Quelpr

CSEC Information Technology · January 2010 · Paper 1

52 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

Practise this paper
  1. 1(a)2 marksWrite the meaning of the acronym CU and state ONE task performed by it.
  2. 1(b)2 marksWrite the meaning of the acronym ALU and state ONE task performed by it.
  3. 1(c)2 marksWrite the meaning of the acronym RAM and state ONE task performed by it.
  4. 1(d)2 marksWrite the meaning of the acronym ROM and state ONE task performed by it.
  5. 2(a)1 markState the type of optical disk that is best for storing videos.
  6. 2(b)1 markState the type of optical disk that can be reused as necessary.
  7. 2(c)1 markState the type of optical disk commonly used for distributing software.
  8. 33 marksCopy and complete Table 1 matching each Figure (A, B, C) with the correct type of data capture method from the list: OMR, OCR, MICR, Voice Recognition.
  9. 4(a)3 marksCopy and complete Table 2 to indicate which device (Figure 1, 2, 3, or 4) would BEST meet each of the listed organizational requirements: useful for multi-form sheets, produces multiple copies rather quickly, ideal for…
  10. 4(b)1 markWrite the general name given to the devices shown in Figures 1 to 4.
  11. 5(a)1 markCompute the eight-bit binary representation of the decimal number 17.
  12. 5(b)1 markCompute the sign-and-magnitude representation for the decimal number NEGATIVE 17.
  13. 5(c)1 markCompute the result of 55 – 25 using eight-bit, two’s complement representation and express the answer as an eight-bit binary number.
  14. 5(d)1 markState the decimal equivalent for the binary coded decimal number 0011 0101 1000.
  15. 6(a)2 marksWrite TWO ways in which a user can input a command using a graphical user interface.
  16. 6(b)2 marksName TWO types of menu interfaces.
  17. 6(c)2 marksExplain why a graphical user interface is considered to be very user-friendly.
  18. 6(d)2 marksExplain how a user can input a command using the DOS operating system.
  19. 7(a)2 marksState TWO uses of computers in the music industry.
  20. 7(b)4 marksName TWO devices that can connect to the computer and state what they are used for in the music industry.
  21. 8(a)3 marksState the differences between '.edu', '.org' and '.gov' as seen in website addresses.
  22. 8(b)1 markWrite the name of a well-known search engine.
  23. 8(c)(i)1 markState where in a web browser you would type http://www.caribbeannews.com to access the site.
  24. 8(c)(ii)2 marksState what 'http' and 'www' represent in the URL http://www.caribbeannews.com.
  25. 9(a)1 markState the classification for an Intranet.
  26. 9(b)1 markState the classification for an Extranet.
  27. 9(c)1 markState the classification for the Internet.
  28. 10(a)4 marksDescribe TWO ways in which a computer can be used illegally.
  29. 10(b)2 marksOutline ONE example of how an organization can misuse its customers’ personal data.
  30. 11(a)2 marksGive ONE advantage and ONE disadvantage of using credit or debit cards to purchase items.
  31. 11(b)4 marksExplain TWO potential health problems that can develop from using a computer over prolonged periods.
  32. 11(c)2 marksGive ONE positive impact and ONE negative impact resulting from increased use of cell phones in the workplace.
  33. 12(a)2 marksExplain the difference between a 'syntax error' and a 'logic error'.
  34. 12(b)(i)1 markExplain the execution of Line 1: 'If MARK > 50 Then print "Good"'.
  35. 12(b)(ii)1 markExplain the execution of Line 2: 'If MARK >= 50 Then print "Day"'.
  36. 12(c)(i)1 markGiven that MARK is 50, state the line number corresponding to the code above that would print a result.
  37. 12(c)(ii)1 markWrite the result that would be printed when MARK is 50.
  38. 13(a)(i)1 markWrite the line number(s) that contain code to identify input.
  39. 13(a)(ii)2 marksWrite the line number(s) that contain code to identify declaration.
  40. 13(a)(iii)1 markWrite the line number(s) that contain code to identify output.
  41. 13(b)4 marksThe program contains FOUR errors. For EACH error, write the line number and the corrected line of code.
  42. 13(c)(i)1 markIdentify a variable from the program segment.
  43. 13(c)(ii)1 markIdentify a conditional statement from the program segment.
  44. 13(c)(iii)1 markIdentify a data type from the program segment.
  45. 13(d)3 marksExplain the purpose of the program segment.
  46. 13(e)(i)2 marksState the result when value1 = 40, value2 = 50 is used in the corrected program.
  47. 13(e)(ii)2 marksState the result when value1 = 50, value2 = 40 is used in the corrected program.
  48. 13(e)(iii)2 marksState the result when value1 = 50, value2 = 50 is used in the corrected program.
  49. 14(a)1 markState whether (Box1 = 16) is TRUE or FALSE.
  50. 14(b)1 markState whether (Box1 < Box2) is TRUE or FALSE.
  51. 14(c)1 markState whether (Box1 > 16) AND (Box1 < Box2) is TRUE or FALSE.
  52. 14(d)1 markState whether NOT (Box2 = 44) is TRUE or FALSE.

More CSEC Information Technology papers