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(a) Digital Conversion, Sampling and Computer Architecture ADC RAM DAC DDR CPU ROM BIOS EDC (i) Which one of the above acronyms is a device you would not find in a computer? (ii) Six of the above are the most essential parts of a computer. List the six and give their full names. (b) Design a circuit to make an LED blink after 1 second forever. You can choose to use an Arduino microcontroller or only electronic components. In case of Arduino, draw a circuit diagram showing connections and give the code (graphical or sequential) as well. Otherwise, only make the circuit diagram. (c) The following figures show part of an analogue signal being digitised, at two different sampling rates. Make your explanation brief. (1) Explain how the difference in the sampling rates in figure 1 and figure 2 will affect the file sizes after digitisation. (ii) Which of the two sampling rates would you consider to be the least efficient to reproduce the original analogue signal accurately? (ii) What is the preferred digital sample rate (frequency) of an analogue audio signal that would be needed to accurately reproduce the original signal? Figure 1 Figure 2 15 14 13 12 11 10 6. 15 14 13 12 11 10 6. 4 (iv) Draw the digital signals corresponding to the analogue signals is Figure 1 and Figure 2.

(a) Digital Conversion, Sampling and Computer Architecture ADC RAM DAC DDR CPU ROM BIOS EDC (i) Which one of the above acronyms is a device you would not find in a computer? (ii) Six of the above are the most essential parts of a computer. List the six and give their full names. (b) Design a circuit to make an LED blink after 1 second forever. You can choose to use an Arduino microcontroller or only electronic components. In case of Arduino, draw a circuit diagram showing connections and give the code (graphical or sequential) as well. Otherwise, only make the circuit diagram. (c) The following figures show part of an analogue signal being digitised, at two different sampling rates. Make your explanation brief. (1) Explain how the difference in the sampling rates in figure 1 and figure 2 will affect the file sizes after digitisation. (ii) Which of the two sampling rates would you consider to be the least efficient to reproduce the original analogue signal accurately? (ii) What is the preferred digital sample rate (frequency) of an analogue audio signal that would be needed to accurately reproduce the original signal? Figure 1 Figure 2 15 14 13 12 11 10 6. 15 14 13 12 11 10 6. 4 (iv) Draw the digital signals corresponding to the analogue signals is Figure 1 and Figure 2.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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(a) Digital Conversion, Sampling and Computer Architecture ADC RAM DAC DDR CPU ROM BIOS EDC (i) Which one of the above acronyms is a device you would not find in a computer? (ii) Six of the above are the most essential parts of a computer. List the six and give their full names. (b) Design a circuit to make an LED blink after 1 second forever. You can choose to use an Arduino microcontroller or only electronic components. In case of Arduino, draw a circuit diagram showing connections and give the code (graphical or sequential) as well. Otherwise, only make the circuit diagram. (c) The following figures show part of an analogue signal being digitised, at two different sampling rates. Make your explanation brief. (1) Explain how the difference in the sampling rates in figure 1 and figure 2 will affect the file sizes after digitisation. (ii) Which of the two sampling rates would you consider to be the least efficient to reproduce the original analogue signal accurately? (ii) What is the preferred digital sample rate (frequency) of an analogue audio signal that would be needed to accurately reproduce the original signal? Figure 1 Figure 2 15 14 13 12 11 10 6. 15 14 13 12 11 10 6. 4 (iv) Draw the digital signals corresponding to the analogue signals is Figure 1 and Figure 2.
Transcribed Image Text:(a) Digital Conversion, Sampling and Computer Architecture ADC RAM DAC DDR CPU ROM BIOS EDC (i) Which one of the above acronyms is a device you would not find in a computer? (ii) Six of the above are the most essential parts of a computer. List the six and give their full names. (b) Design a circuit to make an LED blink after 1 second forever. You can choose to use an Arduino microcontroller or only electronic components. In case of Arduino, draw a circuit diagram showing connections and give the code (graphical or sequential) as well. Otherwise, only make the circuit diagram. (c) The following figures show part of an analogue signal being digitised, at two different sampling rates. Make your explanation brief. (1) Explain how the difference in the sampling rates in figure 1 and figure 2 will affect the file sizes after digitisation. (ii) Which of the two sampling rates would you consider to be the least efficient to reproduce the original analogue signal accurately? (ii) What is the preferred digital sample rate (frequency) of an analogue audio signal that would be needed to accurately reproduce the original signal? Figure 1 Figure 2 15 14 13 12 11 10 6. 15 14 13 12 11 10 6. 4 (iv) Draw the digital signals corresponding to the analogue signals is Figure 1 and Figure 2.
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