Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.

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 Check 

Across: 3. With the help of this device, we get connected to the Internet. 4. The main computer in a network. 6. The system via which we send electronic letters. 7. One of the most influental and famous companies in software developing and computer technologies' field. 8. With the help of this device we can type words.

Down: 1. A common name of the World Wide Web. 2. With the help of this system we can communicate and have online discussions. 5. There is also a small computer device which looks like as a small animal.