UGC NET Computer Science Digital Circuit Design Previous Year Questions (PYQs)
A Place for Latest Exam wise Questions, Videos, Previous Year Papers,
Study Stuff for MCA Examinations
Study Stuff for MCA Examinations
Which of the followings are sequential circuit?
A. Flip flop
B. Multiplexer
C. Counter
D. Decoder
E. Adder
1
2
3
4
Solution
Sequential circuits depend on previous state (memory).
• Flip-flop → sequential circuit
• Counter → sequential circuit
Multiplexer, Decoder and Adder are combinational circuits.
Match List – I with List – II.
| List – I (Counter) | List – II (uses/working) |
| (A) N-bit Ring Counter | (I) Uses universal clock |
| (B) Synchronous Counter | (II) Counts exactly N states |
| (C) Asynchronous Counter | (III) Counts 0 to 9 |
| (D) Decimal Counter | (IV) Main clock is applied to first flip-flop only |
Choose the correct answer from the options given below :
1
2
3
4
Solution
(A) N-bit Ring Counter → Counts exactly N states → (II)
(B) Synchronous Counter → Uses common (universal) clock → (I)
(C) Asynchronous Counter → Main clock applied only to first flip-flop → (IV)
(D) Decimal Counter → Counts from 0 to 9 → (III)
Correct matching:
(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
UGC NET Computer Science
Online Test Series, Information About Examination,
Syllabus, Notification
and More.
View More
UGC NET Computer Science
Online Test Series, Information About Examination,
Syllabus, Notification
and More.
View More
Ask Your Question or Put Your Review.
