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Across 4. a small picture on a computer screen that represents a program or function 6. messages that are sent electronically from one computer to another 7. the part of a computer system that performs the computer's main functions and controls the other parts of the system 9. the ability of a device to show an image clearly and with a lot of detail 10. any one of the very small dots that together form the picture on a television screen, computer monitor

Down 1. a facility allowing computers, smartphones, or other devices to connect to the Internet or communicate with one another wirelessly within a particular area. 2. a system that connects computers throughout the world 3. a computer program that is used to find and look at information on the Internet 5. the set of keys that are used for a computer or typewriter 8. a small device that is connected to a computer and that you move with your hand to control the movement of a pointer on the computer screen