39
Figure 4K.—Down counter.
WHEN ANSWERING QUESTIONS 4-56 AND
4-57, REFER TO FIGURE 4K.
4-56. Assume only FF 1 and FF 3 are set.
Which, if any, of the flip-flops will be
set after the next clock pulse?
1. FF 2 only
2. FF 3 only
3. FF 2 and FF 3
4. None
4-57. Assume that all FFs are set, which of the
following actions will take place at
clock pulse 4?
1. FF 1, FF 2 and FF 3 will set
2. FF 1 will set, FF 2 and FF 3 will
reset
3. FF 1, FF 2, and FF 3 will reset
4. FF 1 and FF 2 will set, FF 3 will
reset
4-58. What term identifies a series of FFs
designed to temporarily store
information?
1. Data word
2. Counter
3. Register
4. DIP package
4-59. Which of the following statements
describes parallel transfer?
1. Data is transferred one bit at a time
2. All data bits are transferred
simultaneously
3. Data is received in serial form and
transferred in parallel form
4. Data is transferred on a single line
