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Digital Electronics
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Memory and Storage
Comments
Question
Testing and troubleshooting the decoding logic will not reveal problems with the memory chips and their connections to the CPU busses.
Options
A. True
B. False
Correct Answer
True
Memory and Storage problems
Search Results
1. Main computer memory is usually DRAM because of its high density and low cost; cache memory is usually SRAM because of its high speed.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
2. The address-decoding scheme for a 16K-byte EPROM memory system requires a 1-to-8-address decoder when 4K × 8 memory is used.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
3. A burst refresh and a normal memory operation of a DRAM can be interspersed.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
4. Assume an 8-bit serial in/parallel out shift register needs to be cleared but has no clear input. How many clock cycles are required before a zero applied to the input appears on the Q
H
output?
Options
A. 1
B. 7
C. 8
D. 9
Show Answer
Scratch Pad
Discuss
Correct Answer: 8
5. Shifting a binary number to the left by one position is equivalent to ________.
Options
A. multiplying by two
B. multiplying by four
C. dividing by two
D. dividing by four
Show Answer
Scratch Pad
Discuss
Correct Answer: multiplying by two
Explanation:
Shifting a binary number by one bit is equivalent to multiplying (when shifting to the left) or dividing (when shifting to the right) the number by 2.
6. Fusible-link PROMs are programmed by removing the desired fuse links using a microscope and tweezers.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
7. A ROM that allows the user to program data into the chip by permanently opening fusible links is the EPROM.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
8. A group of 6 bits is also known as 1 byte.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
9. RAMs must have a
input, in addition to data in.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
10. RAM stands for Readily Accessible Memory.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
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