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Electronics - Combinational Logic Circuits

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Exercise

"Everything should be made as simple as possible, but not simpler."
- Albert Einstein
1. 

How many inputs are required for a 1-of-10 BCD decoder?

A. 4B. 8
C. 10D. 1

2. 

Most demultiplexers facilitate which of the following?

A. decimal to hexadecimal
B. single input, multiple outputs
C. ac to dc
D. odd parity to even parity

3. 

One application of a digital multiplexer is to facilitate:

A. code conversion
B. parity checking
C. parallel-to-serial data conversion
D. data generation

4. 

Select one of the following statements that best describes the parity method of error detection:

A. Parity checking is best suited for detecting single-bit errors in transmitted codes.
B. Parity checking is best suited for detecting double-bit errors that occur during the transmission of codes from one location to another.
C. Parity checking is not suitable for detecting single-bit errors in transmitted codes.
D. Parity checking is capable of detecting and correcting errors in transmitted codes.

5. 

A multiplexed display:

A. accepts data inputs from one line and passes this data to multiple output lines
B. uses one display to present two or more pieces of information
C. accepts data inputs from multiple lines and passes this data to multiple output lines
D. accepts data inputs from several lines and multiplexes this input data to four BCD lines




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