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
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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) Binary cells
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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 are ____________
a) Storage cells
b) Data cells
c) Unit cells
d) Both data and unit cells
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Explanation: To transfer the information from input to output and vice versa, the cells used are called storage cells. The storage cells stores data in the form of binary information.
4. The data stored in a group of bits is called ____________
a) Nibble
b) Word
c) Byte
d) Address
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Explanation: The data stored in a group of bits is called word. Usually, a word is a group of 16-bits or 2-bytes.
5. Each word consist of a sequence of ____________
a) Letters
b) Binary numbers
c) Hexadecimal numbers
d) Gray codes
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Explanation: Each word consists of a sequence of 0s and 1s (i.e. binary numbers). Usually, a word is a group of 16-bits or 2-bytes.
6. Each word stored in a memory location is represented by ____________
a) RAM
b) ROM
c) Storage class
d) Address
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Explanation: Each word stored in a memory location is represented by address. Usually, a word is a group of 16-bits or 2-bytes.
7. The group of each 8-bit is called ____________
a) Nibble
b) Flag
c) Byte
d) Word
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Explanation: 1 byte = 8-bit, 4-bits = 1 nibble and 16-bits = 1 word.
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
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Explanation: The total number of bytes that can be stored, is the maximum capacity of a memory unit. However, memory unit is the smallest unit of a processor.
9. The communication between memory and its environment is achieved through ____________
a) Control lines
b) Data input/output lines
c) Address selection lines
d) All of the Mentioned
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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. The control lines are responsible for the timing and control of the signals sent and received.
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
View Answer
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.
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