1. Which of the following statements about data and information is/are correct? c
a. Data and information have an identical meaning.
b. Information is generated after the processing of data.
c. Information is needed to help us to make decisions.
2. Video cassette recorders (VCRs) can be programmed to start recording at a preset time. Which of
the following data is/are needed? d
a. The start and stop time input by users.
b. The time of the internal clock of the VCR.
c. Video cassette tape.
d. Only (a) and (b)
3. Which of the following descriptions about data is/are correct? a
a. A given set of data, when processed in different ways, can generate different information.
b. Data must be consisted of digits.
c. Data is a record of facts.
4. Electronic data processing. b
a. is superior in term of speed and accuracy..
b. can always provide accurate and correct information.
c. will always lead to an increase in operational cost of an organization.
5. Which of the followings is/are essential factor(s) to obtain accurate information? c
a. Accurate data.
b. An appropriate processing procedures.
c. The use of electronic data processing.
6. Which of the following organizations is/are most likely to be benefited from computerization? d
a. Hospitals.
b. Snack shops.
c. Supermarkets.
d. Only (a) and (c).
7. When the resolution setting of a display unit is raised. b
a. texts and images can be magnified.
b. more different number of colours to be displayed.
c. a larger monitor to be used.
8. The quality of a scanned image depends on. a
a. the resolution of the scan.
b. The number of different colours can be distinguished.
c. the speed of the scanning process.
9. Dot matrix printers. d
a. provide low cost printings.
b. are good for printing invoices with carbon copies.
c. has completely replaced by other printers due to its low printing quality.
d. Only (a) & (b)
10. Inkjet printers. d
a. provide a low cost solution for colour printing.
b. can replace all dot matrix printers.
c. require quality papers for maximum printout quality.
d. Only (a) and (c)
11. Sound/speech synthesizers are commonly found in. d
a. automatic telephone enquiry services.
b. electronic dictionaries.
c. Chinese speech recognition systems.
d. Only (a) & (b)
12. Internet video conferencing requires. d
a. digital cameras.
b. speech synthesizing systems.
c. microphones.
d. All true anwser.
13. Bar codes are commonly found in. b
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a. Hong Kong identity cards.
b. Supermarkets , Public libraries.
c. Every computer in lab school.
d. In the CDROM from manufactor.
14. Which of the following devices can be used in making computer graphics? d
a. Digital cameras.
b. Optical character recognition systems.
c. Image scanners.
d. Only (a) and (c)
15. Which of the followings are common for RAM and ROM?. d
a. Their access time is much shorter than that of hard disks.
b. Both of them are made of semiconductors.
c. Both of them cannot store data and program permanently.
d. Only (a) and (b)
16. Which of the following devices can be randomly accessed? d
a. floppy disks.
b. hard disks.
c. magnetic tape.
d. RAM
17. A computer system needs a backing storage because. d
a. the price of main memory is high and its capacity is limited.
b. the content in main memory is lost when the computer is powered off.
c. the backing storage can be used to backup important data.
d. All true anwser
18. Nowadays people prefers rewritable-CDs to floppy disks. This is because. d
a. The price of rewritable CDs has become popular.
b. The content in a CD is not affected by magnetic fields.
c. The capacity of a CD is several hundred times larger than that of a floppy disk.
d. All true anwser
19. Magnetic tapes are usually used to backup large amount of infrequently used data. Which of the
following are possible reasons? c
(1) The price per storage unit of magnetic tapes is lower than most backing storage media.
(2) Magnetic tapes can not be accessed sequentially. Therefore, it is most suitable for backing
up large amount of data which is not in frequent use.
(3) Magnetic tapes are more robust than other backing storage media.
a. (1) only
b. (1) and (2) only.
c. (1), (2) and (3).
d. (2) and (3) only.
20. The following sequences shows the hierarchy of data organization from top level to the bottom.
Which one of them is correct? d
a. field, character, record, file.
b. record, file, character, field,
c. file, record, character, field.
d. file, record, field, char.
21. Which of the following is not an octal number.b
a. 451.
b. 880.
c. 325.
d. 162.
22. A computer uses the 8-bit two's complement representation to represent integers. The smallest and
largest integer the computer can process are.d
a. -8, 7.
b. -127, 127.
c. -256, 255.
d. -128, 127.
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23. The main advantage of two's complement representation over that of sign-and-magnitude
representation is. b
a. With the same number of bits, two's complement representation can represent a wider
range of integers.
b. With two's complement representation, substractions can be performed by addition.
c. In two's complement representation, only one bit pattern is used to represent the integer 0.
d. Program designing can be simplified with the use of two's complement representation.
24. The two's complement of the bit pattern 01101101 is. b
a. 11101101.
b. 10010011.
c. 10110110.
d. 10010010.
25. How many bytes of memory locations are needed to store an English character and a Chinese
character respectively? b
a. one, one.
b. one, two.
c. two, two.
d. two, one.
