Analogue and Digital Data
Unit 1 .1 Hardware and Software
1. What is the main characteristic of analogue data?
A. It can be easily processed by computers
B. It is continuous and can take any value within a range
C. It can only take discrete values
Answer: B
2. What is the main characteristic of digital data?
A. It is continuous and can take any value within a range
B. It can only take discrete values
C. It is not easily processed by computers
Answer: B
3. What is the main difference between analogue and digital data?
A. Analogue data can only take discrete values
B. Digital data is continuous and can take any value within a range
C. Analogue data is continuous and can take any value within a range, while digital data can only take discrete values
Answer: C
4. What is the process of converting analogue data to digital data called?
A. Digitalization
B. Analogization
C. ADC (Analogue to Digital Conversion)
Answer: C
5. Why is it necessary to convert analogue data to digital data for computer processing?
A. Computers can only process digital data
B. Analogue data is easier to process
C. Digital data takes up less space in memory
Answer: A
6. What is the process of converting digital data to analogue data called?
A. Digitalization
B. Analogization
C. DAC (Digital to Analogue Conversion)
Answer: C
7. Why is it necessary to convert digital data to analogue data for device control?
A. Devices can only process analogue data
B. Digital data is easier to process
C. Analogue data takes up less space in memory
Answer: A
8. Which of the following is an example of analogue data?
A. A digital photo
B. A vinyl record
C. A PDF file
Answer: B
9. Which of the following is an example of digital data?
A. A cassette tape
B. A handwritten letter
C. An MP3 file
Answer: C
10. Which of the following is a characteristic of analogue data?
A. It can be easily compressed
B. It is continuous and can take any value within a range
C. It can only take discrete values
Answer: B
11. Which of the following is a characteristic of digital data?
A. It is continuous and can take any value within a range
B. It can only take discrete values
C. It is not easily compressed
Answer: B
12. Which of the following is an example of an ADC?
A. A printer
B. A scanner
C. A microphone
Answer: C