Digital Electronics - Digital Concepts
Exercise :: Digital Concepts - General Questions
11. |
Parallel format means that: |
A. |
each digital signal has its own conductor. | B. |
several digital signals are sent on each conductor. | C. |
both binary and hexadecimal can be used. | D. |
no clock is needed. |
Answer: Option A
Explanation:
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12. |
A decoder converts ________. |
A. |
noncoded information into coded form | B. |
coded information into noncoded form | C. |
HIGHs to LOWs | D. |
LOWs to HIGHs |
Answer: Option B
Explanation:
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13. |
A DAC changes ________. |
A. |
an analog signal into digital data | B. |
digital data into an analog signal | C. |
digital data into an amplified signal | D. |
none of the above |
Answer: Option B
Explanation:
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14. |
The output of a NOT gate is HIGH when ________. |
A. |
the input is LOW | B. |
the input is HIGH | C. |
the input changes from LOW to HIGH | D. |
voltage is removed from the gate |
Answer: Option A
Explanation:
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15. |
The output of an OR gate is LOW when ________. |
A. |
all inputs are LOW | B. |
any input is LOW | C. |
any input is HIGH | D. |
all inputs are HIGH |
Answer: Option A
Explanation:
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