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Wednesday, April 29, 2020

COMPUTER AWARENESS - MEMORY MCQS SET 70

COMPUTER AWARENESS -MEMORY MCQS SET 70

1. The refresh period for capacitors used in DRAMs is ________.
A.2 ms        B.2  s        C.64 ms            D.64  s
Answer: Option A
2. What is the principal advantage of using address multiplexing with DRAM memory?
A.reduced memory access time
B.reduced requirement for constant refreshing of the memory contents
C.reduced pin count and decrease in package size
D.It eliminates the requirement for a chip-select input line, thereby reducing the pin count.
Answer: Option C

3. What is a multitap digital delay line?
A. a series of inverter gates with RC circuits between each one
B. a series of inverter gates with RL circuits between each one
C. a series of NAND gates with RC circuits between each one
D. a series of NAND gates with RL circuits between each one
Answer: Option A
4. The bit capacity of a memory that has 2048 addresses and can store 8 bits at each address is ________.
A.4096            B.8129            C.16358        D.32768
Answer: Option C

5. How many 8 k × 1 RAMs are required to achieve a memory with a word capacity of 8 k and a word length of eight bits?
A.Eight            B.Four            C.Two            D.One
Answer: Option A
6. The mask ROM is ________.
A.MOS technology        B.diode technology        C.resistor-diode technology
D.DROM technology
Answer: Option A

7. Which of the following is not a flash memory mode or operation?
A.Burst            B.Read            C.Erase            D.Programming
Answer: Option A
8. The smallest unit of binary data is the ________.
A.bit        B.nibble    C.byte        D.word
Answer: Option A

9. Select the statement that best describes the fusible-link PROM.
A.user-programmable, one-time programmable
B.manufacturer-programmable, one-time programmable
C.user-programmable, reprogrammable
D.manufacturer-programmable, reprogrammable
Answer: Option A

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