

• • • First pc and laptop. com First computer companies. com Important computer history. com Viruses. com Computer worms. com Computer definitions. com

Computers in the future I think computers are going to be a lot more advanced. I believe a lot of people are going to have apple computers. I also thing a lot of them will be touch screen.