Which of the following refers to the case that contains and protects the motherboard?

1. How many peripheral devices can you connect with a USB port?
   
   
   
   

   Inhaltsverzeichnis Show

   • What is the case that encloses and protects the power supply motherboard processor and memory of a computer?
   • Which of the following is a case on a desktop that contains and protects the electronic components?
   • Is the electronic component that interprets and carries out the basic instructions that operate the computer?
   • Which protects against electrical power variations?

   D. up to 127

2. Which of the following are capable of processing many trillions of instructions in a single second?
   
   
   
   

   A. supercomputers

3. Short text messages sent via a text message service are typically fewer than how many characters?
   
   
   
   

   B. 300

4. Which of the following is NOT a likely complaint of someone who spends his or her workday using the computer?
   
   
   
   

   B. high blood pressure

5. If a POS terminal is able to update inventory at geographically separate locations, what is the term for this ability?
   
   
   
   

   C. internet capable

6. Which of the following occurs when the incoming electrical supply or voltage increases, often defined as more than five percent, above the normal volts?
   
   
   
   

   B. undervoltge

7. What is the term for the picture/video message service available on smartphones and other mobile devices?
   
   
   
   

   C. MMS

8. What is the term for the smallest element in an electronic image?
   
   
   
   

   D. pixel

9. 
   Which of the following is an alternative to the use of your finger to enter data on a tablet like the one shown in the accompanying figure?
   
   
   
   

   A. stylus

10. Which of the following do most major corporations use for business activities like billing millions of customers, preparing payroll for thousands of employees, and managing millions of items in inventory?
    
    
    
    

    D. mainframes

11. The video clips that users of video message services send are typically how long?
    
    
    
    

    D. 30 seconds

12. Which of the following are capable of processing many trillions of instructions in a single second?
    
    
    
    

    C. supercomputers

13. Which of the following protects against electrical power variations?
    
    
    
    

    C. surge protector

14. Which of the following is NOT a type of kiosk?
    
    
    
    

    A. media

15. Which of the following is a device that plugs in a USB port on the computer or mobile device and contains multiple USB ports?
    
    
    
    

    B. USB hub

16. 
    Which of the following is the practice of sharing computing resources, such as servers, like those in the accompanying figure?
    
    
    
    

    A. virtualization

17. Which of the following are small speakers that rest inside each ear canal?
    
    
    
    

    B. earbuds

18. What percent of e-waste is recycled?
    
    
    
    

    D. 20

19. Which of the following are the fastest, most powerful computers — and the most expensive?
    
    
    
    

    A. supercomputers

20. If a POS terminal is able to update inventory at geographically separate locations, what is the term for this ability?
    
    
    
    

    A. internet capable

21. Which of the following is NOT a likely complaint of someone who spends his or her workday using the computer?
    
    
    
    

    C. high blood pressure

22. Which of the following is an example of an operating system?
    
    
    
    

    A. Windows

23. Which of the following do most major corporations use for business activities like billing millions of customers, preparing payroll for thousands of employees, and managing millions of items in inventory?
    
    
    
    

    A. mainframes

24. Which of the following is NOT a type of kiosk?
    
    
    
    

    B. media

25. Which of the following is not a determinant of the category in which a computer best fits?
    
    
    
    

    B. resolution

26. Which of the following exists in the form of a single circuit board?
    
    
    
    

    D. blade server

27. Which of the following companies does not manufacture computers that use the Windows operating system?
    
    
    
    

    C. Apple

28. Which of the following kinds of UPS runs off a battery?
    
    
    
    

    C. online UPS

29. Which of the following cameras is a high-end digital camera that has interchangeable lenses and uses a mirror to display on its screen an exact replica of the image to be photographed?

    a.convertible
    b.SLR
    c.MMS
    d.point-and-shoot

    b. SLR

30. Which of the following is housed in a bay within a metal frame?
    
    
    
    

    A. rack server

31. What is another name for a standby UPS?
    
    
    
    

    D. offline UPS

32. What is the electronic component that interprets and carries out the basic instructions that operate the computer?
    
    
    
    

    C. processor

33. Which of the following is an external device that provides connections to peripheral devices through ports built into the device?
    
    
    
    

    A. port replicator

34. Which of the following are large, expensive, powerful computers that can handle hundreds or thousands of connected users simultaneously and store tremendous amounts of data, instructions, and information?
    
    
    
    

    D. mainframes

35. What is the term for the technology that allows users to view message details such as the length of calls, for example?
    
    
    
    

    D. visual voice mail

36. 
    Which of the following is not a part of a server like the one in the accompanying figure?
    
    
    
    

    D. bundled software

37. 
    Which design of tablet, as shown on the right in the accompanying figure, has an attached keyboard?
    
    
    
    

    B. convertible tablet

38. Which of the following is the process of initiating contact between two Bluetooth devices and allowing them to communicate with each other?
    
    
    
    

    B. pairing

39. Which of the following is a four- or five-digit number assigned to a specific content or mobile service provider, for example, to vote for a television program contestant or donate to a charity?
    
    
    
    

    A. CSC

40. Which of the following is a portable, personal computer designed to fit on your lap?
    
    
    
    

    B. notebook

41. Which kind of keyboard projects an image of a keyboard on a flat surface?
    
    
    
    

    D. virtual

42. Which of the following kinds of computing refers to an environment of servers that house and provide access to resources users access through the Internet?
    
    
    
    

    B. cloud

43. 
    Which of the following is a network of several servers, like those in the accompanying figure, together in a single location?
    
    
    
    

    A. server farm

44. It is estimated by one publisher that, on average, libraries replace a print book after how many checkouts?
    
    
    
    

    C. 26

45. Which of the following is an affordable and lightweight digital camera with lenses built into it and a screen that displays an approximation of the image to be photographed?
    
    
    
    

    C. point-and-shoot

46. Which of the following refers to the case that contains and protects the motherboard?
    
    
    
    

    C. system unit

47. Which of the following is an example of a mobile device?
    
    
    
    

    B. smartphones

48. 
    What is the term for an ultrathin laptop (like the one shown in the accompanying figure) that uses the Windows operating system?
    
    
    
    

    D. ultrabook

49. Which of the following is held with both hands and controls the movement and actions of players or objects in video games or computer games?
    
    
    
    

    A. gamepad

50. Which of the following are small and have limited hardware because they are components in larger products?
    
    
    
    

    D. embedded computers

51. Which of the following types of computers targets a specific audience and offers high-quality audio, video, and graphics with optimal performance for sophisticated single-user and networked or Internet multiplayer games?
    
    
    
    

    C. gaming desktop

52. Which of the following is built into an upright cabinet that stands alone?
    
    
    
    

    D. tower server

53. Which of the following is a special-purpose computer that functions as a component in a larger product?
    
    
    
    

    A. embedded computers

What is the case that encloses and protects the power supply motherboard processor and memory of a computer?

Which of the following is a case on a desktop that contains and protects the electronic components?

Is the electronic component that interprets and carries out the basic instructions that operate the computer?

Which protects against electrical power variations?