This set of Digital Electronic Circuits Questions & Answers for campus interviews focuses on “Introduction of Memory Devices-5”.
1. When two or more devices try to write data in a bus simultaneously, is known as
a) Bus collisions
b) Address multiplexing
c) Address decoding
d) Bus contention
Explanation: Bus contention is an undesirable state of the bus of a computer, in which more than one memory mapped device, or the CPU is attempting to place output values onto the bus at once.
2. A memory is a collection of
a) Unit cells
b) Storage cells
c) Data cells
d) None of the Mentioned
Explanation: A memory is a collection of storage cells with associated circuits needed to transfer information.
3. To transfer the information from input to output and vice versa, the cells used is
a) Storage cells
b) Data cells
c) Unit cells
d) Both data and unit cells
Explanation: To transfer the information from input to output and vice versa, the cells used is called storage cells.
4. The data stored in group of bits is called
Explanation: The data stored in group of bits is called word.
5. Each word consist of a sequence of
b) Binary numbers
c) Hexadecimal numbers
d) Gray codes
Explanation: Each word consist of a sequence of 0s and 1s (i.e. binary numbers).
6. Each word stored in a memory location is represented by
c) Storage class
Explanation: Each word stored in a memory location is represented by address.
7. The group of each 8-bit is called
Explanation: 1 byte = 8-bit.
8. The capacity of a memory unit is
a) The number of binary input stored
b) The number of words stored
c) The number of bytes stored
d) All of the Mentioned
Explanation: The total number of bytes that can be stored, is the maximum capacity of a memory unit.
9. The communication between a memory and its environment is achieved through
a) Control lines
b) Data input/output lines
c) Address selection lines
d) All of the Mentioned
Explanation: Firstly, the data input is needed to transfer the information and it is passed through the address lines and then controlled by control lines.
10. One of the most important specifications on magnetic media is the
a) Polarity reversal rate
b) Tracks per inch
c) Data transfer rate
d) Rotation speed
Explanation: The rate of data transfer depends on the properties of magnetic media.
Sanfoundry Global Education & Learning Series – Digital Circuits.
To practice all areas of Digital Electronic Circuits for campus interviews, here is complete set of 1000+ Multiple Choice Questions and Answers.