Помогите поправить оплошности, если они имеются.   Computer consists of a monitor

Помогите исправить оплошности, если они имеются.

Computer consists of a monitor , CPU, keyboard, mouse , speakers or headphones . Computers are used everywhere: in education, for personal use, business and science. In education, the computer can help find the information or help in solving problems . In business computer used to calculate the data and communications. In science , computers are used for data processing or calculation formulas. With the computer , you can use the Internet. You can watch movies, play games and communicate with people who live in other countries . You can also buy different things in the Internet shop or sell something.
Computer is very important in our lives. I think humanity мейд a huge step to the future when created this machine.