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
‣
Digital Electronics
‣
Shift Registers
Comments
Question
Computers operate on data internally in a ________ format.
Options
A. tristate
B. universal
C. parallel
D. serial
Correct Answer
parallel
Shift Registers problems
Search Results
1. In a 4-bit Johnson counter sequence there are a total of how many states, or bit patterns?
Options
A. 1
B. 2
C. 4
D. 8
Show Answer
Scratch Pad
Discuss
Correct Answer: 8
2. The primary purpose of a three-state buffer is usually:
Options
A. to provide isolation between the input device and the data bus
B. to provide the sink or source current required by any device connected to its output without loading down the output device
C. temporary data storage
D. to control data flow
Show Answer
Scratch Pad
Discuss
Correct Answer: to provide isolation between the input device and the data bus
3. A 74HC195 4-bit parallel access shift register can be used for ________.
Options
A. serial in/serial out operation
B. serial in/parallel out operation
C. parallel in/serial out operation
D. all of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: all of the above
4. Another way to connect devices to a shared data bus is to use a ________.
Options
A. circulating gate
B. transceiver
C. bidirectional encoder
D. strobed latch
Show Answer
Scratch Pad
Discuss
Correct Answer: transceiver
5. When an 8-bit serial in/serial out shift register is used for a 20 µs time delay, the clock frequency is ________.
Options
A. 40 kHz
B. 50 kHz
C. 400 kHz
D. 500 kHz
Show Answer
Scratch Pad
Discuss
Correct Answer: 400 kHz
6. Which is not characteristic of a shift register?
Options
A. Serial in/parallel in
B. Serial in/parallel out
C. Parallel in/serial out
D. Parallel in/parallel out
Show Answer
Scratch Pad
Discuss
Correct Answer: Serial in/parallel in
7. Which type of ROM can be erased by UV light?
Options
A. ROM
B. mask ROM
C. EPROM
D. EEPROM
Show Answer
Scratch Pad
Discuss
Correct Answer: EPROM
8. When a RAM module passes the checkerboard test it is:
Options
A. able to read and write only 1s.
B. faulty.
C. probably good.
D. able to read and write only 0s.
Show Answer
Scratch Pad
Discuss
Correct Answer: probably good.
9. The refresh period for capacitors used in DRAMs is ________.
Options
A. 2 ms
B. 2 µs
C. 64 ms
D. 64 µs
Show Answer
Scratch Pad
Discuss
Correct Answer: 2 ms
10. ROMs retain data when the ________.
Options
A. power is off
B. power is on
C. system is down
D. all of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: all of the above
Comments
There are no comments.
Enter a new Comment
Save
More in Digital Electronics:
Boolean Algebra and Logic Simplification
Code Converters and Multiplexers
Combinational Logic Analysis
Combinational Logic Circuits
Computers
Counters
Describing Logic Circuits
Digital Arithmetic Operations and Circuits
Digital Concepts
Digital Design
Digital Signal Processing
Digital System Projects Using HDL
Ex-OR and Ex-NOR Gates
Flip-Flops
Integrated-Circuit Logic Families
Integrated Circuit Technologies
Interfacing to the Analog World
Logic Families and Their Characteristics
Logic Gates
Memory and Storage
Microprocessor Fundamentals
MSI Logic Circuits
Multivibrators and 555 Timer
Number Systems and Codes
Programmable Logic Device
Shift Registers
Signals and Switches
The 8051 Microcontroller