CuriousTab
Search
CuriousTab
Home
Aptitude
Computer
C Programming
C# Programming
C++ Programming
Database
Java Programming
Networking
Engineering
Biochemical Engineering
Biochemistry
Biotechnology
Chemical Engineering
Civil Engineering
Computer Science
Digital Electronics
Electrical Engineering
Electronics
Electronics and Communication Engineering
Mechanical Engineering
Microbiology
Technical Drawing
GK
Current Affairs
General Knowledge
Reasoning
Data Interpretation
Logical Reasoning
Non Verbal Reasoning
Verbal Ability
Verbal Reasoning
Exams
AIEEE
Bank Exams
CAT
GATE
IIT JEE
TOEFL
Jobs
Analyst
Bank PO
Database Administrator
IT Trainer
Network Engineer
Project Manager
Software Architect
Discussion
Home
‣
Computer Science
‣
Digital Computer Electronics
Comments
Question
The reduced form of the Boolean expression (A+B)(A+C) is:
Options
A. AB+AC
B. A+B+C
C. AC+B
D. A+BC
E. None of the above
Correct Answer
A+BC
Digital Computer Electronics problems
Search Results
1. Which function positive logic is equivalent to OR function in negative logic?
Options
A. NOT
B. AND
C. OR
D. NOR
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: AND
2. For an input pulse train of clock period T, the delay produced by an n stage shift register is
Options
A. (n-l)T
B. nT
C. (n+l)T
D. 2nT
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: (n-l)T
3. A flip-flop can store
Options
A. one bit of data
B. two bits of data
C. three bits of data
D. any number of bits of data
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: one bit of data
4. The functional capacity of SSI devices is
Options
A. 1 to 11 gates
B. 12 to 99 gates
C. 100 to 10,000 gates
D. more than 10,000 gates
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 1 to 11 gates
5. Conversion of a hexadecimal number 63
16
to binary number is
Options
A. 1100111
2
B. 1100011
2
C. 111011
2
D. 1100111
2
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 1100011
2
6. _____ has become the most widely used bipolar family.
Options
A. DTL
B. TTL
C. ECL
D. MOS
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: TTL
7. The radix of the binary number is:
Options
A. 3
B. 1
C. 2
D. 10
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 2
8. When the LOAD input of a buffer register is active, the input word is stored on the next positive _____ edge.
Options
A. clock
B. pulse
C. register
D. transistor
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: clock
9. The output of the following gate is 1 only if at least one of its inputs is 0.
Options
A. AND gate
B. OR gate
C. NAND gate
D. NOR gate
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: NAND gate
10. The number of input words in a truth table always equals _____ where n is the number of inputs bits.
Options
A. 10
n
B. 2
n
C. 4
n
D. 8
n
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 2
n
Comments
There are no comments.
Enter a new Comment
Save
More in Computer Science:
Artificial Intelligence
Automation System
Computer Fundamentals
Computer Hardware
Database Systems
Digital Computer Electronics
Disk Operating System (DOS)
Electronic Principles
Language Processors
Linux
Management Information Systems
Networking
Object Oriented Programming Using C++
Operating Systems Concepts
System Analysis and Design
Unix
Windows 2000 Server
Windows NT