1. A computer is an __________ machine which performs many tasks.

2. The two main parts of a computer system are __________ and Software.

3. Hardware is the __________ part of the computer that we can touch, feel, and see.

4. The most commonly used input devices are __________ and mouse.

5. A __________ is used to enter data and instructions into the computer by typing.

6. A mouse is a __________ input device with a cursor, two buttons, and a scroll wheel.

7. A __________ is an input device used for high-level gaming, consisting of a handheld stick.

8. A __________ reads text and pictures printed on paper and translates them for the computer.

9. A __________ is a pen-like input device used for writing on the computer screen.

10. A __________ tablet is used to draw images with a stylus on a flat surface.

11. A __________ screen is both an input and output device that processes information by touch.

12. A __________ is a video camera used to capture images and videos for visual input.

13. A __________ reader scans printed barcodes and converts them into text for the computer.

14. The output displayed on a monitor is called a __________ copy.

15. A __________ prints the output on paper, producing a hard copy.

16. A __________ projects the computer screen display onto a surface for presentations.

17. __________ are output devices that produce sound from a computer.

18. __________ are portable speakers worn on the ears, also known as earphones.

19. A __________ is a storage device used to store information in a computer.

20. The __________ Unit (ALU) performs all mathematical and logical calculations in a computer.