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Digital Electronics - Number Systems and Codes

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Exercise

"I never see what has been done; I only see what remains to be done."
- Marie Curie
1. 

Convert hexadecimal value 16 to decimal.

A. 2210B. 1610
C. 1010D. 2010

2. 

Convert the following decimal number to 8-bit binary.
187

A. 101110112B. 110111012
C. 101111012D. 101111002

3. 

Convert binary 111111110010 to hexadecimal.

A. EE216B. FF216
C. 2FE16D. FD216

4. 

Convert the following binary number to decimal.
010112

A. 11B. 35
C. 15D. 10

5. 

Convert the binary number 1001.00102 to decimal.

A. 90.125B. 9.125
C. 125D. 12.5

6. 

Decode the following ASCII message.

10100111010100101010110001001011001
01000001001000100000110100101000100

A. STUDYHARD
B. STUDY HARD
C. stydyhard
D. study hard

7. 

The voltages in digital electronics are continuously variable.

A. TrueB. False




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