Electronics - Combinational Logic Circuits
Exercise :: Combinational Logic Circuits - Filling the Blanks
1.
A technique that can be used in multiple-digit numerical displays to control suppression or display of leading or trailing zeros in the display is called _________.
A. advanced zero control B. time division multiplexing C. parity generation D. ripple blanking
Answer: Option D
Explanation:
2.
Parity systems are defined as either_____ or _____ and will add an extra _____ to the digital information being transmitted.
A. positive, negative, byte B. odd, even, bit C. upper, lower, digit D. on, off, decimal
Answer: Option B
Explanation:
3.
A device that uses a binary decoder to direct a digital signal from a single source to one of several destinations is a ________.
A. multiplexer B. demultiplexer C. encoder D. comparator
Answer: Option B
Explanation:
4.
A code in which each individual digit of a decimal number is represented by a 4-bit binary number is _________.
A. binary coded decimal B. binary C. hexadecimal D. seven-segment code
Answer: Option A
Explanation:
5.
The diodes in a seven-segment display where all cathodes are tied together and grounded are illuminated when a logic ____________________ is applied to the ____________________.
A. LOW, anodes B. LOW, count down control line C. HIGH, anode D. HIGH, count up control line
Answer: Option C
Explanation:
