L1 Topic: What is computer? 

A computer is a electronic device  or machine that process information. The first modern computer was invented by Williams Thomson in 1872.The device was used to  solve different equations and more mathematical problems. Actually there are many different types and brand of computers, like Apples, Dell, HP, Acer, Toshiba, Samsung,Sony, and more brands. 355.2 millions of computers were sold in 2011, 95.4 were sold in the United States. HP was the company that more computers sold in 2009. Been Samsung the eight company in this year.