Input Devices

Across

• 1. Enables the user to execute commands or issue instructions to the computer by controlling a pointer on the screen (5)
• 4. Forms would be fed into a machine that would look for black marks (3)
• 5. When you place your finger on or near the screen it disrupts this field and draws current (5, 9, 6)
• 6. It relies on springed keys being pressed down to complete an electrical circuit. This circuit then transmits a binary signal (commonly using ASCII) to the computer to represent the key pressed (8)
• 7. Used to read data without physical contact. (4, 6)