Ok so one day I came across this thing where it just said press these keys on my computer so I did then all of a sudden everything got exited out. What keys do you press that exit everything out?
Press Alt-F4 to quickly close programs.
Gutenberg's printing press allowed for multiple copies of books to be printed in a quick and organized fassion. Before the printing press, the stamps had to be hand dipped in ink, and page by page the book had to be manualy printed by a two book binders. With the printing press you could now place a large sheet of paper, and print the entire book on it, then later, cut the sheets, bind it, and sell it. Gutenberg's printing press marked the beginning of the modern book. It allowed for thousands of copies of the same book to be made and distributed quickly and neatly. It is considered by many historians to be one of the most important inventions of that century.
