Wednesday

January 28, 2015

January 28, 2015

Posted by **Thomas** on Monday, April 29, 2013 at 3:16pm.

A. MOD 128 ripple counter

B. MOD 256 synchronous counter

C. MOD 256 ripple counter

D. MOD 128 synchronous counter

2. Which group of logic devices represents the minimum hardware required for a MOD 128 synchronous counter?

A. four flip flops, two AND gates

B. five flip flops, three AND gates

C. six flip flops, four AND gates

D. seven flip flops, five AND gates

3.A 50 kHz clock pulse is applied to a MOD-20 ripple counter. What is the output frequency?

A. 1.88 kHz

B. 1.55 kHz

C. 2.5 kHz

D. 2kHz

4. A production plant needs a counter that will count 1,800 items before resetting and recycling. How many flip-flop stages would this counter require?

A. 13

B. 10

C. 11

D. 12

- Computers -
**Anonymous**, Saturday, May 24, 2014 at 1:32amdeded

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