1. Review questions:
Ch1
1. What is a computer?
2. What is the most common type of personal computer?
3. What are the largest and most powerful computers made?
4. List the four parts of a complete computer system?
5. What are the four phases of the information processing cycle (steps followed to process data)?
6. What is data?
7. List the four categories of computer hardware?
8. Which of the hardware categories is the brain of the computer?
Ch3
1. What is the most common input device?
2. What is the skill of typing called?
3. Which part in the mechanical mouse determines the direction and the speed?
4. In the optical mouse____________ determines the direction and the speed.
5. What do you activate by clicking the right button of the mouse?
6. What is the benefit of using a mouse?
7. Which kind of mouse uses little disk space?
8. Which input device can be found in cramped environment?
9. Which input device converts bar codes to numbers and works by reflecting light?
10. Which input device is rarely 100% accurate?
11. Which input device understands human speech?
Ch4
1. What is a monochrome monitor?
2. What is a grayscale monitors?
3. What is the most common type of monitors?
4. What are the three colors in the CRT monitor?
5. What are the drawbacks of the CRT monitor?
6. What are the drawbacks of the LCD monitor?
7. What are the specifications that you need to check before buying a monitor?
8. What is the actual size and what is the viewable size?
9. ------------------is the number of pixels on the screen.
10. ------------------is the number of time the screen is redrawn.
11. ------------------is the Distance between the same color dots.
12. Where can you find the video cards?
13. List the different types of the data projectors?

2. 14. Where can you find the sound cards?
15. What is the difference between the headphones and the headsets? And what is the benefit
of using them?
16. List the different type of impact printers?
17. List the different type of non impact printers?
18. How can we measure the speed of the dot matrix printer?
19. How can we measure the speed of ink jet printers?
20. What are the colors output in ink-jet printers?
21. What are the colors used in laser printers?
22. What are the All-in-one peripherals?
23. Which printer generates colors by melting wax?
24. Which printer produces realistic output?
Ch5
25. List the different types of storage devices and give some examples?
26. Why we must format the disk before use it?
27. In which kind of CD we cannot change the data?
28. Which kind of CD we can use it up to 100 times?
29. Which storage devices do not use magnet or laser? Give examples?
30. ---------------------- is the amount of data that one device can send to another in a given
amount of time.
31. ----------------------is the time to find desired data
32. How can you clean up unnecessary?
33. How can you find the bad spot on the media files?
34. How can you optimize the disk performance?
35. What is compression a file?