26. The decimal number corresponding to 0.01101(2) is.b
a. 0.2031.
b. 0.40625.
c. 1.625.
d. 0.8125.
27. Which of the following binary number is normalized? d
a. 11.110111.
b. 1.1111011.
c. 1.01101 × 10^-11.
d. 0.10111 × 10^101.
28. Which of the followings is/are handled by the Control Unit? c
(1) tells the main memory whether a read or write operation is going to carry out.
(2) instruction decoding.
(3) send and receive control signals to and from peripheral devices.
a. (2) only.
b. (1) and (3) only.
c. (1), (2) and (3).
d. (2) and (3) only
29. Which of the following statements about the Program Counter is NOT correct?. b
a. The Program Counter is a register in the Control Unit.
b. The content in the Program Counter will always be increased by 1 in each instruction cycle.
c. The Program Counter stores the address of the next instruction.
d. There must be only one Program Counter in each CPU.
30. Which of the following sequences is a correct description of the instruction cycle? c
a. Fetch - Execution – Decode.
b. Decode - Fetch – Execution.
c. Fetch - Decode – Execution.
d. Excecution - Decode – Fetch.
31. Op-code d
(1) is a part of a machine instruction.
(2) represents the address of the memory location containing the required data.
(3) specifies what operation is to be carried out by the computer.
a. (1) only.
b. (1) and (2) only.
c. (1), (2) and (3).
d. (1) and (3) only.
32. Which of the following signals are sent to the CPU in instruction cycles? c
(1) address signals
(2) machine instructions
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(3) data
a. (1) only.
b. (3) only.
c. (2) and (3) only.
d. (1) and (2) only.
33. Programs are written by low level languages.d
a. occupy less storage space.
b. can more easily be read and interpreted by human.
c. run faster.
d. Only (a) and (b)
34. Which of the following translators generate object programs? b
(1) assemblers
(2) compliers
(3) interpreters
a. (1) only.
b. Only (2)
c. (1), (2) and (3).
d. (1) and (3) only.
35. The following statements describe the trend in the development of programming languages. Which
of them is/are correct? b
(1) programming languages become more structural.
(2) programming languages are becoming more English-like.
(3) low level languages are no longer used.
a. (1) only.
b. (2) only
c. (1), (2) and (3)
d. (2) and (3) only
36. Which of the following errors can be detected by a compiler? a
(1) syntax error
(2) run-time error
(3) logical error
a. (1) only
b. (1) and (2) only
c. (1), (2) and (3)
d. (2) and (3) only.
37. Which of the following errors can be detected by an interpreter? b
(1) syntax error
(2) run-time error
(3) logical error
a. (1) only
b. (1) and (2) only
c. (1), (2) and (3)
d. (2) and (3) only.
38. Which of the following strategies can reduce the amount of time the CPU spends on waiting for the
peripheral devices to complete their operations? b
(1) Use technique of spooling.
(2) Employ a multi-tasking operating system.
(3) Set peripheral devices to offline mode.
a. (1) only
b. (1) and (2) only
c. (1), (2) and (3)
d. (2) and (3) only
39. Which of the following is/are the responsibility/responsibilities of the operating system in a
computer? d
(1) Compile high level language programs.
(2) Maintain the file structures in the hard disk.
(3) Queuing print jobs
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a. (1) only
b. (1) and (2) only
c. (1), (2) and (3)
d. (2) and (3) only
40. The dynamic address translation feature finds a program's page table through the
___________________. c
a. page frame table.
b. page address registers.
c. page table location register.
d. page base registers.
41. All of the following are commonly used output devices except __________. a
a. a keyboard.
b. a printer
c. a monitor
d. speakers.
42. __________ holds data, instructions, and information for future use. a
a. Storage
b. Output
c. Memory
d. Input
43. A __________ is a type of compact disc that has tremendous storage capacities - enough for a full-
length movie. a
a. DVD-ROM
b. DV-RW
c. CD-RW
d. CVD-ROM.
44. A modem is a(n) __________. b
a. small, handheld input device that contains at least one button
b. communications device that enables computers to communicate via telephone lines.
c. output device that looks like a television screen and displays text or graphics
d. storage device that stores data using microscopic pits created by laser light
45. The user interface controls how data and instructions are __________. b
a. processed and how information is communicated on a network.
b. entered and how information is displayed on the screen
c. entered and how information is communicated on a network
d. processed and how information is displayed on the screen.
46. __________ software allows numbers arranged in rows and columns to be calculated. c
a. Word processing
b. Database
c. Spreadsheet
d. Presentation graphics
47. __________ write the instructions that direct a computer to process data into information. a
a. Programmers
b. Users
c. Systems analysts
d. Digital assistants
48. Today, the terms PC and compatible refer to any personal computer that __________. a
a. is based on specifications of the original IBM personal computer
b. uses the Macintosh operating system
c. uses a graphical user interface
d. is based on specifications of the original Apple personal computer
49. A mini-tower model computer usually is __________ inches tall. a
a. 13
b. 21
c. 16
d. 24
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