History of the computer By: Dylan Richardson

Timeline 1970-Xerox opens Palo Alto research

center. 1971-RCA sells its computer division . 1972-Hewlett Packard announces its hp-

30. 1973-The Micril was invented. 1974-Xeroxes palo alto research center

designed the Alto. 1975-Xerox closes its computer division.

Timeline 1985-The Amiga 1000 is released. 1995-Java is introduced. 2001-Xbox is released. 2002-Over 1 billion pc’s have been

sold. 2005-Ebay gets Skype. 2006-Skype has over 100,000 users.

Diagram

CPU CPU stands for central processing unit.

It is almost like the brain of the computer.

Video card A video card is a expansion card that

allow the computer to send graphical information to a video display like the monitor.

RAM RAM stands for random access

memory. You can access any memory cell directly if you know the row and column it is on.

Hard drive It is a efficient computer memory

device.

CD-ROM CD-ROM stands for compact disk read

only memory.

USB Port USB stands for universal serial bus

connector. It allows you to plug in mice, keyboards, and printers.

PCI Card PCI stands for peripheral component

interconnect. PCI’s include stuff like network cards and sound cards.

Motherboard It allows all the parts of the computer

to recieve power and communicate with each other.

Power source The power source for computers is

electric.

Sources Howstuffworks.com Computerhistory.org